Science Chapter 3-4 Practice

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  • 1/39 Questions

    An element that has the properties of both metals and nonmetals

    • Metal
    • Element
    • Metalloid
    • Nonmetal
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About This Quiz

This 'Science Chapter 3-4 Practice' quiz assesses understanding of chemical substances and mixtures. It covers concepts such as compounds, solutions, alloys, colloids, and differentiates mixtures from compounds, enhancing students' grasp of chemistry fundamentals.

Science Chapter 3-4 Practice - Quiz

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  • 2. 

    The change of state from a liquid to a solid

    • Melting

    • Condensation

    • Freezing

    • Sublimation

    Correct Answer
    A. Freezing
    Explanation
    Freezing is the correct answer because it refers to the change of state from a liquid to a solid. During freezing, the molecules in a substance slow down and arrange themselves into a rigid, organized structure, forming a solid. This process is opposite to melting, where a solid changes into a liquid, and different from condensation, which is the change from a gas to a liquid. Sublimation, on the other hand, is the direct transition from a solid to a gas, skipping the liquid phase.

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  • 3. 

    Substance that dissolves in a solvent

    • Solvent

    • Solute

    • Solution

    • Solubility

    Correct Answer
    A. Solute
    Explanation
    A solute is a substance that dissolves in a solvent to form a solution. In a solution, the solute particles are dispersed and evenly distributed throughout the solvent. The solute can be a solid, liquid, or gas, and it is typically present in a smaller quantity compared to the solvent. The solute and solvent interact at the molecular level, with the solvent molecules surrounding and separating the solute particles. This process is known as dissolution.

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  • 4. 

    The change of state from a liquid to a gas is ______________________.

    • Condensation

    • Evaporation

    • Sublimation

    • Melting

    Correct Answer
    A. Evaporation
    Explanation
    Evaporation refers to the process of a liquid changing into a gas state. It occurs when the molecules of a liquid gain enough energy to break free from the surface and enter the surrounding atmosphere as vapor. This process does not involve the formation of a new substance, but rather the transformation of the same substance from a liquid to a gas. Therefore, evaporation is the correct answer for the change of state from a liquid to a gas.

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  • 5. 

    A pure substance that cannot be separated into simpler substances by physical or chemical means

    • Metal

    • Element

    • Metalloid

    • Nonmetal

    Correct Answer
    A. Element
    Explanation
    An element is a pure substance that cannot be separated into simpler substances by physical or chemical means. This means that it consists of only one type of atom and cannot be broken down further. Metals, metalloids, and nonmetals are all categories of elements, but they can still be separated into simpler substances or have different properties. Therefore, the correct answer is element.

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  • 6. 

    Substance in which a solute dissolves

    • Solvent

    • Solute

    • Solution

    • Solubility

    Correct Answer
    A. Solvent
    Explanation
    A solvent is a substance in which a solute dissolves. When a solute is added to a solvent, it disperses evenly throughout the solvent, creating a solution. The solvent is typically present in a larger amount compared to the solute. The solute particles separate and are surrounded by the solvent particles, forming a homogeneous mixture. Solvents can be liquids, gases, or even solids, depending on the specific solute-solvent combination. They play a crucial role in various chemical and biological processes, such as dissolving medications in water or extracting compounds from natural sources.

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  • 7. 

    How is a mixture different from a compound?

    • Mixtures have two or more components.

    • Each substance in a mixture keeps its characteristic properties.

    • Mixtures are commonly found in nature.

    • Solids, liquids, and gases can form mixtures.

    Correct Answer
    A. Each substance in a mixture keeps its characteristic properties.
    Explanation
    A mixture is different from a compound because in a mixture, each substance retains its own characteristic properties. This means that the individual components of a mixture can be separated by physical means, such as filtration or evaporation, without undergoing any chemical changes. In contrast, compounds are formed through chemical reactions and have a fixed composition, where the elements are chemically bonded together.

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  • 8. 

    The pressure inside the bubbles of a boiling liquid

    • Endothermic

    • Exothermic

    • Vapor pressure

    • Change of state

    Correct Answer
    A. Vapor pressure
    Explanation
    Vapor pressure refers to the pressure exerted by the vapor molecules above a liquid in a closed system when the rate of evaporation equals the rate of condensation. In the context of boiling, the vapor pressure inside the bubbles of a boiling liquid is significant. When the vapor pressure of a liquid equals the atmospheric pressure, the liquid starts to boil. Boiling is an endothermic process as it requires energy to overcome the intermolecular forces and convert the liquid into vapor. Therefore, the correct answer is vapor pressure.

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  • 9. 

    One property of liquids is ______________________.

    • Viscosity

    • Mitrothermic

    • Exothermic

    • Endothermic

    Correct Answer
    A. Viscosity
    Explanation
    Viscosity is a property of liquids that refers to their resistance to flow. It is a measure of the internal friction within a liquid, determining how easily it can be poured or how quickly it can flow. Liquids with high viscosity, such as honey or syrup, flow slowly and have a thick consistency, while liquids with low viscosity, such as water or alcohol, flow easily and have a thin consistency. Therefore, viscosity is a characteristic property of liquids that helps to differentiate them from other states of matter.

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  • 10. 

    The change of a substance from one physical form to another

    • Endothermic

    • Exothermic

    • Vapor pressure

    • Change of state

    Correct Answer
    A. Change of state
    Explanation
    The term "change of state" refers to the transformation of a substance from one physical form to another, such as from a solid to a liquid or from a liquid to a gas. This process can occur through various mechanisms, such as melting, boiling, or condensation. The term does not specify whether the change is endothermic or exothermic, nor does it refer to the vapor pressure of the substance. It simply describes the alteration in the physical state of the substance.

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  • 11. 

    Combination of two or more substances that are not chemically combined

    • Mixture

    • Compound

    Correct Answer
    A. Mixture
    Explanation
    A mixture refers to a combination of two or more substances that are not chemically combined. In a mixture, the substances retain their individual properties and can be separated by physical means. This is different from a compound, where the substances are chemically combined and cannot be easily separated. Therefore, the correct answer is mixture.

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  • 12. 

    Sublimation is a change of state from a solid directly to a(n) ______________________.

    • Solid

    • Liquid

    • Gas

    • Super solid

    Correct Answer
    A. Gas
    Explanation
    Sublimation is a process in which a solid substance bypasses the liquid state and directly transforms into a gas. This occurs when the substance is heated, and the vapor pressure of the solid exceeds the atmospheric pressure. The molecules of the solid gain enough energy to break free from their fixed positions and enter the gas phase. Therefore, the correct answer is "gas."

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  • 13. 

    The change of state from a solid to a liquid

    • Melting

    • Evaporation

    • Condensation

    • Freezing

    Correct Answer
    A. Melting
    Explanation
    Melting refers to the change of state from a solid to a liquid. When a solid substance is heated, it gains enough energy to break its intermolecular bonds and transform into a liquid. This process is known as melting. The particles in the solid substance become more mobile and can move past one another, resulting in a change in physical state.

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  • 14. 

    A change in which energy is removed from the substance as it changes state

    • Endothermic

    • Mitrothermic

    • Exothermic

    • Superthermic

    Correct Answer
    A. Exothermic
    Explanation
    Exothermic refers to a change in which energy is released or given off from a substance as it undergoes a change in state. This means that during the process, the substance releases heat or energy to its surroundings. It is the opposite of endothermic, where energy is absorbed from the surroundings. Mitrothermic and superthermic are not recognized scientific terms, so they can be eliminated as options. Therefore, the correct answer is exothermic.

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  • 15. 

    An element that is shiny and that conducts heat and electric current well

    • Metal

    • Element

    • Metalloid

    • Nonmetal

    Correct Answer
    A. Metal
    Explanation
    The given description of an element that is shiny and conducts heat and electric current well aligns with the properties of a metal. Metals are known for their lustrous appearance and their ability to conduct heat and electricity due to the presence of free electrons in their atomic structure. Therefore, the correct answer is metal.

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  • 16. 

    A pure substance made of two or more elements that are chemically combined is called a(n) ______________________

    • Mixture

    • Compound

    • Alloy

    • Suspension

    Correct Answer
    A. Compound
    Explanation
    A compound is a pure substance made of two or more elements that are chemically combined. In a compound, the elements are bonded together in a fixed ratio, which gives the compound its unique properties. Compounds can be represented by chemical formulas and can only be separated into their constituent elements through chemical reactions. This distinguishes compounds from mixtures, which are combinations of substances that are not chemically bonded and can be separated by physical means.

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  • 17. 

    The particles in both a suspension and a colloid can

    • Scatter light.

    • Settle out.

    • Be soluble.

    • Pass through a fine filter.

    Correct Answer
    A. Scatter light.
    Explanation
    Both suspensions and colloids consist of particles that are larger than individual molecules but smaller than visible particles. These particles are dispersed throughout a medium, such as a liquid or gas. When light passes through these dispersed particles, it gets scattered in different directions, causing the phenomenon known as scattering of light. Therefore, the correct answer is that the particles in both a suspension and a colloid can scatter light.

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  • 18. 

    In a(n) ______________________ change, energy is added to a substance.

    • Viscosity

    • Mitrothermic

    • Exothermic

    • Endothermic

    Correct Answer
    A. Endothermic
    Explanation
    In an endothermic change, energy is added to a substance. This means that the substance absorbs heat or energy from its surroundings, causing its temperature to decrease. This type of change is often associated with processes such as melting, evaporation, or chemical reactions that require energy input to occur.

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  • 19. 

    The change of state from a liquid to a gas

    • Melting

    • Evaporation

    • Condensation

    • Sublimation

    Correct Answer
    A. Evaporation
    Explanation
    Evaporation is the process of a liquid changing into a gas. It occurs when the molecules of a liquid gain enough energy to break free from the liquid's surface and become vapor. This is different from other options like melting, which is the change of state from a solid to a liquid, and condensation, which is the change of state from a gas to a liquid. Sublimation, on the other hand, is the direct transition from a solid to a gas without passing through the liquid state. Therefore, evaporation is the most appropriate term to describe the change of state from a liquid to a gas.

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  • 20. 

    The drops of water that appear on the outside of a glass of cold juice on a  warm day are an example of ______________________.

    • Condensation

    • Evaporation

    • Sublimation

    • Melting

    Correct Answer
    A. Condensation
    Explanation
    The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of condensation. This occurs when the warm air comes into contact with the cold surface of the glass, causing the water vapor in the air to cool and change into liquid form.

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  • 21. 

    An element that conducts heat and electricity poorly and is dull in appearance

    • Metal

    • Element

    • Metalloid

    • Nonmetal

    Correct Answer
    A. Nonmetal
    Explanation
    Nonmetals are elements that typically conduct heat and electricity poorly and have a dull appearance. They are generally brittle and lack the luster of metals. Unlike metals, nonmetals tend to be poor conductors of heat and electricity due to their atomic structure, which lacks the free electrons necessary for efficient conduction. Examples of nonmetals include carbon, oxygen, nitrogen, and sulfur. They are an essential part of the periodic table and play a crucial role in various chemical reactions and biological processes.

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  • 22. 

    The change of a liquid to a vapor throughout the liquid

    • Evaporation

    • Boiling

    • Melting

    • Sublimation

    Correct Answer
    A. Boiling
    Explanation
    Boiling is the correct answer because it refers to the process of a liquid changing into a vapor throughout the entire liquid. During boiling, the liquid is heated to its boiling point, which causes the molecules to gain enough energy to break free from the liquid and become a gas. This process is different from evaporation, which occurs at the surface of a liquid, and melting, which is the change from a solid to a liquid. Sublimation refers to the direct change from a solid to a gas without becoming a liquid first.

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  • 23. 

    Boyle’s law states that for a fixed amount of gas

    • At a constant temperature, the volume of the gas is inversely related to pressure.

    • At a constant temperature, the volume of the gas is directly related to pressure.

    • At a constant pressure, the volume of the gas is directly related to temperature.

    • At a constant pressure, the volume of the gas is inversely related to temperature.

    Correct Answer
    A. At a constant temperature, the volume of the gas is inversely related to pressure.
    Explanation
    Boyle's law states that the volume of a gas is inversely related to its pressure at a constant temperature. This means that as the pressure on a gas increases, its volume decreases, and vice versa, as long as the temperature remains constant. This relationship can be explained by the behavior of gas molecules. When the pressure on a gas is increased, the molecules are forced closer together, resulting in a decrease in volume. Conversely, when the pressure is decreased, the molecules have more space to move around, leading to an increase in volume.

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  • 24. 

    When materials combine to form a mixture, they

    • Keep their original properties.

    • React to form a new substance with new properties.

    • Combine in a specific ratio.

    • Always change their physical state.

    Correct Answer
    A. Keep their original properties.
    Explanation
    When materials combine to form a mixture, they keep their original properties. This means that the individual substances in the mixture do not undergo any chemical reactions or changes in their composition. Instead, they simply mix together physically, resulting in a combination of their original properties. This is why mixtures can be separated through physical methods such as filtration or evaporation. The substances within the mixture retain their own characteristics and can be easily identified and distinguished.

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  • 25. 

    The way a balloon decreases in volume when the temperature is decreased illustrates ______________________.

    • Boyle's Law

    • Newton's Law

    • Charles' Law

    • Mr. Knickelbein's Law

    Correct Answer
    A. Charles' Law
    Explanation
    Charles' Law states that the volume of a gas is directly proportional to its temperature, assuming that the pressure and amount of gas remain constant. When the temperature of a balloon is decreased, the gas particles inside the balloon slow down, causing them to move closer together. This decrease in temperature leads to a decrease in volume, which is in accordance with Charles' Law.

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  • 26. 

    Machine that separates mixtures by the densities of the components

    • Colloid

    • Suspension

    • Centrifuge

    • Distillation

    Correct Answer
    A. Centrifuge
    Explanation
    A centrifuge is a machine that separates mixtures by the densities of the components. It works by spinning the mixture at high speeds, causing the heavier components to move towards the outer edge while the lighter components stay closer to the center. This separation is possible because the centrifugal force generated by the spinning motion causes the denser components to move outward. As a result, a centrifuge is commonly used in laboratories and industries for various applications such as separating solid particles from liquids or separating different components of a mixture based on their densities.

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  • 27. 

    A change in which energy is gained by a substance as it changes state

    • Viscosity

    • Mitrothermic

    • Exothermic

    • Endothermic

    Correct Answer
    A. Endothermic
    Explanation
    Endothermic refers to a change in which energy is gained by a substance as it changes state. This means that during the change, the substance absorbs heat from its surroundings, resulting in a decrease in temperature. This process is characterized by an increase in the potential energy of the particles involved, as they absorb energy to overcome intermolecular forces and transition to a higher energy state.

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  • 28. 

    Amount of a substance in a given quantity of a mixture, solution, or ore

    • Centrifuge

    • Concentration

    • Distillation

    • Solubility

    Correct Answer
    A. Concentration
    Explanation
    Concentration refers to the amount of a substance present in a given quantity of a mixture, solution, or ore. It is a measure of how much of a particular substance is dissolved or dispersed in a given volume or mass of a solvent or mixture. Concentration can be expressed in various units such as molarity, mass/volume percent, or parts per million. It is an important concept in chemistry and is used to determine the strength or potency of a solution or the purity of a substance.

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  • 29. 

    Solid solutions of metals or nonmetals dissolved in metals are called ______________________

    • Solvents

    • Solutions

    • Alloys

    • Suspensions

    Correct Answer
    A. Alloys
    Explanation
    Solid solutions of metals or nonmetals dissolved in metals are called alloys. Alloys are formed when two or more elements are mixed together, with one element being a metal. The atoms of the different elements in an alloy are evenly distributed throughout the material, resulting in a homogeneous mixture. Alloys often exhibit unique properties and characteristics that are different from the individual elements they are composed of, making them useful in various applications such as construction, manufacturing, and electronics.

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  • 30. 

    A colloid has the properties of solutions and______________________

    • Solvents

    • Solutions

    • Alloys

    • Suspensions

    Correct Answer
    A. Suspensions
    Explanation
    A colloid has the properties of solutions and suspensions. Solutions are homogeneous mixtures where the solute particles are evenly distributed and do not settle, while suspensions are heterogeneous mixtures where the solute particles are larger and tend to settle over time. Colloids, on the other hand, have particles that are intermediate in size between those in solutions and suspensions. These particles do not settle, but they are not evenly distributed like in solutions. Therefore, colloids exhibit the properties of both solutions and suspensions.

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  • 31. 

    Mixture consisting of tiny particles that are intermediate in size between those in ­solutions and those in suspensions

    • Colloid

    • Suspension

    • Centrifuge

    • Distillation

    Correct Answer
    A. Colloid
    Explanation
    A colloid is a mixture that contains small particles that are larger than the particles in a solution but smaller than the particles in a suspension. The particles in a colloid do not settle out over time and are evenly distributed throughout the mixture. This is different from a suspension where the particles are larger and will settle out over time. A centrifuge is a device used to separate mixtures by spinning them at high speeds, while distillation is a process used to separate mixtures based on differences in boiling points.

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  • 32. 

    If a spoonful of salt is mixed in a glass of water, the salt is the ______________________

    • Solute

    • Solution

    • Solvent

    • Suspension

    Correct Answer
    A. Solute
    Explanation
    When a spoonful of salt is mixed in a glass of water, the salt dissolves in the water, forming a homogeneous mixture. In this case, the salt is the solute, which is the substance being dissolved, while the water is the solvent, the substance in which the solute dissolves. Therefore, the correct answer is solute.

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  • 33. 

    The change of state from a solid directly to a gas

    • Melting

    • Evaporation

    • Condensation

    • Sublimation

    Correct Answer
    A. Sublimation
    Explanation
    Sublimation refers to the change of state from a solid directly to a gas, without passing through the liquid phase. This process occurs when the substance's vapor pressure is higher than its melting point, causing it to transition from a solid to a gas. Examples of substances that undergo sublimation include dry ice (solid carbon dioxide) and mothballs (solid naphthalene).

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  • 34. 

    Homogeneous mixture of two or more substances uniformly dispersed throughout a single phase

    • Compound

    • Mixture

    • Solution

    • Distillation

    Correct Answer
    A. Solution
    Explanation
    A solution is a homogeneous mixture of two or more substances uniformly dispersed throughout a single phase. In a solution, the solute particles are evenly distributed and cannot be easily separated from the solvent. This is different from a compound, which is a substance formed by the chemical combination of two or more elements. A mixture refers to a combination of substances that are physically mixed together but not chemically bonded. Distillation, on the other hand, is a process used to separate the components of a mixture based on their different boiling points.

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  • 35. 

    The change of state from a gas to a liquid

    • Melting

    • Evaporation

    • Sublimation

    • Condensation

    Correct Answer
    A. Condensation
    Explanation
    Condensation refers to the change of state from a gas to a liquid. This process occurs when the temperature of a gas decreases, causing the gas particles to lose energy and come closer together. As a result, the gas particles slow down and form liquid droplets. This can be observed in everyday situations, such as when water vapor in the air cools and forms dew on grass or when steam from a hot shower turns into water droplets on a cold mirror. Therefore, condensation is the correct answer to the given question.

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  • 36. 

    Ability of one substance to dissolve in another at a given temperature and pressure

    • Centrifuge

    • Concentration

    • Distillation

    • Solubility

    Correct Answer
    A. Solubility
    Explanation
    Solubility refers to the ability of one substance to dissolve in another at a given temperature and pressure. It is a measure of how well a solute can dissolve in a solvent. The solubility of a substance is influenced by factors such as temperature, pressure, and the nature of the solute and solvent. When a substance has high solubility, it means that it can dissolve easily in a given solvent, while low solubility indicates that the substance does not dissolve well in the solvent. Solubility is an important concept in chemistry and is used to understand and predict the behavior of substances in solutions.

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  • 37. 

    Process that separates a mixture based on the boiling points of the components

    • Colloid

    • Suspension

    • Centrifuge

    • Distillation

    Correct Answer
    A. Distillation
    Explanation
    Distillation is the correct answer because it is a process that separates a mixture based on the boiling points of the components. In distillation, the mixture is heated, and the component with the lower boiling point vaporizes first, while the component with the higher boiling point remains in liquid form. The vapor is then condensed and collected, resulting in the separation of the components. This process is commonly used in industries such as oil refining and alcohol production.

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  • 38. 

    Mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas

    • Colloid

    • Suspension

    • Centrifuge

    • Distillation

    Correct Answer
    A. Suspension
    Explanation
    A suspension is a type of mixture where particles of a material are evenly dispersed throughout a liquid or gas. In a suspension, the particles are larger and do not dissolve in the liquid or gas, but instead remain suspended and can be seen with the naked eye. This is different from a colloid, where the particles are smaller and remain dispersed but cannot be easily seen. A centrifuge is a device used to separate mixtures by spinning them at high speeds, while distillation is a process used to separate liquids based on their boiling points.

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  • 39. 

    Particles of two or more substances that are distributed evenly among each other form a(n).______________________

    • Solvent

    • Solution

    • Alloy

    • Suspension

    Correct Answer
    A. Solution
    Explanation
    When particles of two or more substances are distributed evenly among each other, they form a solution. In a solution, the substance that is present in the largest amount is called the solvent, while the substances that are present in smaller amounts and dissolved in the solvent are called solutes. The particles of the solute are evenly dispersed and do not settle out over time, resulting in a homogeneous mixture.

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  • Feb 25, 2024
    Quiz Edited by
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  • Nov 03, 2011
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    Mknickelbein
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