Key Terms For Chemical Building Blocks Chapter 1 Section 1
CORRECTLY ANSWER ALL ITEMS
- 1.
Anything that has mass and occupies space is ________.
Explanation
Matter refers to anything that has mass and takes up space. It includes both tangible objects and substances, such as solids, liquids, and gases. Matter is made up of atoms and molecules, and it can undergo physical and chemical changes. Therefore, the correct answer to the question is "matter."Rate this question:
- 2.
_______ is the study of the properties of matter and how matter changes.
Explanation
Chemistry is the study of the properties of matter and how matter changes. It involves the investigation of the composition, structure, properties, and reactions of substances. By studying chemistry, scientists can gain a better understanding of the world around us and develop new materials and technologies.Rate this question:
- 3.
_______ is a single kind of matter that is pure and has a specific set of properties.
Explanation
A substance refers to a single kind of matter that is pure and has specific properties. It can be an element or a compound, and it cannot be separated into simpler components by physical means. Substances have distinct characteristics, such as a fixed melting point, boiling point, and chemical composition. They can exist in different states, such as solid, liquid, or gas, and can undergo physical or chemical changes.Rate this question:
- 4.
Physical property
- A.
Is a single kind of matter that is pure and has a specific set of properties.
- B.
Is the study of the properties of matter and how matter changes.
- C.
A characteristic of a pure substance that can be observed without changing it into another substance.
- D.
A pure substance that cannot be broken down into other substances by chemical or physical means.
Correct Answer
C. A characteristic of a pure substance that can be observed without changing it into another substance.Explanation
The correct answer is "A characteristic of a pure substance that can be observed without changing it into another substance." This answer accurately describes a physical property, which refers to a characteristic or attribute of a substance that can be observed or measured without changing the substance's chemical composition. Physical properties include characteristics such as color, density, melting point, boiling point, and conductivity. These properties help to identify and classify different substances.Rate this question:
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- 5.
Atom
- A.
Is the study of the properties of matter and how matter
- B.
A characteristic of a pure substance that can be observed
- C.
A pure substance that cannot be broken down into other substances by chemical or physical means.
- D.
The basic particle from which all elements are made.
Correct Answer
D. The basic particle from which all elements are made. -
- 6.
chemical bond
- A.
A pure substance that cannot be broken down into other substances by chemical or physical means.
- B.
The basic particle from which all elements are made.
- C.
The force that holds two atoms together.
- D.
A characteristic of a pure substance that can be observed
Correct Answer
C. The force that holds two atoms together.Explanation
The correct answer is "The force that holds two atoms together." This answer accurately describes a chemical bond, which is the force that holds two atoms together in a molecule. Chemical bonds are formed when atoms share or transfer electrons to achieve a stable electron configuration. This force is responsible for the formation and stability of compounds.Rate this question:
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- 7.
chemical property
- A.
A characteristic of a pure substance that can be observed
- B.
A characteristic of a pure substance that describes its ability to change into a different substance.
- C.
The force that holds two atoms together.
- D.
The basic particle from which all elements are made.
Correct Answer
B. A characteristic of a pure substance that describes its ability to change into a different substance. -
- 8.
Element
- A.
A pure substance that cannot be broken down into other substances by chemical or physical means.
- B.
The basic particle from which all elements are made.
- C.
A characteristic of a pure substance that describes its ability to change into a different substance.
- D.
A characteristic of a pure substance that can be observed
Correct Answer
A. A pure substance that cannot be broken down into other substances by chemical or pHysical means.Explanation
The given answer is the correct definition of an element. An element is a pure substance that cannot be broken down into other substances by chemical or physical means. This means that elements are the simplest form of matter and are made up of only one type of atom. They cannot be further broken down or separated into simpler substances. This definition distinguishes elements from compounds, which are made up of two or more different elements chemically combined.Rate this question:
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- 9.
molecule
- A.
A characteristic of a pure substance that can be observed
- B.
A characteristic of a pure substance that describes its ability to change into a different substance.
- C.
The basic particle from which all elements are made.
- D.
A particle made of two or more atoms bonded together.
Correct Answer
D. A particle made of two or more atoms bonded together.Explanation
The correct answer is "A particle made of two or more atoms bonded together." This is because a molecule is defined as a particle that consists of two or more atoms that are chemically bonded together. This definition distinguishes a molecule from an atom, which is the basic particle from which all elements are made. Therefore, the answer accurately describes the nature of a molecule.Rate this question:
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- 10.
Compound
- A.
A pure substance made of two or more elements chemically combined.
- B.
A particle made of two or more atoms bonded together.
- C.
The basic particle from which all elements are made.
- D.
A characteristic of a pure substance that can be observed
Correct Answer
A. A pure substance made of two or more elements chemically combined.Explanation
The correct answer is "A pure substance made of two or more elements chemically combined." This is because a compound is a substance that is composed of two or more different elements that are chemically bonded together. This definition distinguishes compounds from mixtures, which are combinations of substances that are not chemically bonded. Therefore, a compound can be considered a pure substance because it has a definite composition and properties that are different from its constituent elements.Rate this question:
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- 11.
chemical formula
- A.
A characteristic of a pure substance that can be observed
- B.
A particle made of two or more atoms bonded together.
- C.
A pure substance made of two or more elements chemically combined.
- D.
A formula that gives the elements in a compound and the ratio of atoms.
Correct Answer
D. A formula that gives the elements in a compound and the ratio of atoms.Explanation
The given answer correctly defines a chemical formula as a representation that shows the elements present in a compound and the ratio of atoms of each element. A chemical formula provides valuable information about the composition of a compound and helps in understanding its structure and properties. It is a concise and standardized way of representing the chemical makeup of a substance.Rate this question:
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- 12.
Mixture
- A.
Two or more substances that are mixed together but not chemically combined.
- B.
A formula that gives the elements in a compound and the ratio
- C.
A particle made of two or more atoms bonded together.
- D.
A characteristic of a pure substance that can be observed
Correct Answer
A. Two or more substances that are mixed together but not chemically combined.Explanation
The given answer correctly defines a mixture as two or more substances that are mixed together but not chemically combined. In a mixture, the substances retain their individual properties and can be separated by physical means such as filtration or evaporation. This is different from a compound, where the elements are chemically combined and cannot be easily separated. The answer accurately captures the essence of a mixture and distinguishes it from other concepts mentioned in the question.Rate this question:
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- 13.
heterogeneous mixture
- A.
A characteristic of a pure substance that can be observed
- B.
A particle made of two or more atoms bonded together.
- C.
A formula that gives the elements in a compound and the ratio
- D.
A mixture in which pure substances are unevenly distributed throughout the mixture.
Correct Answer
D. A mixture in which pure substances are unevenly distributed throughout the mixture. -
- 14.
Homogeneous mixture
- A.
A mixture in which pure substances are unevenly distributed throughout the mixture.
- B.
A mixture in which substances are evenly distributed throughout the mixture.
- C.
A formula that gives the elements in a compound and the ratio
- D.
A characteristic of a pure substance that can be observed
Correct Answer
B. A mixture in which substances are evenly distributed throughout the mixture.Explanation
The correct answer is "A mixture in which substances are evenly distributed throughout the mixture." This means that in a homogeneous mixture, the different components are spread out uniformly and cannot be easily distinguished from one another. This is in contrast to a heterogeneous mixture, where the different substances are not evenly distributed and can be seen as separate phases or regions within the mixture.Rate this question:
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- 15.
Solution
- A.
A mixture in which substances are evenly distributed throughout the mixture.
- B.
A formula that gives the elements in a compound and the ratio
- C.
An example of a homogeneous mixture; forms when substances dissolve.
- D.
A characteristic of a pure substance that can be observed
Correct Answer
C. An example of a homogeneous mixture; forms when substances dissolve.Explanation
This answer is the only one that accurately describes a homogeneous mixture. A homogeneous mixture is one in which the substances are evenly distributed throughout the mixture, and it forms when substances dissolve. The other options do not accurately describe a homogeneous mixture.Rate this question:
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Mar 16, 2023Quiz Edited by
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Sep 07, 2011Quiz Created by
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