Chemistry Chapter 1 Review
Questions and Answers
- 1.
What is Quantitaive?
- A.
With numbers
- B.
Without numbers
- C.
Anything that has mass and volume
- D.
Quantity of an object
Correct Answer
A. With numbersExplanation
The term "Quantitative" refers to something that involves or is expressed in numbers. It implies the use of numerical data or measurements to analyze or describe a particular phenomenon or object. In this context, the correct answer is "With numbers" as it accurately captures the essence of quantitative analysis or description.Rate this question:
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- 2.
What is Qualitative?
- A.
Without numbers (number and unit isn't needed)
- B.
With numbers
- C.
Special qualitys
- D.
The space of an object
Correct Answer
A. Without numbers (number and unit isn't needed)Explanation
Qualitative refers to information or data that is descriptive in nature and does not involve numerical measurements or units. It focuses on the qualities, characteristics, or attributes of something rather than quantifying it. This type of information provides a deeper understanding of the subject and is often gathered through observations, interviews, or textual analysis.Rate this question:
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- 3.
What is matter?
- A.
Anything that has mass and volume
- B.
The defined as the force produced by gravity
- C.
The space an object occupies
- D.
Produced number
Correct Answer
A. Anything that has mass and volumeExplanation
The correct answer is "anything that has mass and volume." This answer accurately defines matter as anything that has both mass (which is the measure of the amount of matter in an object) and volume (which is the amount of space an object occupies). Matter can exist in different states such as solid, liquid, or gas, and it includes everything around us, from living organisms to inanimate objects.Rate this question:
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- 4.
Volume?
- A.
Density
- B.
The space the object occupies
- C.
No fixed volume
Correct Answer
B. The space the object occupiesExplanation
The correct answer is "The space the object occupies." This is because volume is a measurement of the amount of space an object occupies. It is a property of matter that describes the three-dimensional size of an object. The volume of an object can be determined by measuring its dimensions and calculating the amount of space it occupies. Density, on the other hand, is a measure of how much mass is contained within a given volume. While density is related to volume, it is not the same thing as volume itself.Rate this question:
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- 5.
What is Mass?
- A.
Substances that are distrubuted uniformly
- B.
Property
- C.
The measure of the amount of matter in an object
Correct Answer
C. The measure of the amount of matter in an objectExplanation
Mass is the measure of the amount of matter in an object. It is a property that describes the quantity of matter present in an object, regardless of its volume or shape. Mass is a fundamental concept in physics and is usually measured in kilograms. It determines the object's resistance to changes in motion and is different from weight, which depends on the gravitational force acting on the object.Rate this question:
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- 6.
Weight?
- A.
The force produced by gravity acting on mass
- B.
The space an objecet occupies
- C.
Property of matter that can only be identified by trying to cause a chemical change
Correct Answer
A. The force produced by gravity acting on massExplanation
The correct answer is "the force produced by gravity acting on mass." Weight is the measure of the force of gravity acting on an object's mass. It is a result of the gravitational attraction between the object and the Earth (or any other celestial body). Weight can be calculated using the equation W = mg, where W is the weight, m is the mass of the object, and g is the acceleration due to gravity.Rate this question:
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- 7.
What is a chemical change
- A.
The process by which one or more substances change to produce 1 or more different substances
- B.
Something that changes
- C.
Something that does not change what the object is
- D.
The identity of a substance
Correct Answer
A. The process by which one or more substances change to produce 1 or more different substancesExplanation
A chemical change refers to the process in which one or more substances undergo a transformation and result in the formation of one or more different substances. This change involves a rearrangement of atoms and molecules, leading to a change in the chemical properties and composition of the substances involved. It is characterized by the formation of new chemical bonds and the release or absorption of energy.Rate this question:
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- 8.
What is a Physical Change?
- A.
Changes in which the identity of a substance doesn't change
- B.
Property of a matter that can only be identified by trying to cause a chemical change
- C.
The idenitity of a substance doesn't change
Correct Answer
A. Changes in which the identity of a substance doesn't changeExplanation
A physical change refers to changes in matter that do not alter the identity of the substance involved. In other words, the chemical composition of the substance remains the same before and after the change. Physical changes can include processes such as melting, freezing, boiling, and dissolving, where the state or form of the substance may change, but its chemical properties remain unchanged.Rate this question:
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- 9.
What is Chemical Property?
- A.
Property of matter that can only be identified by trying to cause a chemical change
- B.
The ratio of the mass of a substance to the volumme of a substance
- C.
Anything that has mass and volume
Correct Answer
A. Property of matter that can only be identified by trying to cause a chemical changeExplanation
Chemical property refers to a characteristic of a substance that can only be observed or identified by attempting to cause a chemical change. This means that the property can only be determined by conducting experiments or reactions that result in a change in the substance's chemical composition. It is different from physical properties, which can be observed without altering the chemical makeup of the substance. Chemical properties are important in understanding the behavior and reactivity of substances in various chemical processes.Rate this question:
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- 10.
What is Physical Property?
- A.
Property that can be identified without changing the nature of a substance
- B.
The ratio of the mass of a substance
- C.
Changes in which the identity of a substance changes
Correct Answer
A. Property that can be identified without changing the nature of a substanceExplanation
A physical property is a characteristic of a substance that can be observed or measured without changing the substance's chemical composition. This means that the property can be identified or determined without altering the nature of the substance itself. Examples of physical properties include color, density, melting point, boiling point, and conductivity. By studying these properties, scientists can gain insight into the behavior and characteristics of different substances.Rate this question:
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- 11.
What is Density?
- A.
The ratio of the mass of a substance to the volume of a substance
- B.
D= m/m
- C.
A pure substance only contains 1 pure substance, mixture contains 2
Correct Answer
A. The ratio of the mass of a substance to the volume of a substanceExplanation
Density is a physical property that describes the compactness of a substance. It is calculated by dividing the mass of a substance by its volume. The answer correctly states that density is the ratio of the mass of a substance to the volume of a substance. It also mentions that a pure substance only contains one pure substance, while a mixture contains two or more substances.Rate this question:
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- 12.
What is the main difference between a chemical change and a physical change?
Correct Answer
In physical changes, the identity of a substance doesn't change , in chemical , the identity changes and forms a new substanceExplanation
The main difference between a chemical change and a physical change is that in a physical change, the identity of a substance remains the same, while in a chemical change, the identity of the substance changes and forms a new substance. In physical changes, only the physical properties of the substance, such as shape, size, or state, are altered, but the chemical composition remains unchanged. In contrast, in chemical changes, the atoms rearrange and bond differently, resulting in the formation of a new substance with different chemical properties.Rate this question:
- 13.
Butane and oxygen form carbon dioxide and water when mixed. What are the Reactants and the products in this reaction?
Correct Answer
Reactants are Butane and Oxygen. Products are Carbon Dioxide and Water.Explanation
The given answer correctly identifies the reactants and products in the reaction. Reactants are the substances that undergo a chemical change, while products are the new substances formed as a result of the reaction. In this case, butane and oxygen are the reactants, and carbon dioxide and water are the products.Rate this question:
- 14.
H2O + CaO --> Ca(Oh)2 . What are the reactants and products in this reaction?
Correct Answer
Reactants are H20 and CaO. Products are Ca(Oh)2Explanation
The given chemical equation represents a reaction between water (H2O) and calcium oxide (CaO), which results in the formation of calcium hydroxide (Ca(OH)2). In this reaction, H2O and CaO are the reactants, while Ca(OH)2 is the product.Rate this question:
- 15.
Calcum oixide is created when calcium and oxygen are combined. What are the Reactants and Products in this reaction?
Correct Answer
Calcium and oxygen are the reactans. Calcium oixide is the productExplanation
In this reaction, calcium and oxygen are the reactants because they are the substances that undergo a chemical change. When calcium and oxygen combine, they form calcium oxide, which is the product of the reaction. The reactants are the starting materials, while the product is the result of the chemical reaction.Rate this question:
- 16.
How is a pure substance different from a mixture?
Correct Answer
A pure substance only contains 1 pure substance, mixture contains 2Explanation
A pure substance is a material that is made up of only one type of particle or molecule. It has a constant composition and distinct properties. On the other hand, a mixture is a combination of two or more substances that are physically mixed together but not chemically combined. A mixture can have varying compositions and properties, depending on the ratio of the substances present. Therefore, the correct answer is that a pure substance only contains one pure substance, while a mixture contains two or more substances.Rate this question:
- 17.
What are the two main types of a pure substance?
Correct Answer
Elements and compoundsExplanation
Elements and compounds are the two main types of a pure substance. An element is a substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom. Examples of elements include oxygen, hydrogen, and carbon. On the other hand, a compound is a substance formed by the chemical combination of two or more elements in a fixed ratio. Compounds have properties that are different from the elements that make them up. Examples of compounds include water (H2O) and carbon dioxide (CO2).Rate this question:
- 18.
How are elements and compounds different from each other?
Correct Answer
Compounds are pure substances that contain more than 1 kind of atom, elements have 1Explanation
Elements and compounds are different from each other based on their composition. Compounds are pure substances that are formed when two or more different elements chemically combine. They contain more than one kind of atom. On the other hand, elements are pure substances that consist of only one kind of atom. They cannot be broken down into simpler substances by chemical means. Therefore, the main distinction between elements and compounds lies in the number of different atoms present in each substance.Rate this question:
- 19.
What are the two main types of mixtures?
Correct Answer
Homogeneous and HeterogeneousExplanation
Homogeneous and heterogeneous are the two main types of mixtures. Homogeneous mixtures have a uniform composition throughout, meaning that the components are evenly distributed and not easily distinguishable. Examples of homogeneous mixtures include saltwater and air. On the other hand, heterogeneous mixtures have a non-uniform composition, where the components are not evenly distributed and can be easily distinguished. Examples of heterogeneous mixtures include salad dressing and granite.Rate this question:
- 20.
How are Homogeneous and Heterogeneous different from each other?
Correct Answer
In a homogeneous , the pure substances are distributed uniformly throughout the mixture . Heterogeneous is not evenly mixed.Explanation
Homogeneous and heterogeneous mixtures differ in the distribution of pure substances throughout the mixture. In a homogeneous mixture, the pure substances are uniformly distributed, meaning that they are evenly mixed and cannot be visually distinguished. On the other hand, a heterogeneous mixture is not evenly mixed, and the pure substances are not uniformly distributed. This means that in a heterogeneous mixture, the different components can be visually identified and are not evenly spread throughout the mixture.Rate this question:
- 21.
What unit expresses volume most commonly?
Correct Answer
MLExplanation
The unit ML stands for milliliters, which is the most commonly used unit to express volume. Milliliters are often used to measure small amounts of liquid, such as medication or cooking ingredients. It is a metric unit of volume and is equal to one-thousandth of a liter.Rate this question:
- 22.
What unit expressed length?
Correct Answer
meterExplanation
The unit "meter" is used to express length. It is a commonly used unit in the metric system to measure distances and dimensions.Rate this question:
- 23.
What unit expresses Kilogram?
Correct Answer
KilogramExplanation
The unit that expresses Kilogram is Kilogram. This means that Kilogram is its own unit of measurement and is used to quantify mass.Rate this question:
- 24.
1 Kilogram is = to ___ grams?
Correct Answer
1000Explanation
The metric system is based on powers of 10, so in this case, 1 kilogram is equal to 1000 grams. The prefix "kilo-" denotes a factor of 1000, so when converting from kilograms to grams, we multiply by 1000. Therefore, the correct answer is 1000 grams.Rate this question:
- 25.
What is the formula for density?
Correct Answer
d= m/vExplanation
The formula for density is given as d = m/v, where d represents density, m represents mass, and v represents volume. This formula is derived from the concept that density is the measure of how much mass is contained within a given volume. By dividing the mass of an object by its volume, we can determine its density. Therefore, the given answer is correct.Rate this question:
- 26.
1000 g= _____kg
Correct Answer
1Explanation
The question is asking for the equivalent value of 1000 grams in kilograms. Since there are 1000 grams in 1 kilogram, the correct answer is 1 kilogram.Rate this question:
- 27.
1000 mg = ___g
Correct Answer
1Explanation
The question is asking for the conversion of 1000 mg to grams. Since there are 1000 milligrams in a gram, the correct answer is 1 gram.Rate this question:
- 28.
1km = ____ m?
Correct Answer
1000Explanation
The given equation is a conversion factor between kilometers and meters. Since 1 kilometer is equal to 1000 meters, the correct answer is 1000.Rate this question:
- 29.
1 m =____mm
Correct Answer
1000Explanation
The answer is 1000 because there are 1000 millimeters in one meter.Rate this question:
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Mar 21, 2023Quiz Edited by
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Aug 19, 2012Quiz Created by
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