Nature Of Matter Quiz

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1. Chemical properties can be observed when one substance reacts with another.

Explanation

Chemical properties refer to the behavior of a substance when it undergoes a chemical reaction with another substance. These properties can only be observed when substances interact and result in a chemical change. Therefore, it is true that chemical properties can be observed when one substance reacts with another.

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About This Quiz
Nature Of Matter Quiz - Quiz

The Nature of Matter Quiz explores fundamental concepts in chemistry, focusing on the properties and behavior of matter. It assesses understanding of atoms, molecules, energy, and the distinction between matter and non-matter, providing a valuable learning tool for students.

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2. Solids have a fixed volume and shape. 

Explanation

Solids have a fixed volume and shape because the particles in a solid are closely packed together and vibrate in fixed positions. This arrangement gives solids a definite shape and volume, as the particles cannot move freely like in liquids or gases. The strong intermolecular forces between the particles keep them in place, maintaining the solid's shape and preventing it from easily changing its volume. Therefore, the statement that solids have a fixed volume and shape is true.

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3. The density of a substance is equal to its mass divided by its volume.

Explanation

The density of a substance is determined by dividing its mass by its volume. Density is a measure of how much mass is contained within a given volume. By dividing the mass of a substance by its volume, we can calculate its density. Therefore, the statement that the density of a substance is equal to its mass divided by its volume is true.

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4. An atom is the smallest particle of matter that has the properties of a particular element. 

Explanation

An atom is indeed the smallest particle of matter that retains the properties of a particular element. Atoms are composed of protons, neutrons, and electrons, and they cannot be broken down further without losing their elemental properties. This fundamental unit of matter is responsible for the unique characteristics and behavior of each element.

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5. The formula for density is: Density equals mass over volume 

Explanation

The formula for density is indeed "Density equals mass over volume." This means that to calculate the density of an object, you divide its mass by its volume. Density is a measure of how much mass is contained within a given volume, so the formula accurately represents this relationship. Therefore, the correct answer is true.

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6. Changes of state, including melting, subliming, evaporating, boiling, condensing and freezing, are physical changes. 

Explanation

Changes of state refer to the transformation of matter from one state to another, such as from solid to liquid, liquid to gas, or vice versa. These changes do not involve any chemical reactions and the composition of the substance remains the same. Therefore, they are considered physical changes.

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7. Liquids have a fixed volume and fixed shape. 

Explanation

Liquids do not have a fixed shape, but they do have a fixed volume. Unlike solids, liquids can flow and take the shape of their container. Therefore, the statement that liquids have a fixed shape is incorrect.

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8. Physical properties can be observed or measured without changing the composition of matter. 

Explanation

Physical properties are characteristics of matter that can be observed or measured without altering the substance's chemical composition. This means that even though physical properties can be observed or measured, they do not involve any chemical reactions or changes in the substance's molecular structure. Examples of physical properties include color, shape, size, density, melting point, boiling point, and conductivity. Since physical properties can be observed or measured without changing the composition of matter, the statement "Physical properties can be observed or measured without changing the composition of matter" is true.

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9. Na, Sodium, is a pure substance.

Explanation

Na, which stands for sodium, is a chemical element that exists as a pure substance. It is a highly reactive metal and is commonly found in compounds rather than in its pure form in nature. Therefore, the statement "Na, Sodium, is a pure substance" is true.

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10. Fe, Iron, is a pure substance.

Explanation

Iron (Fe) is a pure substance because it is an element that consists of only one type of atom. Pure substances have a fixed composition and cannot be separated into simpler substances by physical means. Iron is a solid metal that is commonly found in ores and is widely used in various industries due to its strength and durability. Therefore, the statement "Fe, Iron, is a pure substance" is true.

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11. Chemistry is the study of matter and how it changes.

Explanation

Chemistry is indeed the study of matter and how it changes. It focuses on the composition, structure, properties, and reactions of substances, as well as the energy changes that occur during these processes. By studying chemistry, scientists are able to understand and explain various phenomena in the physical world, from the behavior of elements and compounds to the formation of new substances. Therefore, the statement "Chemistry is the study of matter and how it changes" is accurate.

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12. Energy is the ability to change or move matter. 

Explanation

Energy is defined as the capacity or ability to do work or cause a change in matter. It is the force that enables movement, transformation, and the ability to perform tasks. Therefore, energy is indeed the ability to change or move matter, making the statement "True."

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13. The viscosity of a fluid is its resistance to flow. 

Explanation

The viscosity of a fluid refers to its ability to resist flowing easily. It is a measure of the internal friction within the fluid, determining how easily it can be poured or moved. A high viscosity means the fluid is thick and resistant to flow, while a low viscosity means the fluid is thin and flows easily. Therefore, the statement "The viscosity of a fluid is its resistance to flow" is true.

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14. The Kinetic Theory states that all matter is made of large items that are always still. 

Explanation

The given statement is false. The Kinetic Theory states that all matter is made up of small particles (atoms or molecules) that are constantly in motion. These particles have kinetic energy, and their movement determines the properties of matter. Therefore, the correct answer is false, as the statement contradicts the fundamental principles of the Kinetic Theory.

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15. The two types of pure substances are elements and compounds.

Explanation

The statement is true because elements and compounds are indeed the two types of pure substances. Elements are substances that cannot be broken down into simpler substances by chemical means, and they are made up of only one type of atom. Compounds, on the other hand, are substances that are made up of two or more different types of atoms chemically bonded together in fixed proportions. Therefore, elements and compounds are the two fundamental categories of pure substances.

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16. A piece of tin has a mass of 16.52 g and a volume of 2.26 cubic centimeters.  What is the density of the tin?

Explanation

The density of a substance is calculated by dividing its mass by its volume. In this case, the mass of the tin is given as 16.52 g and the volume is given as 2.26 cubic centimeters. Therefore, the density can be calculated as 16.52 g / 2.26 cubic centimeters = 7.31 g/cubic centimeter.

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17. What is the volume of 325 g of metal with a density of 9 g/cubic centimeters?

Explanation

The volume of a substance can be calculated by dividing its mass by its density. In this case, the mass of the metal is given as 325 g and the density is given as 9 g/cubic centimeters. By dividing the mass by the density, we can determine the volume. Therefore, the volume of the metal is 36 cubic centimeters.

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18. The Law of Conservation of Energy states that energy CAN be created and destroyed.

Explanation

The Law of Conservation of Energy states that energy cannot be created or destroyed, but it can only be transferred or transformed from one form to another. This principle is known as the First Law of Thermodynamics. It implies that the total amount of energy in a closed system remains constant over time. Therefore, the given statement is incorrect, as it contradicts the fundamental principle of energy conservation.

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19. Light is matter.

Explanation

The statement "Light is matter" is false. Light is not matter, but rather a form of energy. Matter refers to physical substances that have mass and occupy space, while light is a form of electromagnetic radiation that does not have mass and does not occupy space.

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20. The Law of Conservation of Mass states that mass CAN be created and destroyed.

Explanation

The Law of Conservation of Mass states that mass cannot be created or destroyed, but only transformed or transferred from one form to another. This principle is a fundamental concept in chemistry and physics, and it supports the idea that the total mass of a closed system remains constant over time, regardless of any physical or chemical changes that may occur within the system.

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21. Anything that has mass and takes up space is the definition of space.

Explanation

The given statement is incorrect. The definition of space is the unlimited or boundless three-dimensional extent in which objects and events occur and have relative position and direction. Anything that has mass and takes up space is the definition of matter, not space. Therefore, the correct answer is False.

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22. Gases have a variable volume and shape.

Explanation

Gases have a variable volume and shape because they do not have a fixed structure or arrangement of particles. The particles in a gas are constantly moving and can spread out to fill the entire volume of their container. Additionally, gases do not have a definite shape and can take on the shape of their container. This is why gases can be compressed or expanded to occupy different volumes. Therefore, the statement "Gases have a variable volume and shape" is true.

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23. Molecules join together to form atoms.

Explanation

This statement is incorrect. In reality, atoms join together to form molecules, not the other way around. Atoms are the basic building blocks of matter, and when they combine, they form molecules. Therefore, the correct answer is False.

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24. There are only 3 states of matter. 

Explanation

The statement "There are only 3 states of matter" is false. There are actually four states of matter: solid, liquid, gas, and plasma.

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25. What is the mass of an object that has a density of 8 g/per cubic centimeter and a volume of 64 cubic centimeters?

Explanation

The mass of an object can be calculated by multiplying its density by its volume. In this case, the density is given as 8 g per cubic centimeter and the volume is given as 64 cubic centimeters. Therefore, the mass can be calculated as 8 g/cm3 * 64 cm3 = 512 g. However, none of the given options match this calculation. Therefore, the correct answer is not available.

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Chemical properties can be observed when one substance reacts with...
Solids have a fixed volume and shape. 
The density of a substance is equal to its mass divided by its volume.
An atom is the smallest particle of matter that has the properties of...
The formula for density is: Density equals mass over volume 
Changes of state, including melting, subliming, evaporating, boiling,...
Liquids have a fixed volume and fixed shape. 
Physical properties can be observed or measured without changing the...
Na, Sodium, is a pure substance.
Fe, Iron, is a pure substance.
Chemistry is the study of matter and how it changes.
Energy is the ability to change or move matter. 
The viscosity of a fluid is its resistance to flow. 
The Kinetic Theory states that all matter is made of large items that...
The two types of pure substances are elements and compounds.
A piece of tin has a mass of 16.52 g and a volume of 2.26 cubic...
What is the volume of 325 g of metal with a density of 9 g/cubic...
The Law of Conservation of Energy states that energy CAN be created...
Light is matter.
The Law of Conservation of Mass states that mass CAN be created and...
Anything that has mass and takes up space is the definition of space.
Gases have a variable volume and shape.
Molecules join together to form atoms.
There are only 3 states of matter. 
What is the mass of an object that has a density of 8 g/per cubic...
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