Chemical/ Physical Properties and Changes

Front

What is a physical property?

Back

A characteristic of a substance that can be observed or measured without changing its identity, such as color, state of matter, or density.

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What is a chemical property?

Back

A characteristic of a substance that describes its ability to change into different substances, such as reactivity with acid or flammability.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition, such as melting or freezing.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances, such as digestion or combustion.

Front

Give an example of a physical change.

Back

Melting ice into water.

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Give an example of a chemical change.

Back

Baking soda reacting with vinegar to produce carbon dioxide.

Front

What does the Law of Conservation of Mass state?

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Mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

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What is density?

Back

The mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

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What is the state of matter?

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The distinct forms that different phases of matter take on, primarily solid, liquid, gas, and plasma.

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What is flammability?

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The ability of a substance to catch fire and burn in the presence of an ignition source.