Chemistry Unit Review

Front

What type of reaction releases energy in the form of heat?

Back

Exothermic reaction

Front

What is the chemical name for NaCl?

Back

Sodium chloride

Front

Can a pure substance be made of compounds?

Back

True

Front

What charge does an electron have?

Back

Negative

Front

Which of the following is an example of a pure substance?

Back

Gold

Front

What is the process called when a solid turns into a gas without becoming a liquid?

Back

Sublimation

Front

What is the smallest unit of an element that retains its properties?

Back

Atom

Front

What is the term for a mixture that has a uniform composition throughout?

Back

Homogeneous mixture

Front

What is the term for a substance made of two or more elements chemically combined?

Back

Compound

Front

What is the pH level of a neutral solution?

Back

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