Chemical Changes Review

Front

What are the big/regular sized numbers in a chemical formula called?

Back

Coefficients

Front

What type of change is a change in state (e.g., melting, boiling)?

Back

Physical Change

Front

How many Chlorine atoms are in 5NaCl?

Back

5

Front

What does the arrow (→) represent in a chemical equation?

Back

Yields

Front

How many Carbon atoms are on the product side of the equation 5C₄O₈→2C₅O₂₀?

Back

10

Front

What is a chemical change?

Back

A process where substances transform into different substances with new properties.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a reactant in a chemical equation?

Back

A substance that undergoes a change during a chemical reaction.

Front

What is a product in a chemical equation?

Back

A substance that is formed as a result of a chemical reaction.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.