Reaction Study Guide

Front

Why does an increase in temperature result in an increase in reaction rate?

Back

It causes an increase in the number of particle collisions.

Front

Which observation does NOT indicate that a chemical reaction has occurred?

Back

State of matter change.

Front

What type of reaction occurs when something is burned?

Back

Combustion.

Front

How many atoms of Nitrogen are represented in 2Ca(NO3)2?

Back

4.

Front

What does the symbol (s) stand for in a chemical equation?

Back

Solid.

Front

What is a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture.

Front

What is the difference between an endothermic and exothermic reaction?

Back

Endothermic absorbs heat; exothermic releases heat.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed.