7th Grade Unit Chemical Reactions

Match it! Select the correct answer from the pull down...Good luck!

A ______ is made up of only 1 type of atom, while a _______ is made up of 2 or more types of chemically bonded atoms

The arrow in a chemical equation represents _____________

The formula H2SO4 indicates that there are ____ hydrogen atoms, _____ sulfur atoms, and _____ oxygen atoms

A bottle of hydrogen peroxide breaks down into water and oxygen gas. This is an example of what kind of reaction?

Physical changes occur when existing bonds break, and new bonds form.

Substances that form as a result of a chemical equation are called

The rate of a chemical reaction is independent of temperature.

The ___________ is the amount of one material present in a given volume of another material.