Chemical Reaction Quiz Review

Something that can be observed about a substance, such as color, smell, boiling point, melting point, and freezing point.

• atoms

• substance

• property

• chemical formula

What is an atom?

• tiny pieces that all matter is made of

• groups of atoms joined together in a particular way

• the product of a chemical reaction

• a change in the appearance of a substance

What is a substance?

• an element

• letters and numbers groups together to represent the type and number of atoms

• Something that is made of all the same atoms or groups of atoms

• the outcome of an experiment

What is a molecule?

• one type of element

• something that simplifies a complicated substance or makes it easier to see

• one type of atom

• groups of atoms that are joined together in a particular way

What is a chemical PROPERTY?

• a property that deals with how substances react with other substances

• a property that can be observed using one of the five senses

What is a PHYSICAL property?

• a property that deals with how substances react with other substances

• a property that can be observed using one of the five senses

Check all that are PHYSICAL changes.

• ripping a paper

• breaking a glass

• baking a cake

• boiling water

Check all that are CHEMICAL changes.

• baking cookies

• mixing poly A and poly B to form a new substance

• baking soda and vinegar reacting

• dropping a cup on the floor

According to the law of conservation of matter/mass...

• matter/mass cannot be created or destroyed, AND it cannot be rearranged

• matter/mass cannot be created or destroyed, BUT it can be rearranged

• matter/mass can be created or destroyed, BUT it cannot be rearranged

• matter/mass can be created or destroyed, AND it can be rearranged

Look at the image. What is the atomic mass of Carbon?

• 6

• 6.99

• 12.01

• cannot be determined