Chemistry Ch 2 Matter

Which is NOT a sign of a chemical reaction taking place?

• color changes

• gas formed

• no temperature change

• precipitate forms

Which state of matter has an indefinite shape but a definite volume?

• gas

• liquid

• solid

• both liquid and solid

wax + oxygen yields water + carbon dioxide

In this equation, which is a reactant?

• oxygen

• water

• carbon dioxide

• all of these

The chemical formula of H₂O tells you:

• there are 2 hydrogens and 1 oxygen

• there are 1 hydrogen and 2 oxygens

• there are 1 each of hydrogen and oxygen

• there are 2 each of hydrogen and oxygen

The type of substance where you can see the different parts of it is called:

• homogeneous mixture

• heterogeneous mixture

• element

• compound

The type of substance that is made of only one thing is called:

• homogeneous mixture

• heterogeneous mixture

• element

• compound

The type of substance that has several elements joined together chemically, with bonds, is called:

• homogeneous mixture

• heterogeneous mixture

• element

• compound

The type of substance that looks all the same, like a solution of lemonade, is called:

• homogeneous mixture

• heterogeneous mixture

• element

• compound

If you were separating a mixture using boiling point differences, like making your own moonshine in a still, which method would you be using?

• filtration

• distillation

• chromatography

Separating a mixture using particle size, like using a colander/strainer to separate spaghetti noodles from the water, is called:

• chromatography

• distillation

• filtration