Unit 1 Review Rehberg

Front

What is the symbol for Hydrogen? Options: He, Ge, Hg, H

Back

H

Front

When heat is added to a liquid, how does this affect the particles?

Back

The particles move faster when heat is added.

Front

A compound

Back

Is made up of many atoms of two or more elements.

Front

An atom is:

Back

the smallest unit of an element.

Front

What is a mixture?

Back

substances that are combined in a physical way.

Front

Which of the following is an example of an element? Salt, Sugar, Vinegar, Oxygen

Back

Oxygen

Front

Which of the following are an example of a chemical change?

• dying your hair blue
• a substance bubbling
• a soft pillow
• piercing your ear

Back

a substance bubbling

Front

Which is a reactant in the following problem? 2Fe + 6OH = 2Fe6OH

Back

2Fe

Front

How are particles of a solid arranged?

Back

tightly together

Front

An example of a homogeneous mixture is: chocolate chip cookies, a chocolate cake, a salad, a soft drink

Back

a soft drink