Show:
Molecules, Compounds, & Mixtures
Phsycial Changes
Chemical Changes
Chemical Reactions
Acids, Bases, & Salts
100

a group of atoms 2 or more

What is molecules?

100

when any kind of this is formed, a physical change takes place

What is a mixture?

100
this occurs whenever there is a change in a substance's molecules
What is a chemical change?
100
chemical changes are called these
What are chemical reactions?
100
acids and bases are chemical _________________
What is opposites?
200

a substance that is made from molecules 2 or more than one element a pure substance 

What is a compound?

200
another kind of physical change takes place when this changes state
What is matter?
200
this causes atoms to break free of their molecules and form different molecules
What is energy?
200

scientists use symbols in these that describe molecules

What are formulas?

200

different types of these are produced when an acid or a base breaks up in water

What is an ion?

300

Element may contain _____________ and ___________ making it a pure substance 

atoms and molecules 

300
the state of matter depends mostly upon this
What is temperature?
300
this is never lost in a chemical change
What is matter?
300

Formulas must be balanced or unbalanced 

What is balanced?

300

What is the number assigned to bases?

What is 8-14

400

every molecule in a compound is like this

What is exactly the same?

400
solid, liquid, and gas
What are the 3 states of matter?
400

when baking a cake, the mixture does this to create atoms of a new substance

What is a chemical change 

400

there are the ____________ number of each kind of atom on each side of the equation

What is same?

400

What are the numbers assigned to an acid?

What is 0-6

500

most of the things you see in everyday life are not pure elements or compounds, they are these

What are mixtures?

500
a third kind of physical change takes place when there in a change in this of the substance
What is shape?
500

chemical changes turn the food you eat into this your body can use uses this an acid or base 

What is an acid?

500
this causes molecules to break apart
What is energy?
500

What is the scale used to measure an acid or base?

What is the pH scale?