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Molecules, Compounds, & Mixtures
Phsycial Changes
Chemical Changes
Chemical Reactions
Acids, Bases, & Salts
100
a group of atoms
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 fo more than one element
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
compounds form in these ways
What are different ways?
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
scientists use formulas in these to show changes
What are equations?
300
bases that can be dissolved in water are called these
What is alkalis?
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 reform?
400
there are the ____________ number of each kind of atom on each side of the equation
What is same?
400
acids and alkalis do this to each other
What is neutralize?
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
What is substance?
500
this causes molecules to break apart
What is energy?
500
acids and bases and have many of these
What are uses?