Section 2 changes Flashcards
1
Q
when a change in a chemical composition occurs
A
chemical change
2
Q
a process where chemical bonds are formed or broken
A
chemical reaction
3
Q
when matter changes in appearance without changing in chemical composition
A
physical change
4
Q
the new substances formed by a reaction
A
products
5
Q
substances that go into a chemical reaction
A
reactants
6
Q
an atom with a net electric charge
A
ion
7
Q
bond between a metal and a non-metal
A
ionic bond
8
Q
bond between two non-metals; sharing electrons
A
covalent bond
9
Q
bond between two metals; electrons move freely
A
metallic bond
