Match these items
1.instantaneous combustion
a. reactants
2.mass of substances before and after a reaction is the same
b. arrow symbol
3.substances that combine
c. law of conservation of matter
4. yields or makes
d. product
5.rapid oxidation
e. rust
6.new substance
f. explosion
7.slow oxidation
g. burning

The correct matches are as follows:

1.instantaneous combustion 
G.burning

2.mass of substances before and after a reaction is the same
C.Law of Conservation of Matter

3.substances that combine
A.reactants

4. Yields or makes
B.arrow symbol 

5.rapid oxidation
F.explosion

6.new substance
D.product

7.slow oxidation
E.rust

Hope this answers the question. Have a nice day.

Ions gain or lose electrons

Wow that a lot of text for my tiny so i no wanna answer