Answer:
A chemical reaction is the proccess of two or more chemical compounds coming in to contact with eachother. This could be gas, liquid, solid, ect. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products. For Example: Iron and oxygen can combine over time to create rust. Vineger and baking soda combine to make sodium acetate. The most known is two Hydrogen and one oxygen make H2O.
more Examples:
A + B ----> C + D
C + O
------> CO
AB + CD ------> AD + CB
2H
O ------> 2H
+ O
Pb(NO
)
+ 2KI -------> P
I
+ 2KNO