Types of Reactions

Question 1

Combination Reactions

Answer 1

When two reactants combine to form one product.
S + O -> SO2

two reactants one product

Question 2

Decomposition Reactions

Answer 2

When some substances are heated, they can break down or decompose.

2NaNO3 -> 2NaNO2 + O2

one reactant two products

Question 3

Displacement Reactions

Answer 3

In this recation, a metal or non-metal may displace another from its salt.

Zn + CuSO4 -> ZnSO4 + Cu
two reactants and two products

Question 4

Double Decomposition Reactions

Answer 4

When salt solutions are mixed together, they exchange ions.

2NaNO3 + ZnSO4 -> Zn(NO3)2 + NaSO4

cations swap places when it goes to reactant to protect

Question 5

Neutralisation Reaction

Answer 5

a reaction between a base and an acid to form a salt and water

When acids or bases react until their pH is exactly neutral or 7. This works because when acids and bases react, they cancel eachother out.

HCl + 3O2 -> NaCl + H2O