predicting chemical equations

Question 1

combustion reaction

Answer 1

Hydrocarbon and oxygen as the reactants.

Question 2

replacement reactions

Answer 2

activity series tells us what metals can replace a metal in a compound dissolved in water(H2O)

Question 3

Single Replacement reactions

Answer 3

a metal will replace the cation in the compound/or a non-metal will replace the anion in the compound

Question 4

exothermic and endo thermic reaction

Answer 4

in single replacement reactions:
if the element is more reactive than the element it is replacing, it will also be a exothermic reaction
if above not true, it will be endothermic (no reaction)

Question 5

double reaction equations

Answer 5

both cation and anion switch places

Question 6

double replacement products

Answer 6

both product compound are ionic