Chemical Equations - Types of Chemical Reactions

Question 1

types of chemical reactions

Answer 1

• synthesis (combination)
• decomposition
• replacement (single or double)
• combustion

Question 2

chemical reaction

Answer 2

• (s) solid reactant or product
• (l) liquid reactant or product
• (g) gaseous reactant or product
• (aq) reactant or product in water

Question 3

synthesis reaction

Answer 3

• A + B -> AB
• two reactant -> one product
• Al + Cl2 -> AlCl

Question 4

decomposition reactions

Answer 4

• XY -> X + Y
• one reactant -> two (or more) products
• HgO + heat -> Hg + O2

Question 5

replacement reaction

Answer 5

• single: A + BC -> B + AC
• double: AB + CD -> CB + AD
• two reactants-> two products
• one compound + one compound -> new compound + new compound
• HgCl2 + K2CO3 -> MgCO3 + KCl

Question 6

combustion reactions

Answer 6

• A + O2 -> CO2 +H2O
• hydrocarbon + oxygen -> carbon dioxide = water
• reaction occurs in presence of oxygen, combustion reactions can also be synthesis reactions