Chemical Reactions

Question 1

First type of synthesis reaction

Answer 1

Elements as reactants will combine together

Question 2

Second type of synthesis reaction

Answer 2

Non Metal oxides react with water to produce oxyacids

Question 3

Third type of synthesis reactions

Answer 3

Metal oxides react with water to produce metal hydroxides

Question 4

First type of decomposition reaction

Answer 4

Binary compounds split into elements

Question 5

Second type of decomposition reaction

Answer 5

Metal nitrates break into metal nitrite releasing oxygen gas

Question 6

Third type of decomposition reactions

Answer 6

Metal carbonates break into metal oxide and co2

Question 7

Combustion reactions

Answer 7

Combustion of hydrocarbons ( fossil fuels )

Question 8

Complete combustion

Answer 8

More than enough oxygen present
Co2 and water produced

Question 9

Incomplete combustion

Answer 9

Not enough oxygen present
Carbon carbon monoxide co2 and water produced

Question 10

Single displacement reactions

Answer 10

Metal displacing metal in aq ionic compound
( if metal is more reactive)
Metal displacing hydrogen from acids
( if on acids arrow)
Metal displacing hydrogen from water
( if on cold water arrow)
Halogen reacting with ionic compound
( if halogen is more reactive )

Question 11

Double displacement reactions

Answer 11

Two aqueous ionic compounds
Formation of precipitate
Formation of water
Formation of carbonic acid