Reactions With Hydrochloric Acid And Sulfuric Acid

Question 1

Magnesium

Answer 1

Reacts quickly
Bubbles of gas forms
Magnesium dissolves
Exothermic
Colourless solution left

HCL: Mg + 2HCL —> MgCl2 + H2
H2SO4: Mg + H2SO4 —> MgSO4 + H2

Question 2

Zinc

Answer 2

Reacts slower than magnesium
Bubbles of gas formed
Leaves colourless solution
Zinc dissolves

HCL: Zn + 2HCL —> ZnCl2 + H2
H2SO4: Zn + H2SO4 —> ZnSO4 + H2

Question 3

Iron

Answer 3

Reacts slower than zinc
Iron dissolves
Bubbles of gas
Pale green solution formed

HCL: Fe + 2HCL —> FeCL2 + H2
H2SO4: Fe + H2SO4 —> FeSO4 + H2