Acidic Reactions

• There are some key acidic reactions to remember.

Metal + Acid Reaction

• An important reaction to remember is defined by this word equation…
  • Metal + Acid → Salt + Hydrogen

Example of Application

$2Na+2(HCl)\to 2(NaCl)+H_2$

• In words, this is basically: Sodium + Hydrochloric Acid → Sodium Chloride + Hydrogen Gas
• This is also an example of a balanced equation. Balanced equations are not covered in Year 10.

Carbonate + Acid Reaction

• An important reaction to remember is defined by this word equation…
  • Carbonate + Acid → Salt + Water + Carbon Dioxide

Example of Application

$2(HCl)+N{a}_{2}C{O}_3\to 2(NaCl)+H_{2}O+C{O}_2$

• In words, this is basically: Hydrochloric Acid + Sodium Carbonate → Sodium Chloride + Water + Carbon Dioxide