Acid-Base reactions

Question 1

Four different types of acid-base reactions

Answer 1

1. Acid + Metal → Salt + Hydrogen gas
2. Acid + Metal oxide → Salt + Water
3. Acid + Metal hydroxide → Salt + Water
4. Acid + Metal (hydrogen) carbonate → Salt + Water + Carbon dioxide gas

Question 2

Two gas formation reaction
What do we observe

Answer 2

Acid + Metal (hydrogen) carbonate → Salt + Water + Carbon dioxide gas
Acid + Metal → Salt + Hydrogen gas
Observation: bubbles

Question 3

What is oxidation

Answer 3

Loss of electrons

Question 4

What is reduction

Answer 4

Gain of electrons