10B Acid-Base Reactions

Question 1

What is a neutralisation reaction?

Answer 1

When an acid and base for a salt and water

Acid + Base –> Salt + H2O

Question 2

What is a displacement reaction?

Answer 2

When an acid and reactive metal form a salt and hydrogen gas

Acid + Reactive Metal –> Salt + H2(g)

Question 3

What are examples of reactive metals?

Answer 3

Ca, Mg, K, Zn

(the 2nd group)

Question 4

What is a double displacement reaction?

Answer 4

When an acid and metal carbonate form salt, water and carbon dioxide

Acid + Metal Carbonate –> Salt + H2O + CO2

Question 5

What does an acid and metal hydrogen carbonate react to form?

Answer 5

Salt + H2O + CO2

Question 6

What does an acidic oxide and base react to form?

Answer 6

Salt + Water

Question 7

What are the different equations for 2HNO3(aq) + Na2CO3(aq) → 2NaNO3(aq) + CO2(g) + H2O(l)?

Answer 7

Full equation: 2HNO3(aq) + Na2CO3(aq) → 2NaNO3(aq) + CO2(g) + H2O(l)
Ions: 2H+(aq) + 2NO3
−(aq) + 2Na+(aq) + CO3
2−(aq) → 2Na+(aq) + 2NO3
−(aq) +
CO2(g) + H2O(l)
Ionic equation: 2H+(aq) + CO3
2−(aq) → CO2(g) + H2O(l)