Equations

Question 1

substance + oxygen >

Answer 1

oxides

Question 2

metal + water >

Answer 2

metal hydroxide + hydrogen

Question 3

metal + acid >

Answer 3

salt + hydrogen

Question 4

oxide + acid >

Answer 4

salt + water

Question 5

hydroxide + acid >

Answer 5

salt + water

Question 6

carbonate + acid >

Answer 6

salt + water + carbon dioxide

Question 7

hydrogencarbonate + acid >

Answer 7

salt + water + carbon dioxide

Question 8

ammonia + acid >

Answer 8

ammonium salt
(e.g. NH3 + HCl > NH4Cl)

Question 9

metal carbonate (on heating) >

Answer 9

metal oxide + carbon dioxide

Question 10

What is an ionic equation?

Answer 10

Ionic equations are chemical equations that show only ions that participate in a chemical reaction.

Question 11

What are ions that don’t take participate in a reaction called?

Answer 11

spectator ions

Question 12

ionic equation for acid + hydroxide:

Answer 12

H+(aq)+OH−(aq)→H2O(l)

Question 13

ionic equation for acid + carbonate:

Answer 13

2H+(aq) + CO3^2−(aq) → H2O(l) + CO2(g)

Question 14

ionic equation for acid + hydrogencarbonate:

Answer 14

H+(aq) + HCO3−(aq) → H2O(l) + CO2(g)

Question 15

ionic equation for acid + ammonia:

Answer 15

H+(aq) + NH3(aq) > NH4+(aq)