🔴 General Equations

Question 1

Acid + metal —>

Answer 1

(Metal) salt + hydrogen

Question 2

(Neutralisation reaction) Acid + base —>

Answer 2

Salt + water

Question 3

Acid + metal oxide —>

Answer 3

Salt + water

Question 4

Acid + metal hydroxide —>

Answer 4

Salt + water

Question 5

Acid + metal carbonate —>

Answer 5

Salt + carbon dioxide + water

Question 6

Metal + water —>

Answer 6

Metal hydroxide + hydrogen

Question 7

Photosynthesis equation:

Answer 7

Carbon dioxide + water —(with LIGHT)—> glucose + oxygen

Question 8

Iron + oxygen + water —>

Answer 8

Hydrated iron oxide (rust)

Question 9

Metal + halogen —>

Answer 9

Metal halide

Question 10

(Complete combustion) Alkane + oxygen —>

Answer 10

Carbon dioxide + water (vapour)

Question 11

Haber Process

Answer 11

N2 (g) + 3H2 (g) <—> 2NH3 (g)
[exothermic]

Question 12

What is a displacement reaction?

Answer 12

The more reactive metal or halogen will displace a less reactive metal or halide from its compound in solution

Question 13

What is the order of reactivity (highest to lowest) of the halogens?

Answer 13

Fluorine - chlorine - bromine - iodine

Question 14

What is the order of reactivity (highest to lowest) of the metals?

Answer 14

Potassium
Sodium
Lithium
Calcium
Magnesium
Aluminium
(Carbon)
Zinc
Iron
Tin
Lead
(Hydrogen)
Copper
Silver
Gold

Question 15

Ammonia + acid

Answer 15

Ammonium salt (neutralisation as ammonia is a base)