2g- Acids, bases & Salts

Question 1

Acid + alkali —>

Answer 1

Salt + water

Question 2

What is solubility rule no.1

Answer 2

sodium, potassium and ammonium compounds are soluble

Question 3

What is solubility rule no.2

Answer 3

All nitrates are soluble

Question 4

What is solubility rule no.3 (chlorides)

Answer 4

chlorides are soluble except:

• silver
• lead

Question 5

What is solubility rule no.4 (sulphates)

Answer 5

sulphates are soluble except

• barium
• calcium
• lead

Question 6

What is solubility rule no.5 (carbonates)

Answer 6

carbonates are insoluble except:

• sodium
• potassium
• ammonium

Question 7

What is solubility rule no.6 (hydroxides)

Answer 7

hydroxides are insoluble except:

• sodium
• potassium
• calcium (CaOH is slightly soluble)

Question 8

When acids react they ____ electrons to form ____

Answer 8

LOSE electrons to form POSITIVE HYDROGEN IONS (H+)

Question 9

When bases react they ____ electrons to form ____

Answer 9

GAIN electrons to form NEGATIVE HYDROXIDE IONS (OH-)

Question 10

Acids are proton ____?

Answer 10

Donors

- ionise in solution producing protons

Question 11

Alkalis are proton ____?

Answer 11

Acceptors

- ionise in solution producing (OH-) ions which accept protons

Question 12

Acid + metal ——>

Answer 12

Salt + hydrogen

Question 13

Which metals will react with dilute acids

Answer 13

Metals above hydrogen in the reactivity series

Question 14

What can act with bases?

Answer 14

All metal oxides and metal hydroxides

Question 15

Acid + metal carbonate ——>

Answer 15

Salt + Carbon Dioxide + water

Question 16

What type of reaction occurs when acid and bases react?

Answer 16

Neutralisation reaction

Question 17

What are alkalis ?

Answer 17

Bases that are soluble in water