Definitions

Question 1

what is an acid?

Question 2

what is the basicity of an acid?

Answer 2

number of hydrogen ions which can be produced by one molecule of the acid upon ionisation

Question 3

what is a salt?

Answer 3

ionic compound formed when a metal or ammonium ion replaces one or more hydrogen ion(s) of an acid

Question 4

what is a metal carbonate?

Answer 4

ionic compound containing metal ion and carbonate ion

Question 5

what is a base?

Answer 5

any metal oxide/hydroxide that react with acids to produce salt and water only (neutralisation)

Question 6

what is an alkali?

Answer 6

soluble base that produces hydroxide ions in aqueous solution

Question 7

what is the concentration of a solution?

Answer 7

amount of solute dissolved in 1dm^3 of solution

Question 8

what are ammonium salts?

Answer 8

salts that contain ammonium ions

Question 9

what is a saturated solution?

Answer 9

solution formed when the maximum amount of solute dissolves in a fixed volume of a solvent at a fixed temperature

Question 10

what is a concentrated solution?

Answer 10

when a large number of particles of a substance is present in a fixed volume of solvent

Question 11

what is a diluted solution?

Answer 11

when a small number of particles of a substance is present in a fixed volume of solvent

Question 12

what is the strength of an acid/alkali?

Answer 12

the extent it ionises to produce H+ or OH- ions when dissolved in water

Question 13

what is a strong acid/alkali?

Answer 13

an acid/alkali that ionises completely in an aqueous solution

Question 14

what is a weak acid/alkali?

Answer 14

an acid/alkali that ionises partially in an aqueous solution

Question 15

what is an oxide?

Answer 15

compound of oxygen and another element