flash cards

Question 1

Acid

Answer 1

A chemical that has a pH of below 7

Question 2

Alkali

Answer 2

A soluble base with a pH above 7

Question 3

Base

Answer 3

Any chemical that is capable of neutralising an acid

Question 4

Burette

Answer 4

Piece of equipment used to add acid or alkali drop by drop

Question 5

Concentration

Answer 5

How many particles are dissolved in a solution

Question 6

Combustion

Answer 6

Burning of a fuel in oxygen

Question 7

Corrosive

Answer 7

Any substance that can eat through materials

Question 8

Hazard

Answer 8

Any substance or item that could be dangerous

Question 9

Hypothesis

Answer 9

A statement that can be tested scientifically

Question 10

Indicator

Answer 10

A chemical that changes colour in acids, alkalis or neutral solutions

Question 11

Neutralisation

Answer 11

When acids and bases react together to produce a neutral solution

Question 12

Oxidation

Answer 12

A reaction in which a substance joins with oxygen

Question 13

Repeatable

Answer 13

When repeated readings are taken by the same group and results are very similar

Question 14

Universal indicator

Answer 14

Indicator with a range of colours, each of which indicates a position on the pH scale

Question 15

Numeracy

Answer 15

Repeatable results are ones that are very close to each other.
Anomalies must be removed before calculating means.
Round up mean calculations to the same number of decimal places as the original.