Science - Acids & Alkalis

Question 1

What are the ‘features’ of an acid

Answer 1

They can be an irritant or corrosive. They have to be handled with care.

Question 2

How do we measure an acid or alkali

Answer 2

Using litmus paper or Universal indicator

Question 3

Examples of some dilute acids

Answer 3

hydrochloric acid, sulphuric acid and nitric acid (Bottles labelled as IRRITANTS)

Question 4

What acids might you find in fizzy drinks?

Answer 4

Carbonic acid in fizzy

Question 5

Litmus Paper

Answer 5

Blue litmus turns RED for ACID, but stays blue for an alkali Red litmus turns BLUE in an alkaline solution.

Question 6

Universal Indicator

Answer 6

Universal indicator is a liquid. You can use it to tell how strong or weak an acis or an alkali is It has many different colour changes. Red for strong acids Green is neutral.

Question 7

PH Scale

Answer 7

The scale used to measure how strong or weak the liquid is. The pH scale runs from pH 0 to pH 14. 0 STRONG acid neutral solutions are pH 7 exactly the closer to pH 14 you go, the more strongly alkaline a solution is. PURPLE.

Question 8

What type of acid is a LEMON?

Answer 8

Citric Acid

Question 9

What acid do you find in soap?

Answer 9

Sodium hydroxide

Question 10

What acid do you find in vinegar?

Answer 10

acetic acid