Acids And Alkalis

Question 1

What is the pH of an acid and what colour will it turn would universal indicator

Answer 1

Less than 7

Red/Orange/Yellow

Question 2

What is the pH of an alkaline solution and what colour will it turn with universal indicator?

Answer 2

Greater than 7

Blue/Purple

Question 3

What is the pH of a neutral solution and what colour will it time with universal indicator?

Answer 3

7

Green

Question 4

What is an indicator?

Answer 4

A substance that will change colour at a specific pH value

Question 5

What is neutralisation?

Answer 5

The process of removing acidity or alkalinity by reacting an acid and an alkali together

Question 6

What is the equation for neutralisation?

Answer 6

Acid + Alkali —> Salt + Water

Question 7

What gas is made when a metal reacts with an acid

Answer 7

Hydrogen

Question 8

What is the equation for the reaction between a metal and an acid?

Answer 8

Acid+ metal —> salt+ water

Question 9

What gas is made when carbonate reacts with an acid

Answer 9

Carbon dioxide