Acids And Bases

Question 1

Acids

Answer 1

Acids tend to have a very sour, sharp taste. Acids are corrosive e.g. Lemons

Question 2

Bases

Answer 2

Bases are opposite to acids. We uses bases in our every day lives. For example: toothpaste + bleach

Question 3

Indicators

Answer 3

Are substances which change colour depending if they are an acid or a base. For example: litmus paper (will go blue to red for acids and red to blue for bases)

Question 4

PH scale

Answer 4

A scale that goes from 1-14

It tells us how strong or weak an acid or a base is

Question 5

Universal indicator

Answer 5

Is a mixture of indicators. It can change to a variety of different colours depending on the PH.

Question 6

Neutralisation

Answer 6

Turing an acid to a base, or a base to an acid using salt or water

Question 7

Tirations

Answer 7

allow you to find out exactly how much acid is needed to neutralise a base.

Question 8

When an acid and metal reacts what happens?

Answer 8

Salt and hydrogen forms

Question 9

What happens when hydrogen gas burn

Answer 9

You hear a popping noise

Question 10

Litmis paper

Answer 10

And acid turns blue litmis paper red and red litmis paper blue

Question 11

What is the word equation (in words)

Answer 11

Hydrochloric acid + sodium hydroxide -> sodium chloride + water

Question 12

Word equation (in letters)

Answer 12

HCL + NaOH -> NaCl + H2o