Acids Alkalis (Bases) Metals And Non Metals

Question 1

Weak acids

Answer 1

This is acids with less hydrogen ions the PH value range from 4 to 6

Question 2

Examples of weak acids

Answer 2

Acetic acid (vinegar)
Carbonic acid (fizzy drinks)
Lactic acid (sour milk)
Citric acid (lemon and orange)

Question 3

Strong acids

Answer 3

This is acids with more hydrogen ions the pH range form 1 to 3

Question 4

Examples of strong acids

Answer 4

Hydrochloric acid
Nitric acid
Sulfuric acid

Question 5

Weak basis

Answer 5

This are bases with less hydroxide ions the pH range form 8-10

Question 6

Examples of strong basis

Answer 6

Eno
Saliva
Soap
Lime water

Question 7

Strong basis

Answer 7

This are bases with more hydroxide ions the pH value of 11 to 14

Question 8

Examples of strong basis

Answer 8

Sodium hydroxide
Ammonia

Question 9

Properties of bases

Answer 9

They turn red litmus paper blue
The pH is more than 7
They taste bitter and feel slippery
They contain hydrogen ions (OH-)
Metal oxides react with water to form basis

Question 10

Properties of acids

Answer 10

They have a sour taste
They contain positive hydrogen ions (H+)
They have ph less than 7
Non metal oxides react with water to form acid
They turn blue litmus paper red

Question 11

Inductors

Answer 11

Are plant dyes that change color in acid or alkaline solutions

Question 12

The strength of acids and bases can be measured on a ph scale using

Answer 12

A universal indicator

Question 13

Universal indicator

Answer 13

Is a mixture of dyes which change color at different ph values it can be used to determine the pH of a solution

Question 14

Neutralisation

Answer 14

Is when a base reacts with an acid to form salt and water

Question 15

Base+acid

Answer 15

Salt and water

Question 16

Ammonium hydroxide+ nitric acid

Answer 16

Ammonium nitrate and water

Question 17

Salt formed nitric

Answer 17

Nitrate

Question 18

Sulphuric salt formed

Answer 18

Sulphate

Question 19

Hydrochloric salt formed

Answer 19

Chloride

Question 20

Ethanoic salt formed

Answer 20

Ethanoate

Question 21

Lactic salt formed

Answer 21

Lactate

Question 22

Citric salt formed

Answer 22

Citrate

Question 23

Metal+acid

Answer 23

Salt+hydrogen gas

Question 24

Zinc+hydrochloric acid

Answer 24

Zinc chloride+hydrogen

Question 25

Magnesium+sulphuric acid

Answer 25

Magnesium sulphate+hydrogen

Question 26

Calcium+nitrate acid

Answer 26

Calcium nitrate+hydrogen

Question 27

Test for hydrogen

Answer 27

When a burning splint is brought near hydrogen gas a poping sound is produced

Question 28

Metal carbonate+acid

Answer 28

Salt+water+carbon dioxide

Question 29

Metal+oxygen

Answer 29

Metal oxide

Question 30

Non metal+oxygen

Answer 30

Non metallic oxide

Question 31

Reactivity series

Answer 31

It is an arrangement of metals in the order in which they will react with substances Starting with the most reactive metal and ending with the least reactive metal

Question 32

Alloy

Answer 32

It is a metal mixed with another metal or with a non metal