Topics 7,8,9

Question 1

Which fruits contain citric acid?

Answer 1

Oranges and lemons

Question 2

What do acids taste like?

Answer 2

Sour

Question 3

What do bass feel like?

Answer 3

Soapy and slippery

Question 4

What givewhat gives coffee its bite taste and why?

Answer 4

Caffeine because it’s a base

Question 5

What is the scientific name for vinegar?

Answer 5

Ethanoic acid

Question 6

How do you make vinegar from wine?

Answer 6

You leave wine out in an open bottle for a few days and it will turn sour the oxygen from the air makes the wine acidic

Question 7

What is the taste of sour milk caused by

Answer 7

Lactic acid

Question 8

List a few natural acids

Answer 8

Citric acid in fruits 
Ethanoic acid ,in vinegar
Lactic acid, sour milk
Carbonic acid, found in fizzy drinks.
Hydrochloric acid,in stomach juices

Question 9

Give tw examples of strong acids

Answer 9

Hydrochloric acid

Sulfric acid

Question 10

What do metals look lik

Answer 10

Thy are shiny

Question 11

What do non-metals

Answer 11

Dull

Question 12

What what is a metals state of matter?

Answer 12

Mostly solids except mercury, which is a liquid

Question 13

What is a non metals state of matter

Answer 13

Gas,liquid and solid

Question 14

What type of conductor is a metal

Answer 14

Good conductor

Question 15

What type of conductor is a semi metal?

Answer 15

Poor conductor

Question 16

What type of hat conductor is a metal

Answer 16

Good conductor

Question 17

What type of heat conductor is a non metal

Answer 17

Poor conductor

Question 18

What metals are magnetic

Answer 18

Iron, cobalt and nickel

Question 19

What non metals are magnetic

Answer 19

None are magnetic

Question 20

How malleable are metals

Answer 20

Can bend without breaking

Question 21

How malleable are non metals

Answer 21

Connor bend without breaking

Question 22

Are metals ductile ?

Answer 22

Yes can be stretched out into a thin wire

Question 23

Are non metals ductile

Answer 23

Cannot be stretched out

Question 24

What is the melting point of a metal

Answer 24

It’s a high melting point most metals are solid at room temperature

Question 25

What melting point does a non metal have

Answer 25

Low melting point

Question 26

What are semi metals

Answer 26

Semi metals are in the region between metals and non metals in the periodic table

Question 27

What is the most common semi metals

Answer 27

Silicon

Question 28

What is a group in the periodic table

Answer 28

The horizontal Colm

Question 29

What is a period in the periodic table

Answer 29

Th vertical column

Question 30

Are semi metals ductile and malleable

Answer 30

No

Question 31

Can semi metals conduct electricity?

Answer 31

Yes, but no as well as well as metals they are called semi metals

Question 32

What is a strong base

Answer 32

Magnesium oxide , used to treat indigestion | Bicorbonate of soda.

Question 33

What are the properties of bases

Answer 33

Taste bitter Feel slippery on the skin Many bases are corrosive and caustic

Question 34

What is a neutrals

Answer 34

They are neither acids o bases

Question 35

What is an example of a neutral

Answer 35

Slat solution sugar solution and cooking oil