Unit 9 Material Changes Quiz

Question

Two liquids were mixed together in a test tube. Which one of these would NOT show that a chemical reaction had taken place?

Answer 1

A The tube got warm.

Answer 2

B Bubbles of gas were given off.

Answer 3

C A brightly coloured solid formed in the tube.

Answer 4

D One of the liquids floated on top of the other.

Answer 5

A Melting some margarine in a pan

Answer 6

B Boiling a kettle of water

Answer 7

C Frying an egg

Answer 8

D Cooling a drink by putting an ice cube in it.

Answer 9

A All reactions need energy to start them off.

Answer 10

B Some reactions need energy to start them off.

Answer 11

C All reactions happen when two chemicals are mixed.

Answer 12

D All reactions happen very quickly.

Answer 13

A always produces a gas.

Answer 14

B is always reversible.

Answer 15

C makes new substances.

Answer 16

D does not make new substances.

Answer 17

A reactants.

Answer 18

B chemicals.

Answer 19

C products.

Answer 20

A burns with a squeaky pop.

Answer 21

B makes a glowing splint relight and burn brightly.

Answer 22

C puts a glowing splint out.

Answer 23

D turns universal indicator solution red.

Answer 24

A a reversible physical change.

Answer 25

B a reversible chemical change.

Answer 26

C an irreversible physical change.

Answer 27

D an irreversible chemical change.

Answer 28

Image:

A 150 (binary/octet-stream)

Answer 29

Image:

B 200 (binary/octet-stream)

Answer 30

Image:

C 150 (binary/octet-stream)

Answer 31

Image:

D 100 (binary/octet-stream)

Answer 32

A just one substance, like pure salt.

Answer 33

B two or more things mixed together, like nuts and raisins.

Answer 34

C two things joined together, like flour and sugar in a baked cake.

Answer 35

D a lot of the same thing put together.

Answer 36

A The salt dissolves because it is insoluble.

Answer 37

B The salt dissolves because it is soluble.

Answer 38

C The salt melts because it is soluble.

Answer 39

D The salt melts because it is insoluble.

Answer 40

A the salt is the solvent.

Answer 41

B the water is the solute.

Answer 42

C the salt is the solute.

Answer 43

D the water is the solution.

Answer 44

A sand from a mixture of sand and water.

Answer 45

B sugar from sugar solution.

Answer 46

C tea leaves from a pot of tea.

Answer 47

D leaves from a mixture of leaves and pond water

Answer 48

A it is pure.

Answer 49

B rain water has lots of chemicals dissolved in it.

Answer 50

C the water dissolves chemicals from rocks it passes through.

Answer 51

D the water dissolves chemicals from the pipes it flows through.

Answer 52

A evaporating the liquid.

Answer 53

B using a sieve.

Answer 54

C using a filter.

Answer 55

D freezing the liquid.

Answer 56

A Rock salt is a mixture of rock and salt.

Answer 57

B Rock salt can be used to make pure salt to put on food.

Answer 58

C You can get salt from rock salt using a sieve.

Answer 59

D You can get salt from rock salt by dissolving, filtering and evaporating.

Answer 60

A filtering it.

Answer 61

B evaporating it.

Answer 62

C distilling it.

Answer 63

D adding more water to it.

Answer 64

A filtering followed by evaporation.

Answer 65

B evaporation followed by condensation.

Answer 66

C condensation followed by filtering

Answer 67

D filtering followed by condensation

Answer 68

A sand from sugar.

Answer 69

B petrol from crude oil.

Answer 70

C pure water from sea water.

Answer 71

D alcohol during the production of whisky.

Answer 72

A a way of separating different liquids from each other.

Answer 73

B a way of separating different dissolved colours from each other.

Answer 74

C a way to separate a liquid from a solid which doesn’t dissolve.

Answer 75

D a special way to draw a graph.

Answer 76

A a lot of each chemical is used.

Answer 77

B the special paper has been warmed before it is used.

Answer 78

C the special paper is moved during the experiment.

Answer 79

D the chemicals to be separated dissolve in the liquid used.

Answer 80

A is always cold.

Answer 81

B has a lot of water in it.

Answer 82

C will not dissolve any more solvent.

Answer 83

D will not dissolve any more solute.

Answer 84

A it will be transparent.

Answer 85

B there will be bits of undissolved solid in it.

Answer 86

C it will be coloured.

Answer 87

D it will be hot.

Answer 88

A less than 20 g will dissolve.

Answer 89

B only 20 g will dissolve.

Answer 90

C more than 20 g will dissolve.

Answer 91

D no salt will dissolve.

Answer 92

A the mass of solute that will dissolve in 100 ml of water

Answer 93

B the mass of solvent that will dissolve in 100 ml of water.

Answer 94

C the volume of water that 100 g of solute will dissolve in.

Answer 95

D the volume of water that 100 g of solvent will dissolve in.

Próximo

Unit 9 Material Changes Quiz

Descrição

Resumo de Recurso

Questão 1

Questão 2

Questão 3

Questão 4

Questão 5

Questão 6

Questão 7

Questão 8

Questão 9

Questão 10

Questão 11

Questão 12

Questão 13

Questão 14

Questão 15

Questão 16

Questão 17

Questão 18

Questão 19

Questão 20

Questão 21

Questão 22

Questão 23

Questão 24

Questão 25

Semelhante

	Criado por Jeffrey Piggott quase 7 anos atrás