halfterm 1 test

Question 1

adding salt to boiling water does what

Answer 1

lowers the boiling point and heats the water up faster

Question 2

describe the method to making copper sulphate crystals

Answer 2

(in book)

Question 3

what is the word equation for copper sulfate crystals

Answer 3

copper+ sulphuric acid-> copper sulphate+water

Question 4

what is the test for oxygen

Answer 4

relighting splint

Question 5

word equation for testing for oxygen

Answer 5

hydrogen peroxide—> water+oxygen
manganese oxide

Question 6

what is the test for hydrogen

Answer 6

squeaky pop

Question 7

word equation to find hydrogen

Answer 7

magnesium+hydrochloric acid-> magnesium chloride+hydrogen

Question 8

test for carbon dioxide

Answer 8

blowing into limewater and it turning milky

Question 9

word equation for the test for carbon dioxide

Answer 9

glucose+oxygen-> carbon dioxide+water
(respiration)

Question 10

draw how to collect gas over water and describe the method

Answer 10

(compare in book)

Question 11

sulfates are compounds made from..

Answer 11

sulfuric acid

Question 12

what is a precipitate

Answer 12

an insoluble salt

Question 13

what is an unsoluable salt called

Answer 13

a precipitate

Question 14

sulphuric acid makes a…

Answer 14

sulphate

Question 15

hydrochloric acid makes a…

Answer 15

chloride

Question 16

nitric acid makes a..

Answer 16

nitrate

Question 17

only … make precipitates

Answer 17

sulfates

Question 18

copper sulfate+barium chloride->

Answer 18

barium sulfate (precipitate) + copper chloride

Question 19

copper nitrate+ barium chloride->

Answer 19

barium nitrate(soluable-not a precipitate) + copper chloride

Question 20

compounds are made from…

Answer 20

halogens

Question 21

halogens are…

Answer 21

non-metals, form poisonous gases, when reacted with other substances they produce a compound called a halide

Question 22

chlorine produces a … compound

Answer 22

chloride

Question 23

bromine produces a … compound

Answer 23

bromide

Question 24

iodine produces an … compound

Answer 24

iodide

Question 25

as you go further down, the periodic table the halogens get…

Answer 25

darker in colour

Question 26

describe the method to find a precipitate

Answer 26

(in books under halides)

Question 27

what colour precipitate does magnesium chloride make?

Answer 27

white

Question 28

what colour precipitate does potassium bromide make?

Answer 28

Cream

Question 29

what colour precipitate does potassium iodine make?

Answer 29

Yellow

Question 30

what colour precipitate does copper sulphate make?

Answer 30

No precipitate

Question 31

magnesium, chloride + silver nitrate ->

Answer 31

Silver, chloride + magnesium nitrate

Question 32

potassium bromide + silver nitrate->

Answer 32

Silver bromide + potassium nitrate

Question 33

Potassium iodine + silver nitrate

Answer 33

Silver iodine + potassium nitrate

Question 34

Burning sodium chloride turns the flame..

Answer 34

Orange

Question 35

Burning lithium chloride turns the flame..

Answer 35

Red

Question 36

Burning barium chloride turns the flame..

Answer 36

Orange

Question 37

Burning calcium chloride turns the flame..

Answer 37

Red

Question 38

Burning potassium chloride turns the flame..

Answer 38

Pink

Question 39

Burning copper sulphate turns the flame..

Answer 39

Blue