GCSE Chemistry - questions based on diagrams 2. - Phoenix Hoyle | Laabri

5

Place the metals in order of reactivity from most reactive at the top to least reactive at the bottom

Zn
Ca
Mg
Fe
Cu

6

Mmuae Afoforo a Wobɛpaw:

activation energy

a glowing splint

measuring cylinder

a lit splint

a pop sound and water forming

limewater

lime water going cloudy

catalyst

The glowing splint relighting.

graduated gas syringe.

4

Mmuae Afoforo a Wobɛpaw:

time

total volume of oxygen at 30s

30

1.3 cm³/s

40

8

Mmuae Afoforo a Wobɛpaw:

58-0

62

change in time

1.1 cm³/s

30s

58

change in volume of oxygen

70-8

2

Mmuae Afoforo a Wobɛpaw:

covalent

giant covalent

metallic

giant ionic

simple molecular

giant metallic

ionic

1

Mmuae Afoforo a Wobɛpaw:

exothermic

endothermic

3

Mmuae Afoforo a Wobɛpaw:

N₂

O₂

Ar

3

Mmuae Afoforo a Wobɛpaw:

white

silver

7

Classify the variable If this experimental technique was used to investigate different group 2 metal carbonates reactivates

Group II carbonate used
Volume of gas produced in 30s
time when volume was measured
amount of group 2 carbonate
Form of carbonate (powder / granule)
concentration of acid
Temperature of acid

Independent variable
dependent variable
Control variable

2

Mmuae Afoforo a Wobɛpaw:

endothermic

from orange to colourless

the limewater goes cloudy

exothermic

2

Mmuae Afoforo a Wobɛpaw:

hot

goes from orange to colourless

damp

white

1

Mmuae Afoforo a Wobɛpaw:

CO₂

HCl(g)

HCl(aq)

1

Mmuae Afoforo a Wobɛpaw:

Experiment A

Experiment B

Experiment C

3

Mmuae Afoforo a Wobɛpaw:

The volume of water heated

Temperature rise of the water

Type of fuel

2

Mmuae Afoforo a Wobɛpaw:

Energy change

Activation energy

4

Mmuae Afoforo a Wobɛpaw:

Aluminium oxide catalyst

long chain alkane

Delivery tube

Alkene

1

What is the reason that ionic compounds have high boiling points?

1

What is the reason that ionic compounds can conduct electricity when molten?

1

Melting point of simple covalent substances

1

GCSE Chemistry - questions based on diagrams 2.

GCSE Chemistry - questions based on diagrams 2.

Place the metals in order of reactivity from most reactive at the top to least reactive at the bottom

Classify the variable If this experimental technique was used to investigate different group 2 metal carbonates reactivates

What is the reason that ionic compounds have high boiling points?

What is the reason that ionic compounds can conduct electricity when molten?

Melting point of simple covalent substances

Melting point of simple covalent substances

Reason why simple molecular substances do not conduct when molten

Reason why simple molecular substances do not conduct when molten

Place the metals in order of reactivity from most reactive at the top to least reactive at the bottom

Classify the variable If this experimental technique was used to investigate different group 2 metal carbonates reactivates

What is the reason that ionic compounds have high boiling points?

What is the reason that ionic compounds can conduct electricity when molten?

Melting point of simple covalent substances

Melting point of simple covalent substances

Reason why simple molecular substances do not conduct when molten

Reason why simple molecular substances do not conduct when molten