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

5

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

Zn
Fe
Ca
Mg
Cu

6

Drugi mogući odgovor:

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

Drugi mogući odgovor:

time

total volume of oxygen at 30s

30

1.3 cm³/s

40

8

Drugi mogući odgovor:

58-0

62

change in time

1.1 cm³/s

30s

58

change in volume of oxygen

70-8

2

Drugi mogući odgovor:

covalent

giant covalent

metallic

giant ionic

simple molecular

giant metallic

ionic

1

Drugi mogući odgovor:

exothermic

endothermic

3

Drugi mogući odgovor:

N₂

O₂

Ar

3

Drugi mogući odgovor:

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

Drugi mogući odgovor:

endothermic

from orange to colourless

the limewater goes cloudy

exothermic

2

Drugi mogući odgovor:

hot

goes from orange to colourless

damp

white

1

Drugi mogući odgovor:

CO₂

HCl(g)

HCl(aq)

1

Drugi mogući odgovor:

Experiment A

Experiment B

Experiment C

3

Drugi mogući odgovor:

The volume of water heated

Temperature rise of the water

Type of fuel

2

Drugi mogući odgovor:

Energy change

Activation energy

4

Drugi mogući odgovor:

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