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Flashcards in C1 Part 1 Deck (33)
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1

Name two metals that can be extracted by reduction with carbon

Any two metals that are less reactive than carbon e.g. iron and tin

2

Give the word equation for the reduction of a metal oxide with carbon

Metal oxide + carbon → metal + carbon dioxide

3

Give the symbol equation for the reduction of tin oxide with carbon

SnO2 + C → Sn + CO2

4

What is the environmental impact of CO2?

Greenhouse effect leading to climate change.

5

Iron has a mass number of 56.  Each iron atom contains 26 protons.  How many neutrons does it have?

30

6

Describe how limewater is used to test for carbon dioxide.

The gas is bubble through limewater.  If the limewater goes cloudy then the gas is carbon dioxide.

7

Give a word equation for the thermal decomposition of zinc carbonate.

Zinc carbonate → Zinc oxide + carbon dioxide

8

Give a balanced symbol equation for the thermal decomposition of zinc carbonate.

ZnCO3 → ZnO + CO2

9

Name the 3 chemicals shown in the lime cycle.

  • Calcium carbonate
  • Calcium Oxide
  • Calcium Hydroxide

10

What is a hydrocarbon?

A compound containing only hydrogen and carbon

11

Draw the displayed formula for butane (C4H10)

12

Name the first 4 alkanes

  1. Methane
  2. Ethane
  3. Propane
  4. Butane

13

What is the name of the process used to separate the hydrocarbons in crude oil?

Fractional Distillation

14

Skecth an atom.  Label the nucleus and the electrons.

15

What are the symbols for:

a) Carbon

b) Calcium

C) Sodium

Carbon - C

Calcium - Ca

Sodium - Na

16

Which elements properties are more similar to magnesium's:  calcium or iron?

 

Explain why.

Calcium - it is closer to magnesium in the periodic table

17

Describe how you would work out the electronic structure of an atom given its atomic number.

The total number of electrons is equal to the atomic number.

Electrons fill shells closest to the nucleus first.

Each shell has maximum number of electrons that it can hold.

2 in the 1st, 8 in the 2nd, 8 in the 3rd, 18 in the 4th.

This matches the structure of the periodic table.

18

Describe the process of ionic bonding.

Metal atoms lose electrons to become positive ions (cations)

Non-metals gain electrons to become negative ions (anions)

Cations and anions have opposite charges so are attracted to one another.

19

What is covalent bonding?

The sharing of electrons between non-metal atoms.

A covalent bond is a pair of shared electrons.

20

What are the products when limestone (calcium carbonate) reacts with sulphuric acid?

Calcium sulphate + water + carbon dioxide

21

What is calcium hydroxide used for?

Neutralising acid soil or lakes.

22

Name 3 building materials made from limestone.

Cement

Mortar

Concrete

23

What is the definition of an ore?

A rock that contains enough metal to make it worthwhile extracting the metal from it.

24

Give a reason why aluminium is expensive.

It is extracted by electrolysis which uses large amounts of expensive electricity.

25

What is electrolysis?

The breaking down of a substance using electricity.

26

What is the name of the process where plants are used to extract metals from the soil?

Phytomining

27

Give 3 reasons why it is good to recycle metals.

It takes less energy (fossil fuels) that mining and extracting new metals.

There is a finite amount of metal available in the Earth's crust - we are running out.

It cuts down on waste going to landfill sites.

28

Give 3 properties of metals.

Malleable (bent easily)

Good conductors of heat

Good conductors of electricity

29

Give 3 examples of alloys and say what is in them.

Solder - Lead & Tin

Brass - Copper & Zinc

Bronze - Copper & Tin

30

What is the general formula of an alkane?

CnH2n+2