Rebecca Ryder
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Quiz on Additional Science-Chemistry, created by Rebecca Ryder on 23/10/2014.

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Rebecca Ryder
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Additional Science-Chemistry

Question 1 of 21

1

What is the charge and mass of an electron

Select one of the following:

  • charge=+1
    mass=1

  • charge=-1
    mass=1

  • charge=-1
    mass=1/2000

Explanation

Question 2 of 21

1

Which ones are the correct state symbols?

Select one or more of the following:

  • Solid - s

  • Liquid - lq

  • Gas - g

  • Aqueous - a

Explanation

Question 3 of 21

1

What do ionic bonds form?

Select one or more of the following:

  • Ion

  • Element

  • Compound

Explanation

Question 4 of 21

1

What happens to electrons in ionic bonding?

Select one of the following:

  • a metal loses electron(s) and a non-metal gains electron(s).

  • a metal gains electron(s) and a non-metal loses electron(s).

Explanation

Question 5 of 21

1

In ionic bonding, which charged particles attract?

Select one of the following:

  • positive with positive

  • negative with negative

  • positive with negative

Explanation

Question 6 of 21

1

What are the correct properties of giant ionic compounds?

Select one or more of the following:

  • it conducts as a liquid and as a solid as the electrons are free to move

  • they are very brittle and break when hit

  • they have extremely low melting points due to lots of bonds

  • they are soluble in water

Explanation

Question 7 of 21

1

NH3 is ammonia

Select one of the following:

  • True
  • False

Explanation

Question 8 of 21

1

compounds such as carbon dioxide (CO2), chlorine (Cl2) and water (H2O) are called simpelr molecular compounds.

Select one of the following:

  • True
  • False

Explanation

Question 9 of 21

1

what are the correct properties of a simple covalent compounds

Select one or more of the following:

  • low melting point

  • strong covalent bonds between atoms

  • strong intermolecular forces

  • doesn't take a lot of energy to break the bonds

  • not usually a gas

  • no electrical conductivity

  • doesn't conduct as a solid or liquid but does conduct as a gas

  • there are no charged particles

Explanation

Question 10 of 21

1

Diamond is made up of carbon atoms. Each carbon atom has four strong bonds and is very hard.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 21

1

diamond is a simple covalent structure

Select one of the following:

  • True
  • False

Explanation

Question 12 of 21

1

Does diamond have a low or high melting point?

Select one of the following:

  • Low melting point

  • High melting point

Explanation

Question 13 of 21

1

diamond can conduct electricity

Select one of the following:

  • True
  • False

Explanation

Question 14 of 21

1

Tick the correct statements in reference to Graphite

Select one or more of the following:

  • made up of carbon atoms

  • has 5 strong bonds

  • atoms form layers

  • contains delocalised electrons

  • the delocalised electrons are not free to move

  • cannot conduct electricity

  • layers can slide over each other

  • graphite is soft

  • low melting point

Explanation

Question 15 of 21

1

metals are soft and malleable

Select one of the following:

  • True
  • False

Explanation

Question 16 of 21

1

metals are weak

Select one of the following:

  • True
  • False

Explanation

Question 17 of 21

1

they are good conductors of electricity

Select one of the following:

  • True
  • False

Explanation

Question 18 of 21

1

they are poor conductors of heat

Select one of the following:

  • True
  • False

Explanation

Question 19 of 21

1

what is an alloy?

Select one of the following:

  • a pure metal

  • a mixture of metals

  • a mixture of metals and non-metals

Explanation

Question 20 of 21

1

a metallic bond is the bonding of the free electrons in metals.

Select one of the following:

  • True
  • False

Explanation

Question 21 of 21

1

the attraction is between neutral metal ions and delocalised electrons

Select one of the following:

  • True
  • False

Explanation

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