End of Year Chemistry

Sodium carbonate + sulphuric acid --->

• Sodium chloride

• Copper sulphate

• Sodium sulphate

• sodium carbonate

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Alkali C is...

• Sodium chloride

• Sodium hydroxide

• Copper carbonate

• Sodium alkali

Tags

NGSS.MS-PS1-2

Why do you add the powder in excess (too much) powder?

• Neutralise all of the acid

• Control the speed of the experiment

• To make sure the reaction works

• None of the above

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How do you remove the excess (not used) powder?

• Boil it

• Evaporate it

• Filter it

• Dissolve it

Hydrochloric acid + Sodium Hydroxide --->

• Sodium chloride + hydrogen

• Sodium chloride + water

• Sodium chloride + carbon dioxide

• Sodium chloride + water + carbon dioxide

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Copper carbonate + Nitric acid --->

• Copper sulphate + carbon dioxide

• Copper nitrate + carbon dioxide

• Copper sulphate + carbon dioxide + water

• Copper nitrate + carbon dioxide + water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What type of reaction is shown by this word equation?

lead nitrate + sodium → sodium nitrate + lead

• Decomposition

• Thermite

• Displacement

• Neutralisation

In a displacement reaction, it is the ____________ reactive metal that is displaced from a compound.

• Heaviest

• Least

• Most

• Worst

Tags

NGSS.HS-PS1-1

Use the following observations to select the correct reactivity series (highest to lowest).

calcium + water: slow

sodium + water: fast

calcium + dilute acid: very fast

gold + dilute acid: no reaction

aluminium + dilute acid: fast

• calcium, sodium, aluminium, gold

• sodium, calcium, aluminium, gold

• sodium, aluminium, calcium, gold

• gold, aluminium, calcium, sodium

Tags

NGSS.MS-PS1-2

Who discovered the electron?

• Niels Bohr

• Democritus

• Joseph Thomson

• John Dalton