Year 8 quiz (25) (some Year 7 material) - Phoenix Hoyle | Library

6

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Mixture of elements and compounds

Mixture of elements

Mixture of compounds

1

Drag the correct labels

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Independent variable

Control variable

Dependent variable

1

As the difference in reactivity ______________ the temperature change will ______________ 

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increases

decreases

1

Click the dimples where a displacement reaction would occur and so the temperature would increase.

1

A student was investigating the reaction of lithium and water. She added a few drops of universal indicator to water in a trough and added a piece of lithium. The water turns blue as  
_____________________ is an alkali and universal indicator tuns _________  in alkaline solutions. Soluble metals oxides / hydroxides make _____________ solutions

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blue

alkaline

Sodium hydroxide

1

Gas tests
Confirmation of carbon dioxide ____________________________ 
Confirmation of hydrogen ____________________________ 
Confirmation of oxygen__________________________ 

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Gas explodes with a pop

lime water turns cloudy

A lit splint relights

1

Match the word to the correct category

Granite
marble
sandstone
Solidified magma
Formed by high heat and or pressure
layers of sediment

Igneous
Sedimentary
Metamorphic

8

Complete the equations

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sodium nitrate

+ hydrogen

Barium chloride

potassium sulfate

Lead nitrate

+ water

Iron (II) chloride

Zinc chloride

+ water + carbon dioxide

sodium sulfate

iron nitrate

3

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water condenses

Fuel

Carbon dioxide makes lime water go cloudy

1

The calcium carbonate solid gets ____________ 
____________ is observed

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larger

evaporation

fizzing

smaller

1

The mass of carbon dioxide gas produced _________  

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1.6g