Put the following metals in order of reactivity.

Iron, potassium, copper, zinc, lead, calcium, magnesium, sodium, gold

Most reactive

Least reactive

Complete the equations

metal + oxygen → …………………….

metal + water → ……………………. + …………………….

metal + acid → ……………………. + …………………….

What is formed when magnesium burns in air?

…………………….…………………….…………………….…………………….

What happens when copper is put into a beaker of water?

…………………….…………………….…………………….…………………….

How do you test for hydrogen gas?

…………………….…………………….…………………….…………………….

What is formed when sodium reacts with hydrochloric acid?

…………………….…………………….…………………….…………………….

How should metals more reactive than carbon be extracted from their ores?

…………………….…………………….…………………….…………………….

Why is gold used in jewelry?

…………………….…………………….…………………….…………………….

What is the rule for displacement reactions?

…………………….…………………….…………………….…………………….

Tick which reactions would happen

copper

Magnesium

zinc

copper sulfate

Magnesium

sulfate

Zinc Sulfate

Using the reactions from Q10. Choose 1 reaction you’ve ticked and explain why it happens. Choose 1 reaction you haven’t ticked and explain why it doesn’t happen.

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

Write word and symbol equations for the first reaction from Q11.

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

Question

02-02-2021
Chemistry

Answered

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Put the following metals in order of reactivity.

Iron, potassium, copper, zinc, lead, calcium, magnesium, sodium, gold

Most reactive

Least reactive

Complete the equations

metal + oxygen → …………………….

metal + water → ……………………. + …………………….

metal + acid → ……………………. + …………………….

What is formed when magnesium burns in air?

…………………….…………………….…………………….…………………….

What happens when copper is put into a beaker of water?

…………………….…………………….…………………….…………………….

How do you test for hydrogen gas?

…………………….…………………….…………………….…………………….

What is formed when sodium reacts with hydrochloric acid?

…………………….…………………….…………………….…………………….

How should metals more reactive than carbon be extracted from their ores?

…………………….…………………….…………………….…………………….

Why is gold used in jewelry?

…………………….…………………….…………………….…………………….

What is the rule for displacement reactions?

…………………….…………………….…………………….…………………….

Tick which reactions would happen

copper

Magnesium

zinc

copper sulfate

Magnesium

sulfate

Zinc Sulfate

Using the reactions from Q10. Choose 1 reaction you’ve ticked and explain why it happens. Choose 1 reaction you haven’t ticked and explain why it doesn’t happen.

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

Write word and symbol equations for the first reaction from Q11.

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

Sagot :

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