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Transition metals have many uses - Edexcel - GCSE Chemistry - Question 5 - 2020 - Paper 1

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Transition metals have many uses. (a) The pie chart in Figure 6 shows the uses of one transition metal. Calculate the percentage of this transition metal used in c... show full transcript

Worked Solution & Example Answer:Transition metals have many uses - Edexcel - GCSE Chemistry - Question 5 - 2020 - Paper 1

Step 1

Calculate the percentage of this transition metal used in construction.

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Answer

To find the percentage of the transition metal used in construction, we can use the total percentage from the pie chart.

Total percentages given:

  • Electrical equipment: 65%
  • Transportation: 7%
  • Coins: 3%

To find the construction percentage, we subtract these from 100%:

100 ext{ }- ext{ }65 ext{ }- ext{ }7 ext{ }- ext{ }3 = 25 ext{ %}

Thus, the percentage of this transition metal used in construction is 25%.

Step 2

Put ticks (✅) in the boxes in Figure 7 to show which statements are true and which statements are false.

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Answer

StatementTrueFalse
Iron is a poor conductor of heat✅
Iron can act as a catalyst✅
Iron forms compounds that are coloured✅
Iron has a low density✅
Iron has a very high melting point✅

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