This question is about brass.
Brass is an alloy of copper and zinc.
What is meant by an alloy?
Table 1 shows the percentages of zinc and copper in two types of brass.
Table 1
Copper (%) | Zinc (%) | |
Yellow brass | 65 | X |
Red brass | 92 | 8 |
Calculate value X in the table.
Calculate the mass of copper in 200 g of red brass.
Which is a use of brass?
Circle one answer.
Making jewellery | Making ornaments | Making cutlery |
Why is the yellow brass harder than red brass?
Use Table 1 to help you.
Tick (✓) two boxes.
The layers are more distorted | |
It contains more zinc | |
It contains more copper | |
The layers can more easily slide over each other |
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