The bar chart shows the percentages of some gases in a sample of dry air from today's atmosphere - Edexcel - GCSE Chemistry - Question 1 - 2016 - Paper 1
Question 1
The bar chart shows the percentages of some gases in a sample of dry air from today's atmosphere.
The bar for the percentage of nitrogen is missing.
(i) The percen... show full transcript
Worked Solution & Example Answer:The bar chart shows the percentages of some gases in a sample of dry air from today's atmosphere - Edexcel - GCSE Chemistry - Question 1 - 2016 - Paper 1
Step 1
The percentage of nitrogen is 78. Add the bar to the chart to show this.
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Answer
To represent the percentage of nitrogen on the bar chart, draw a bar that reaches the 78% mark. The height of the bar should align with the 78% line on the vertical axis, accurately depicting the percentage value.
Step 2
Complete the sentence by putting a cross (✔) in the box next to your answer.
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Answer
The bar chart shows the percentage of oxygen in this dry air is 21. Thus, you should put a cross (✔) next to option C.
