BI-2150
Measuring length
Biology · Secondary 4 · Easy · Measuring length
A student measures the mass of a dry leaf and finds it is 2.0 g. The leaf contains 0.4 g of carbon.
What is the percentage of carbon in this leaf by mass?
What is the percentage of carbon in this leaf by mass?
- 20%
- 2%
- 5%
- 80%
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