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(i) Chalk contains calcium, carbon and o...

(i) Chalk contains calcium, carbon and oxygen in the ratio `10` : `3` : `12`. Find the percentage of carbon in chalk.
(ii) If in a stick of chalk, carbon is `3` `g`, what is the weight of the chalk stick?

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To solve the given question step by step, we will break it down into two parts as per the question. ### Part (i): Finding the percentage of carbon in chalk 1. **Understanding the Ratio**: The ratio of calcium, carbon, and oxygen in chalk is given as 10:3:12. This means: - Calcium = 10 parts - Carbon = 3 parts - Oxygen = 12 parts ...
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