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13. Chalk contains 10% calcium, 3% carbon, 12% oxygen and the remaining sand.Find the anocunt of caron and calcium (in gramy) in 2 kg of chalk. Also find

Answer»

10% 1kg means 10*1000/100=100gramscalcium=100grams3% carbon means 3*1000/100=30gramcarbon=30grams12% oxygen means 12*1000/100=120gramsoxygen=120grams



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