ί1/ Gunpowder contains 75% of nitre and 10% of sulphur, and the rest

1.	ί1/ Gunpowder contains 75% of nitre and 10% of sulphur, and the rest of it is charcoal. Findthe amount of charcoal in 8 kg of gunpowder.Chalk contains 3% of carbon, 10% of calcium and i 2% of oxygen. Find the amount in gramsof each of these substances in 1 kg of chalk.12,
Answer» thanks but answer of second question

ί1/ Gunpowder contains 75% of nitre and 10% of sulphur, and the rest of it is charcoal. Findthe amount of charcoal in 8 kg of gunpowder.Chalk contains 3% of carbon, 10% of calcium and i 2% of oxygen. Find the amount in gramsof each of these substances in 1 kg of chalk.12,

Answer»

thanks

but answer of second question