[" (i) chalk contains colcium,carban and axygen "],[" in the thatio "10:3:12" .Find the Percentage "],[" of carban in challe."]

Chalk contains calcium, carbon and oxygen in the ratio 10:3:12. Find the percentage of carbon in chalk.

Chalk contains calcium, Carbon and oxygen in the ratio 10:3:12. Find the percentage of carbon in chalk.

(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?

(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 3g, what is the weight of the chalk stick?

Chalk contains 10% calcium, 3% carbon and 12% oxygen. Find the amount of carbon and calcium (in grams) in 2""1/2" kg of chalk.

A sample of clay was partially dried. It then contained 50% slica and 7% water. The original clay contained 12% water find the percentage of silica in the original sample

A sample of clay was partially dried. It then contained 50% slica and 7% water. The original clay contained 12% water find the percentage of silica in the original sample

A sample of clay was partially dried. It then contained 50% slica and 7% water. The original clay contained 12% water find the percentage of silica in the original sample

chalk contains 3% of carbon 10% of calcium and 12% of oxigen find the amount in grams of each of these substances in 1 kg of chalk