Chalk contains 3 % carbon 10% calcium 12% oxygen find the amount in gms of these substances in 1 kg

Chalk contains 3 % carbon 10% calcium 12% oxygen find the amount in gm

1.	Chalk contains 3 % carbon 10% calcium 12% oxygen find the amount in gms of these substances in 1 kg
Answer» Carbon =3% calcium = 10% OXYGEN= 12% total amount = 1kg= 1000 grams carbon=3/100x1000=30grams calcium=10/100x1000=100grams oxygen= 12/100x1000=120grams