French Chalk Sticks | Box Of French Chalk | TEC Products
Mathematical Objects: Stick of Chalk | The Aperiodical
A stick of chalk closeup on the chalkboard. Stock Photo | Adobe Stock
White Chalk Stick at Rs 3/piece | Siluvathur Main Road | Dindigul | ID: 13313874562
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