X grams of calcium carbonate was completely burnt in air.The weight of solid residue formet is 28g,.What is the value of X (in grams )?

'X' grams of calcium carbonate was completely burnt in air. The weight of the solid residue formed is 28 g. What is the value of 'X' (in grams)

X' grams of calcium carbonate was completely burnt in air. The weight of the solid residue formed is 28 g. What is the value of "X'(in grams)?

x grams of calcium carbonate was completely burnt in air. The weight of the solid residue formed is 28 g. What is the value of x (in grams)?

x grams of calcium carbonate was completely burnt in air. The weight of the solid residue formed is 28 g. What is the value of x (in grams)?

50 grams of calcium carbonate was completely burnt in air. What is the weight (in grams) of the residue? Atomic weights of Ca, C and O are 40,12 and 16 respectively)