When 5g of calcium is burnt in 2g of oxygen then 7g of calcium oxide is produced. What mass of calcium oxide will be produced when 5g of calcium is burnt in 20g of oxygen? Which law of chemical combination will govern your answer?
When 5g of calcium is burnt in 2g of oxygen then 7g of calcium oxide is produced. What mass of calcium oxide will be produced when 5g of calcium is burnt in 20g of oxygen? Which law of chemical combination will govern your answer?
According to law of conservation of mass; the total mass of is constant during a chemical reaction, i.e, total mass of reactant = total mass of products.
Thus, any reaction can occur only when the mass of reactant used and product formed are equal.
Using the law of constant proportions, calcium and oxygen react in a fixed ratio.
When 5g of calcium is burnt in 2g of oxygen then 7g of calcium oxide is produced.
2Ca+O2⟶2CaO
5g 2g 7g
For the formation of CaO
7g of calcium oxide will be formed when 5g of calcium will react with 20g of oxygen. The remaining oxygen will remain unreacted.
As Ca and O2 will react in the fixed ratio, hence follows the law of constant proportion.
According to law of conservation of mass; the total mass of is constant during a chemical reaction, i.e, total mass of reactant = total mass of products.
Thus, any reaction can occur only when the mass of reactant used and product formed are equal.
Using the law of constant proportions, calcium and oxygen react in a fixed ratio.
When 5g of calcium is burnt in 2g of oxygen then 7g of calcium oxide is produced.
2Ca+O2⟶2CaO
5g 2g 7g
For the formation of CaO
7g of calcium oxide will be formed when 5g of calcium will react with 20g of oxygen. The remaining oxygen will remain unreacted.
As Ca and O2 will react in the fixed ratio, hence follows the law of constant proportion.
