Question

9.4 g of magnesium carbonate on heating give 4.4 g of carbon dioxide and 5.0 g magnesium oxide. Show that these observations are in agreement with the law of conversation of mass

Answer 1

Answer:

Law of conservation of mass states that the total sum of reactants is equal to the total sum of products.

here ,

reactants is Magnesium carbonate (MgCO3) of mass 9.4g

products are Carbon dioxide ( CO2) of mass 4.4 g and Magnesium oxide (MgO) of mass 5 g .

if we apply law of conservation of mass,

9.4 = 4.4 + 5

9.4 = 9.4

RHS = LHS

Hence proved .