Question

Use the chemical reaction to answer the question c a c o 3 arrow CO2 + CAO a scientist heats 30 g of calcium carbonate CaCO3 in the chemical reaction show what is the total mass of the products 15 g 60 g 30 g or 10 g

Answer 1

The balanced chemical equation for the reaction is:

CaCO3 → CO2 + CaO

According to the law of conservation of mass, the total mass of the reactants should be equal to the total mass of the products.

Given that the scientist heats 30 g of calcium carbonate (CaCO3), the total mass of the products can be determined by looking at the coefficients in the balanced equation.

From the equation, it can be seen that 1 mole of CaCO3 will produce 1 mole of CO2 and 1 mole of CaO. The molar mass of CaCO3 is 100.09 g/mol.

So, 1 mole of CaCO3 has a mass of 100.09 g.

Since the molar ratio of CaCO3 to CO2 is 1:1, the mass of CO2 produced will also be 100.09 g.

Similarly, the molar ratio of CaCO3 to CaO is 1:1, so the mass of CaO produced will also be 100.09 g.

Therefore, the total mass of the products (CO2 + CaO) will be 100.09 g + 100.09 g = 200.18 g.

Thus, the correct answer is 200.18 g.