Calculate the mass of Mg metal requied to consume 2560g of CO2 in the reaction 2Mg+CO2 → 2MgO + C

Answer 1

2Mg + CO2 → 2MgO + C

mols CO2 = g CO2/molar mass CO2 = ?
Using the coefficients in the balanced equation convert mols CO2 to mols Mg needed. That's mols Mg = mols CO2 x (2 mol Mg/1 mol CO2)
Now convert mols Mg to grams Mg. That's g Mg = mols Mg x molar mass Mg

Post your work if you get stuck.

Answer 2

Numerical problem