1
Q
After the chemical reaction is the mass the same
A
No, the mass of the products is greater because oxygen was added from the air when the magnesium was burnt
2
Q
12g of carbon reacted with 32g of oxygen. What was the mass
A
44g
3
Q
Why will the mass decrease when marble chips are reacted with acid
A
Carbon dioxide has been produced and lost in the atmosphere
4
Q
Is the mass the same for the products and reactants
A
Yes, in a chemical reaction the mass of the products is the same as the reactants
