Answer:
3kg
Explanation:
Sand, also known as silicon dioxide, is the main component of glass. If a glass blower used 10 kg of sand, combined with .5 kg of sodium carbonate and 1.5 kg of calcium oxide to produce a glass bowl with a mass of 9 kg, how much material was wasted?
mass of sand=10kg
mass of sodium carbonate=0.5kg
calcium carbonate=1.5kg
glass bowl=9kg
SiO2+CaO+NaCO3----->Glass bowl+residue
10+0.5+1.5=9+x
x=12-9
x=3kg
the mass of material wasted is 3kg