8. Given the reaction Ca + 2H,0 - Ca(OH)2 + H2, what is the total number of moles of Ca need react completely with 4.0 mol of H,0?
a. 0.55 mol
b. 1.0 mol
C. 2.0 mol
d. 4.0 mol
les of H, O that
of KCIO,
9. Consider the reaction: CH (9) + 20,(9) - CO2(g) + 2H,0(9). How many moles of oxygen ar
needed for the complete combustion of 3.0 mol of CH (9)?
a. 2.0 mol
b. 3.0 mol
c. 4.0 mol
d. 6.0 mol
10. According to the reaction 2Al + 3H, SO. - 3H, + Al(SO4)3, the total number of moles of H, SC
needed to react completely with 5.0 mol of Al is
a. 2.5 mol
b. 5.0 mol
c. 7.5 mol
d. 9.0 mol
1
is presenting
11 Given the priuation Nin) + 3H (n) - NHYO) what is the total number of moles of H2SO4 needed to react completely with 5.0 mol of Al is...?