1. At STP, how many liters of oxygen are required to react completely with 3.6 liters of hydrogen to form water? 2H2(g)+O2(g) -&
gt; 2H2O(g) a. 1.8 L
b. 3.6 L
c. 2.0 L
d. 2.4 L
2. Which conversion factor do you use first to calculate the number of grams of CO2 produced by the reaction of 50.6 g of CH4 with O2? The equation for the complete combustion of methane is: CH4(g) +2O2(g) -> CO2 + 2H2O(l)
a. 1 mol CH4/ 16.0g CH4
b. 2 mol O2/1 mol CO2
c. 16.0g CH4/1 mol CO4
d. 44.0g CO2/2 mol CO2
3. Which of the following statements is true about the following reaction? 3NaHCO3(aq) + C6H8)7(aq) -> 3CO2(g) + 3H2O(s) + Na3C6H5O7(aq)
a. 22.4 L of CO2(g) are produced for every liter of C6H8O7(aq) reacted.
b. 1 mole of water is produced for every mole of carbon dioxide produced.
c. 6.02 x 10^23 molecules of Na3C6H5O7(aq) are produced for every mole of NaHCO3(aq) used.
d. 54 g of water are produced for every mole of NaHC)3(aq) produced.
C. An atom of helium has its valence electrons in its first energy level, it wouldn't and can't satisfy the Octet rule as it only has 2 electrons, but with 2, it has a full shell, as the first energy level can hold only 2 electrons.
