Studying and going over my wrong answers so i can do well on

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) > 2h2o(l)

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided