The chemical equation below shows the combustion of methane (CH4). CH4 2O2 Right arrow. CO2 2H2O The molar mass of oxygen gas (O2) is 32. 00 g/mol. The molar mass of carbon dioxide (CO2) is 44. 01 g/mol. What mass of CO2, in grams, will form when 8. 94 g O2 completely react? 3. 25 6. 15 13. 0 53. 0.

Aphysical reaction is a process in which one or more reactants change into one or more products with different properties. select the best answer from the choices provided t f

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %