4. Which best represents a balanced equation? * 120 grams of carbon plus 20 grams of oxygen
200
grams
of carbon dioxide
120 grams of carbon plus 50 grams of oxygen
-
200 grams of carbon dioxide
120 grams of carbon plus 80 grams of oxygen
200 grams of carbon dioxide
O 120 grams of carbon plus 70 grams of oxygen
200 grams of carbon dioxide

Amixture of gaseous sulfur dioxide and oxygen are added to a reaction vessel and heated to 1000 k where they react to form so3(g). if the vessel contains 0.669 atm so2(g), 0.395 atm o2(g), and 0.0851 atm so3(g) after the system has reached equilibrium, what is the equilibrium constant kp for the reaction: 2 so2(g) o2(g) ⇌ 2 so3(g)

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.