4C2H5 + 13O2 8CO2 + 10H20
determine the number of moles of O2(g) required to completely
react with 15 moles of C2H5(g) during this reaction.

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.

What is the percent by mass of magnesium sulfate in mgso4.7h2o