For the balanced equation shown below, if the reaction of 34.6 grams of C2H4F2 produces 6.90 grams of H2O, what is the percent yield? 2C2H4F2 + 3O2 → 4CO + 2H2O + 4HF

Based on the equation and the information in the table, what is the enthalpy of the reaction?

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

How much carbon is stored in the atmosphere as co2