Calculate the enthalpy change when 4.00 mol cl2o7 is produced according to the following balanced equation: 2cl2(g) + 7o2(g) + 130kcal -> 2cl2o7(g) a. 1040 kcal b. -260 kcal c. 260 kcal d. -1040 kcal ** if you could explain it as well, that would be much appreciated if not, thats okay too its multiple choice

Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)