Which of the following equations is balanced for charge and mass? a. s(s) + 2h+ h2s(g) + 2e– b. s(s) + 2h+ + 2e– h2s(g) c. s(s) + 2e- h2s(g) d. s(s) + 2h+ h2s(g)

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?

We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?

The term gas is limited to those substances that exist in the gaseous state at