How many electrons are present in 4he2+?
1. 6
2. 4
3. 1
4. 2
5. 0
6. none of these
7. 3
8. 5

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

Iam 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?

Which proportionality applies to avogadro’s law?