you can use the following balanced reaction to prepare hydrogen gas: CaH2 + 2H2O = Ca(OH)2 + 2H2. how many grams of H2 will result from the reaction of 100g of CaH2 with excess H2O

The arrangement of particles is most ordered in a sample of

A2.5% (by mass) solution concentration signifies that there is a 2.5 % (by mass) solution concentration signifies that there is blank of solute in every 100 g of solution. of solute in every 100 g of solution

Select all the correct answers.which compounds have the empirical formula ch20? (multiple answers)a.c2h4o2b.c3h603c.ch2o2d.c5h1005e.c6h1206