How much H2 gas at STP can be produced by the reaction
2 Na(s) + 2 H2O(l) –>H2(g) + 2NaOH(aq)
of 4.50 g of Na and excess water?
Answer in units of L. Your answer must be
within + 3.0%

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.

What is the correct lewis dot structure for arsenic?