Balance the following chemical equations. a) Ba Cl2 + H2SO4  BaSO4 + HCl.

b) Calcium hydroxide + Carbon dioxide  Calcium carbonate + Water.

c) Aluminum + Copper chloride  Copper + Aluminum chloride

d) Sulphur dioxide + Oxygen  Sulphur trioxide

e) NH3+ CuO  Cu + N2 + H2O

What are fructose and glucose an example of?

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.