What is grxn for the equation below? naoh(aq) + hcl(aq) h2o(l) + nacl(aq) –82.5 kj –29.7 kj 26,500 kj 27,000 kj

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)

Classify this reaction: 2al+n2-> aln.

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.