What is the mole ratio of magnesium carbonate to magnesium oxide? MgCO3 →MgO+CO2 a)3:2 b) 1:3 c) 1:1 d) 1:2 e) 2:3

Liv sheldon given the balanced equation for an organic reaction: c2h2 + 2cl2 → c2h2cl4 this reaction is best classified as *

What are transitions between a liquid and gas called? identify which way they are transitioning

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)