Reaction: 1 C3Hg + 502 ---> 3 CO2 + 4H20 (propane & oxygen makes carbon dioxide & water)
If you have 0.5 moles of propane (C3H3) & react it with oxygen, how many moles of
CO2 are made?

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

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)