Given the following reactions and subsequent ∆h values what is the ∆h for the reaction below?
4co2(g) + 2h2o(g) 2c2h2(g) + 5o2(g)
given:
c2h2+> c2h6 ∆h = -94.5kj
h2o > h2 + 1/2 o2 ∆h = 71.2kj
c2h6 + 7/2 o2 > 2co2 + 3h2o ∆h = -283kj

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.