Consider the following intermediate reactions.
ch4(9)+202(g) → co2(g)+2h2o(g)
2h2o(g) → 2h2o(1)
ah, -- 802 kj
ah2=-88 kj
the overall chemical reaction is as follows.
ch4(9)+202(g) → co2(g)+2h2o(0)
ah2 -- 890 kj
what is the correct enthalpy diagram using the hess law for this system?

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

answer: h+ its less than oh

explanation:

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

pie chart because it is in percents ( % )