Calculate δso for the combustion of 1 mole of benzene:
2c6h6(l) + 15 o2(g) → 12co2(g) + 6 h2o (g)
using the following data:
substance c6h6(g) o2(g) co2(g) h2o (g).
δso (j/k. mol) 172.8 205 213.7 188.7
a) -31.2 j/k
b) -138 j/k
c) 138 j/k
d) 276 j/k
e) - 276 j/k

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas