How many liters of ch4(g), measured at 22.6 ∘c and 768 mmhg , must be burned to provide the heat needed to vaporize 3.82 l of water at 100 ∘c? δcombh=−8.90×102kjmol−1 ch4. for h2o(l) at 100 ∘c, d=0.958gcm−3 and δvaph=40.7kjmol−1.
express your answer in liters to three significant figures.

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h

The compound formed from 2 atoms of hydrogen and one atom of oxygen is