Calculate the work of expansion accompanying the complete combustion of 10.0 g of sucrose (c12h22o11) to carbon dioxide and (a) liquid water, (b) water vapour at 20°c when the external pressure is 1.20 atm. assume ideal gas conditions and expansion.

Achef makes salad dressing by mixing oil, vinegar, and spices, as shown. which type of matter is the salad dressing?

Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!