26. For each of the following balanced equations, calculate how many grams of each product would be pro- duced by complete reaction of 15.0 g of the reactant
indicated in boldface.
a. 2BC13(s) + 3H2(3) → 2B(s) + 6HCl(3)
b. 2Cu2S(s) + 302(g) → 2Cu2O(s) + 2802(g)
c. 2Cu2O(s) + Cu2S(s) + 6Cu(s) + SO2(8)
d. CaCO3(s) + SiO2() → CaSiO3(s) + CO2(3)

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Which statement can best be concluded from the ideal gas law?

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size