Which combination of elements below will bond ionically and in the same ratio as lithium when it bonds to sulfur? a) carbon and oxygen b) sodium and oxygen c) calcium and nitrogen d) aluminum and chlorine

For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar