How many calories are required to raise the temperature of a 35.0 g sample of iron from 25°c to 35°c? iron has a specific heat of 0.106 cal/g °c.

The crust of earth may a- continets and ocean floors. b-continents only. c-layers of sedimentary rocks and continents. d-all of the above

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?