1. What do you get when 8 grams of oxygen react with 2 grams of hydrogen? (Atomic weight of oxygen: 16; atomic weight of hydrogen:1).

a. 9 grams of water and 1 gram of hydrogen.
b. 10 grams of water.
c. 18 grams of water.
d. 2 grams of water and 6 grams of oxygen.

Click Here for Answer

2. Consider the following statements:
I. Mixtures can be combined in any proporton
II. Compounds can only be combined in definite proportions
III. The properties of the compounds are usually substantially different from the properties of the individual elements that make up the compound

a. Only statements I & II are correct
b. Only statements II & III are correct
c. All three statements are correct
d. None of the statements are correct

Click Here for Answer