The oxidation number of what atom or ion decreases in the following reaction?
i2 +2kcl 2ki + cl2

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Which terms are used to identify pure substances

Which statement characterizes synthetic polymers? a. they come from animals and plants. b. they are found in nature. c. they are made in a lab. d. they are components of starch.