the students in ms. green's science class dissolved four salts in water. students varied water temperature to see if more or less salt would dissolve in a constant volume of water. changing the water temperature made little difference in the amount of dissolved in 100 grams of water.
a) kbr
b) kno3
c) nacl
d) naclo3

Aregular polygon has angkes of size 150° each. how many side has the polygon

In an experiment, how can i change human errors? be specific.

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.