Which of the following is used to answer scientific questions? A. Experiments

B. Intuition

C. Opinion polls

D. Imagination

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.