What is the initial value, and what does the initial value represent in Julio’s experiment? What is the rate of change, and what does it represent in Julio ‘s experiment?

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.