Calculate the amount of heat energy, in kJ, needed to increase the temperature of 200g of water by 300 C.

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.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

Draw the structure for 5-isopropyl-2-methyl-3-nonene