If a copper penny weighing 3.045 g is dissolved in a small amount a
of nitric acid and the resultant solution is diluted to 50.0 mL with
water, what is the molarity of the Cu(NO3)2?

150.0 grams of asf3 were reacted with 180.0 g of ccl4 to produce ascl3 and ccl2f2. if the actual yield of ccl2f2 was 127 g, what is the percent yield?

Which best describes how johannes kepler developed his laws of planetary motion

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.