How many grams of calcium chloride are needed to produce 10.0 g of potassium chloride? CaCl2 (aq) + K2CO3(aq) → 2KCl(aq) + CaCO3 (s)

A)29.8 g
B)3.36 g
C)14.9 g
D)7.44 g

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.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude