Need asap what is the density of an object with a mass of 12.0 g and a volume of 80.0 cubic centimeters? 0.2 g/cm3 0.15 g/ cm3 0.150 g/ cm3 0.20 g/ cm3

Complete the following reactions using word and balanced equations including states. dilute phosphoric acid is added with a calcium hydroxide solution.

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.

Geothermal energy for industrial use is available almost anywhere. a.true b.false