What is the molecular shape of hcn? bent linear angular trigonal pyramidal

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 moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

What type of reaction fuels the processes seen here?