Was mass conserved in the reaction of iron and sulfur?

What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon

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.

Draw two cyclic constitutional isomers of cis-1