2.54 mL of ethanol to mol ethanol

How many atoms are in 1.4 mil of phosphorus trifluoride (pf3)

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

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.