What is a physical property of a solid used to describe it's surface?

Express the following number in scientific notation. 0.026890 =

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.

Identify a strong intermolecular force of attraction between an alcohol