Which of the following will have the highest melting point naphthalene C8H10 c. quartz SiO2 methane CH4 d. ethanol C2H5OH

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.

What is the percent by mass of oxygen in fe2o3

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule