What is the electron configuration for oxygen with a 2- charge (

How much energy is made when a pice of wood burns. how do you know

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.

Using data from seismic waves, geologists have learned that earth’s interior is made up of several