Which of the following describes the physical state of the layers of the earth from the outside to the center? a. solid, liquid, solid, partially melted b. solid, partially melted, liquid, solid c. solid, liquid, partially melted, solid d. solid, solid, partially melted, liquid

What is the relation between concentration of reactants and the rate of chemical reaction?

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 correct lewis dot structure for arsenic?