Which of the following is the empirical formula for C4H8? A. CH4
B. C6H6
C. C2H2
D. CH2

Determine the mass of fuel required for the expected energy consumption in the united states for the next ten years. energy use per person per year in the united states = 3.5 x 1011joules base calculations on current population of 310,000,000.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Is 9 correct? and can someone me with 10? it’s due tomorrow, you