Why do atoms always react in simple whole number ratios by moles? What does this mean?

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.

Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part

Which statement best explains the relationship between an area is geography and the temperature of its surface water