How are elements in the same group in the periodic table alike

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.

What human activity increases beach erosion?

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa