A coin is 3.00% Cu by mass. If the mass of the coin is 4.0561g, how many moles of Cu does it contain

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.

Quiz1. which physical state of nitrogen has the highest entropy? a solid© b gasoc liquid

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons