What sample contains more molecules: 0.175 moles of Na3PO, or 0.225 moles copper (1) chloride? Explain your reasoning mathematically.

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need