Chalcopyrite, the principal ore of copper (cu), contains 34.63 percent cu by mass. how many grams of cu can be obtained from 7.35 x 10^3 kg of the ore?

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

How does blood clotting prevent the entry of pathogens through cuts and wounds? answer asap,, this is due tomorrow. will mark as brainliest or whatever you call it : )