Which of the following is false? 1. the mass of a hydrogen atom is about the same as a proton 2. the mass of a proton is much greater than the mass of an electron 3. the mass of protons and neutrons are about the same 4. the mass of neutrons and electrons are about the same

Which is the most likely way an automotive engineer would use chemistry

What is the number of atoms in 3.54 mol s

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant