How do electrons differ from protons and neutrons? a. they do not move. b. they are larger. c. they are not in a fixed position. d. they are located in the nucleus.

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

What is the percentage composition of carbon in the compound ch4