A mixture is made by combining 1.82 lb of salt and 4.29 lb of water. What is the percentage of salt (by mass) in this mixture?

1) this is the structure in the cell nucleus that houses a cell's genetic information

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Can someone me with 3 and 4 plz. this is for masteries test.