Which is classified as a salt ammonia or sodium chloride?

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )