I need help ASAP pls the last question

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

How many grams of mgbr2 are needed to produce 75g or metal?

Explaining why atoms bondcomplete the sentence.atoms form chemical bonds to satisfy the    rule and to become  .