What is the spectator ion in the redox reaction? Note: The reaction below is not balanced. Al(s) +
Cr(NO3)2 (aq) – Cr (s) + Al(NO3)3 (aq)

a. A13+
b. Cr2+
c. NO3-1

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

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size