What net ionic equation describes the reaction when these solutions are mixed? na3po4 (aq) + cacl2(aq) → na+(aq) + cl– (aq) → nacl(s) 2ca2+(aq) + na+(aq) → naca2(s) 2po43–(aq) + 3ca2+(aq) → ca3(po4)2(s) 2po43–(aq) + cl– (aq) → cl2(po4)3(s)

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space