When the following equation is balanced, what is the coefficient for HCl? Mg(s) + HCl(aq) → MgCl2 (aq) + H2(g)

2

1

3

6

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