Is the following reaction a synthesis or a decomposition reaction? H2O (l) + CO2 (g) --> H2CO3 (l)

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