HELOOPP Which chemical equation models a synthesis reaction? (will mark brainliest)

A. CO2 → C +O2

B.
2Na + MgCl2 → 2NaCl _ Mg

0C.
HCl + LiOH → LiCl + H2O

D.
H2O + CO2 → H2CO3

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Stage in which a typical star has completely stopped fusion

If i add water to oil what will happen