wethekings123 wethekings123 10-11-2017 Mathematics contestada Which equation is an example of a synthesis reaction? A. CaO + CO2 → CaCO3 B.2NaCl → 2Na + Cl2 C. HCl + NaOH → NaCl + H2O D. MgI2 + Cl2 → MgCl2 + I2