Help please and thank you so much

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal