Which chemical equation correctly represents the synthesis of calcium sulfite from calcium oxide and sulfur dioxide? CaSO3(s) → CaO(s) + SO2(g)
CaSO3(s) + O2(g) → CaO(s) + SO2(g)
CaO(s) + SO2(g) → CaSO3(s)
CaO(s) + SO2(g) → CaSO3(s) + O2(g)

a police officer and a ambulance

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.