Which has the most electron pairs (both shared and unshared) around the central atom? a b c d (b) which has the most unshared pairs around the central atom? a b c d (c) do any have only shared pairs around the central atom? a b c d none?

Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

Areaction in which products can react to re-form reactants is

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.