What is the concentration of a solution with 5.00 moles of solute in 1.00 l of water

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

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

50 points! need answer asap. what type of organic compound contains the following functional group? (2 points)