1. what is happening to the electrons in a covalent bond? 2. what type of elements form covalent bonds?
3. describe what’s happening in the potential energy graph as the 2 nuclei are moved closer together?
4. where are atoms the most stable?

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na,so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g

Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass