PLS Help Which compounds represent atoms covalently bonded?
I. CO₂ II. NaO₂ III. Na₂O IV. MgBr₂ V. SO₃
A. III and IV
B. I, II, and V
C. II, and III
D. I and II

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

‘which reaction would most likely require the use of an inert electrode?

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?