Which kind of reaction does this graph represent? A. endothermic because AHrxn = -876.8 kJ

B. endothermic because A Hoxn = 876.8 kJ

C. exothermic because Ahox = -1,099.6 kJ

D. exothermic because AHoxn = 1.099.6 kJ

How air particles exert a pressure on the inside of the balloon

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

What are transitions between a liquid and a solid called? identify which way they are transitioning