Compare the compressibility of solids and liquids. Support your answer by describing the arrangement of particles in solids and liquids. (5 points)

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease

How many neutrons does an element have if its atomic number is 50 and its mass number is 166