What is the periodic table based on? 1. the mass of atoms.2. the charge of atoms.3. the structure of atoms.4. the color of atoms.

Why do consumers feel warmer after eating a meal

How does litmus paper indicate an acid?

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.