The real basis of periodicity of elements is the electron
of their atoms.

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

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.

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11