A linkage between two atoms formed by the sharing of electrons, or attraction is called a.

Can someone me with questions 15 to 17 plz.

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.

Which factor is likely to impact the possible number of compounds ?