Study the diagram of a cell. Which structure is found only in plant cells and functions in the process of photosynthesis?WXY

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Give the orbital configuration of the phosphorus (p) atom.

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.