Explain what is oxidised in this reactibn:
Mg + CuSO. – Cu + MgSO4
(2 Points)

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

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.

How does the atmosphere to make earth livable? check all that apply. causes the seasons contains oxygen provides warmth creates important nutrients blocks harmful energy from the sun plz like !