If you have 267 mol of O2, how many moles of H2O would that produce? Identify the mole ratio
CH4 + 2 O2 - CO2 + 2 H2O

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.