135 g S2Cl2 were dissolved in water. Volume of solution is 100L.
Find pH of the solution.
Ka1(H2S) = 1.0-10^-7
Ka2(H2S) = 2.5-10^-13 Ka1(H2SO3) = 1.4.10^-2 Ka2(H2SO3) = 6.2.10^-8
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Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

Classify this reaction: 2al+n2-> aln.

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.