2. Обчисліть та позначте відповідно масові частки Калію, Мангану, Оксигену KMnO4- A) 24,78%; 34,71%; 40,51%.
B) 24,88%; 34,71%; 40,4%.
b) 24,68%; 34,81%; 40,51%.
T) 25%; 35%; 40%.

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

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.