Next study the book inside details 1.differences between solution, suspension, colloid
2.how can we obtain coloured component (dye ) from the black ink? Pg. no19
3.separating funnel technique
4.sublimation process of camphor
5.chromatography technique
6.distillation
7.fractional distillation
8.flow chart for the separation of gases from air
9.difference between mixture and compound, homogeneous and heterogeneous mixture

What does standard deviation reveal about data? a. the average of all the data points b. which of the data points is most reliable c. how spread out the data points are d. the percent error included in the data

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.