The student is now told that the four solids, in no particular order, are magnesium bromide (mgbr2), sugar (c6h12o6), benzoic acid (c6h5cooh), and sodium bromide (nabr). assuming that conductivity is correlated to the number of ions in solution, rank the four substances based on how well a 0.20 m solution in water will conduct electricity. rank from most conductive to least conductive. (a) acetic acid (b) magnessium bromide (c) sugar (d) potassium bromide

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.

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?

One nanometer is equal to how many meters?