Arock sample weighing 5.88 x 10-4 g is known to contain calcium, phosphorus, and oxygen. the amount of the first two elements in this rock is found to be 2.28 x 10-4 g and 1.18 x 10-4 g respectively. what is the empirical formula for the compound in this rock sample?
Answers: 2
Chemistry, 22.06.2019 01:40, natannale
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.
Answers: 1
Chemistry, 22.06.2019 06:30, Pizzapegasus1
Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
Answers: 1
Chemistry, 22.06.2019 20:50, iluminatioffial9699
One nanometer is equal to how many meters?
Answers: 2
Arock sample weighing 5.88 x 10-4 g is known to contain calcium, phosphorus, and oxygen. the amount...
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