Chemistry, 12.10.2020 15:01 moneymaleia9264
Neil is comparing the shifts in light patterns of two distant galaxies. Using a powerful telescope, he records the light shifts of each galaxy every 20 seconds (s) for six hours (hr). After sharing his data with Betty, another astronomer, she says that this is not an experiment. Which of the following statements supports Betty's claim? A This is not an experiment because there are too many variables. B. This is not an experiment because no variables are manipulated. C. This is not an experiment because it uses only theoretical predictions. D. This is not an experiment because astronomers are not considered research scientists.
Answers: 1
Chemistry, 22.06.2019 07:00, haydjanggg6578
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.
Answers: 2
Chemistry, 22.06.2019 13:30, bryce99
In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.
Answers: 2
Chemistry, 22.06.2019 16:10, 00015746
Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)
Answers: 2
Neil is comparing the shifts in light patterns of two distant galaxies. Using a powerful telescope,...
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