Chemistry, 13.07.2019 08:00 jahnoibenjamin
Analysis of a volatile liquid shows that it contains 48.64% carbon, 8.164% hydrogen, and 43.20% oxygen by mass. at 150.°c and 1.00 atm, 500. ml of the vapor has a mass of 2.133 g. what is the molecular formula of the compound? (1) c3h6o (2) c3h6o2 (3) c6h12o2 (4) c6h12o4 (5) c9h8o2
Answers: 1
Chemistry, 22.06.2019 23:00, liv467
Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?
Answers: 3
Chemistry, 22.06.2019 23:30, adamgala3885
The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth
Answers: 1
Chemistry, 23.06.2019 08:00, 91miketaylor
Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.
Answers: 3
Analysis of a volatile liquid shows that it contains 48.64% carbon, 8.164% hydrogen, and 43.20% oxyg...
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