Chemistry, 05.05.2020 12:32 asenath6477
Which of these equations does not represent an oxidation-reduction reaction?
a. 3Al + 6HCl โ 3H2 + AlCl3
b. 2H2O โ 2H2 + O2
c. 2NaCl + Pb(NO3)2 โ PbCl2 + 3NaNO3
d. 2NaI + Br2 โ 2NaBr + I2
Answers: 3
Chemistry, 22.06.2019 21:50
Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?
Answers: 2
Chemistry, 22.06.2019 23:00
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, 23.06.2019 05:00
How many atomic mass units are equal to 1.672ร10โ24 g of protons?
Answers: 3
Which of these equations does not represent an oxidation-reduction reaction?
a. 3Al + 6HCl โ 3...
a. 3Al + 6HCl โ 3...
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