Which of these equations does not represent an oxidation-reduction reaction?
a. 3Al + 6H...
Chemistry, 21.05.2020 02:04 mallardmya2006
Which of these equations does not represent an oxidation-reduction reaction?
a. 3Al + 6HCl → 3H2 + AlCl3
b. 2H2O → 2H2 + O2
c. 2NaCl + Pb(NO3)2 → PbCl2 + 3NaNO3
d. 2NaI + Br2 → 2NaBr + I2
Answers: 2
Chemistry, 21.06.2019 15:40
Achemistry student weighs out of phosphoric acid , a triprotic acid, into a volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with solution. calculate the volume of solution the student will need to add to reach the final equivalence point. round your answer to significant digits.
Answers: 3
Chemistry, 22.06.2019 02:00
In which of these cases are the two wave points considered to be in phase with each other?
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Chemistry, 22.06.2019 04:30
Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.
Answers: 2
Chemistry, 22.06.2019 06:00
24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm
Answers: 2
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