Chemistry, 15.06.2020 10:57, rebecca0022
. In which reaction is nitric acid acting as an oxidising agent? A. CuO + 2HNO3 β Cu(NO3)2 + H2O B. Cu + 4HNO3 β Cu(NO3)2 + 2H2O + 2NO2 C. Na2CO3 + 2HNO3 β 2NaNO3 + H2O + CO2 D. NaOH + HNO3 β NaNO3 + H2O
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Chemistry, 22.06.2019 07:30, SchoolFirst9811
The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a Π½ΠΎ reagent a 2. Π½, ΠΎ" thΠΎ oh Π½ΠΎΠ½-Ρ compound a. compound b. compound c .ch-ΠΎh 1. reagent b "ΡΠ½ΠΎ 2. reagent c Ρh oh compound e. compound d.
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Chemistry, 22.06.2019 12:20, tenleywood
The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397
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. In which reaction is nitric acid acting as an oxidising agent? A. CuO + 2HNO3 β Cu(NO3)2 + H2O B....
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