Chemistry, 24.07.2019 19:00 kemzzoo7206
Bromine, a liquid at room temperature, has a boiling point of 58°c and a melting point of -7.2°c. bromine can be classifies as a a) compound b)impure substance c)mixture d)pure substance
Answers: 1
Chemistry, 22.06.2019 07:30
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 но reagent a 2. н,о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.
Answers: 2
Chemistry, 22.06.2019 17:00
What is the approximate vapor pressure when the gas condenses at 70 degrees celsius
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Chemistry, 22.06.2019 22:00
If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution
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Chemistry, 22.06.2019 23:00
If two identical atoms are bonded,what kind of molecule is formed
Answers: 1
Bromine, a liquid at room temperature, has a boiling point of 58°c and a melting point of -7.2°c. br...
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