Which atom is the product (parent isotope) of beta decay of xenon-140?
140
Xe = ?+7e
54...
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Chemistry, 21.06.2019 20:00
Smog is the term used to describe the combination of fog and smoke
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Chemistry, 22.06.2019 00:00
What stress will shift the following equilibrium system to the left? n2(g) + 3h2(g) ⇌ 2nh3(g) adding more n2(g) adding more nh3(g) increasing the pressure of the system reducing the volume of the container
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Chemistry, 22.06.2019 01:30
(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?
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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
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