Chemistry, 21.10.2020 23:01 unicornsflyhigh
Carbon dioxide (CO2) is a greenhouse gas. It traps the heat in the atmosphere. Humans have used fossil fuels for only the last few hundred years. When burned, fossil fuels release CO2 into the atmosphere. Why do you think our fossil fuel use is a concern for environmental scientists?
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Chemistry, 21.06.2019 20:10
Starch and are common polysaccharide carbohydrates found in plants. sucrose glycogen fructose cellulose
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Chemistry, 21.06.2019 22:30
Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.
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Chemistry, 22.06.2019 04:30
In which phase(s) do the molecules take the shape of the container?
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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
Carbon dioxide (CO2) is a greenhouse gas. It traps the heat in the atmosphere. Humans have used foss...
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