c. Democritus'
Chemistry, 09.11.2020 22:10 eileentennyson
Atomic theory that states that atoms are featureless and solid:
a. Modern
c. Democritus'
b. Dalton's
d. none of the above
Answers: 1
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Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
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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 18:00
How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.
Answers: 3
Atomic theory that states that atoms are featureless and solid:
a. Modern
c. Democritus'
c. Democritus'
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