Chemistry, 16.01.2020 00:31 gabriella80
Question 5 (essay worth 4 points)
(01.05 mc)
during an experiment vinegar was added to baking soda. the following observations were recorded.
observation 1: the container with the reaction mixture feels cooler.
observation 2: gas bubbles are released.
based on the observation, justify the type of change (physical or chemical) that took place.
Answers: 1
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This drawing shows a human body system. what is the primary function of this body system?
Answers: 3
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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 21:30
If 22.5 of nitrogen at 748 mm hg are compressed to 725 mm hg at constant temperature. what is the new volume?
Answers: 1
Chemistry, 23.06.2019 04:20
The graph shows one consequence of urban sprawl. how did urban sprawl contribute to the change in biodiversity
Answers: 2
Question 5 (essay worth 4 points)
(01.05 mc)
during an experiment vinegar was added to b...
(01.05 mc)
during an experiment vinegar was added to b...
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