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Nady [450]
3 years ago
11

2. How does the way elements are grouped in the periodic table serve as an advantage to scientists?

Chemistry
1 answer:
Goryan [66]3 years ago
6 0
When looking down the groups the elements have an equal number of electrons in the outer shell. This means they react in a similar way making it easier for scientists to use. 
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A certain object has a volume of 25.0 ml and a mass of 100 g. what is the density of the object
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Density= mass/volume

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3 years ago
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The balanced chemical equation is given as:

2CH3CH2OH(l) → CH3CH2OCH2CH3(l) + H2O(l)

We are given the yield of  CH3CH2OCH2CH3 and the amount of ethanol to be used for the reaction. These values will be the starting point for the calculations.

Theoretical amount of product produced:
329 g CH3CH2OH ( 1 mol / 46.07 g ) ( 1 mol CH3CH2OCH2CH3 / 2 mol CH3CH2OH ) (74.12 g / mol ) = 264.66 g CH3CH2OCH2CH3 

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sashaice [31]
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Explanation:

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