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Elanso [62]
3 years ago
13

Choose all the answers that apply.

Chemistry
1 answer:
max2010maxim [7]3 years ago
6 0

Answer: has properties similar to other elements in group 18, does not react readily with other elements, is part of the noble gas group

Explanation: I’ve done on edg before

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Which conclusion is supported by the information in the graph?
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Answer:

A. The cost of producing a kilowatt of power with fuel cell will be less than $30 in 2015

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2 years ago
The relative atomic mass of Chlorine is 35.45. Calculate the percentage abundance of the two isotopes of Chlorine, 35Cl and 37Cl
nata0808 [166]

Answer:

35Cl = 75.9 %

37Cl = 24.1 %

Explanation:

Step 1: Data given

The relative atomic mass of Chlorine = 35.45 amu

Mass of the isotopes:

35Cl = 34.96885269 amu

37Cl = 36.96590258 amu

Step 2: Calculate percentage abundance

35.45 = x*34.96885269 + y*36.96590258

x+y = 1  x = 1-y

35.45 = (1-y)*34.96885269 + y*36.96590258

35.45 = 34.96885269 - 34.96885269y +36.96590258y

0.48114731 = 1,99704989‬y

y = 0.241 = 24.1 %

35Cl = 34.96885269 amu = 75.9 %

37Cl = 36.96590258 amu = 24.1 %

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3 years ago
Formation of magnesium chloride​
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A gas tank holds 1125 mL of propane at 3.87 atm. What is the volume of the propane at 777 mm Hg?
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Moseley's changes to the periodic table were based mainly on what part of the scientific process
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