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2 years ago

15

Consider these diagrams representing particle arrangements. Which correctly matches the diagrams with the three phases of matter

?
A) X, solid; Y, liquid; Z, gas
B) X, solid, Y, gas; Z, liquid
C) X, gas; Y, liquid; Z, solid
D) X, gas; Y, solid; Z, liquid

1 answer:

hram777 [196]2 years ago

4 0

the answer is c) just took the test so these are facts.

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Calculate the atomic mass of chromium it’s composition is 83.79% with a mass of 51.94 amu; 9.50% with a mass of 52.94 Amu; 4.35%

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<span><span>Convert the percentages into decimals (you can do that by dividing the percent by 100), then multiply that by its corresponding mass to find its relative amount/ contribution to the atomic mass of chromium. After doing so, add all of the obtained values together to get the average mass.

</span> 83.79% = .08379
9.50% = .095
4.35% = .0435
2.36% = .0236

Average mass of chromium = 0.8379(51.94) + 0.095( 52.94) + 0.0435(49.95) + 0.0236(53.94)

Answer: 52amu

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