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True [87]
3 years ago
6

O nome oficial do composto abaixo é: *

Chemistry
1 answer:
Tresset [83]3 years ago
3 0

2,2,4-trimetilpentano is the answer.

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A sample of Element X is found to contain 67.25% of isotope type 1 (85.91) and 32.75% of isotope type 2 (87.91). Calculate the a
KengaRu [80]

Answer:

The average atomic mass is 86.565

Explanation:

An element's average atomic mass is the sum of the products of the masses of the isotopes of the element and their percentage abundance divided by 100

The average atomic mass of the Element X is given as follows;

Isotope type 1 (85.91) ×

Isotope {}   Abundance (%)        Mass         /100        Portion of average mass

Type 1 {}             67.25       ×       85.91      ÷  100        57.774475

Type 2 {}            32.75       ×       87.91       ÷  100       28.790525

{}                                 Average atomic mass         =  86.565

The average atomic mass = 86.565.

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3 years ago
Which lists the elements in order from least conductive to most conductive?
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Answer:

Answer. Answer: Nitrogen (N), antimony (Sb), bismuth (Bi) is the order from least conductive to most conductive.

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3 years ago
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The answer is C ong
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A ___________________________ is a mixture in which the properties of thesubstances are spread evenly.
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homogenous mixture

Explanation:

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How does yeast cause bread to rise?
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Answer/Explanation:

As bread is baked, the yeasts release carbon dioxide that causes the bread to rise. ... The yeast uses glycolysis and alcohol fermentation to break down sugars in the dough. The yeast releases alcohol and carbon dioxide as a waste product. The carbon dioxide gas causes the bread to rise.

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