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lisabon 2012 [21]
3 years ago
15

Reactive Nonmetal A. Cadmium B. Titanium C. Oxygen D. Krypton

Chemistry
1 answer:
vova2212 [387]3 years ago
7 0
Im going to say C , sorry if I’m wrong but i think it’s C
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How many atoms are in 6.30 moles of sulfur (S)?
STatiana [176]

Answer: 3.79*10^24 atoms

Explanation:

1 mole = 6.02214076*10^23 atoms

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Which of the following is NOT a characteristic of a strong acid?
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a and c

Explanation:

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Unlike carbohydrates and lipids proteins contain which element?
Harman [31]

Answer:

The answer to your question is: Nitrogen

Explanation:

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Alcohols have more hydrogen bonding .<br>(True or False) ?!​
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3 0
3 years ago
Read 2 more answers
A naturally occurring sample of an element contains only two isotopes. The first isotope has a mass of 68.9255 amu and a natural
Ket [755]

Answer:- The average atomic mass or the atomic mass of the element is 69.7230 amu.

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average atomic mass = mass of First isotope(abundance) + mass of second isotope(abundance)

From given data, the mass of first isotope is 68.9255 amu and mass of second isotope is 70.9247 amu. percent abundance for the first isotope is 60.11%. The sum of percent abundance of all the isotopes of an element is always 100. So, the percent abundance of second isotope = 100 - 60.11 = 39.89%

We convert the percent abundances to the decimals and then plug in the values in the formula to calculate the average atomic mass.

First isotope abundance = 0.6011

second isotope abundance = 0.3989

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average atomic mass = 41.4311 + 28.2919

average atomic mass = 69.7230 amu

So, the average atomic mass or the atomic mass of the element is 69.7230 amu.

3 0
3 years ago
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