Could anyone help? will vote brainliest

Chemistry

1 answer:

Free_Kalibri [48]3 years ago

8 0

Isotope is two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei.

Carbon would have 6 protons, 6 Neutrons and 6 electrons.

Sulfur would have 16 protons, 16 neutrons and 16 electrons.

I hope that was a little helpful!

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Why must chemical equations be balanced?

Elina [12.6K]

Answer:

to validate the law of conservation of mass as total no. of reactants must be equal to the total no. of products

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3 years ago

Iron has many isotopes but only 4 are found in significant amounts in naturally found mixtures. The amounts by mass percent are:

AnnZ [28]

Answer:

The average mass of iron to be is 54.76 amu.

Explanation:

Formula used to calculate average atomic mass follows:

$\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i$

Mass of Fe-54 isotope = 53.9396 amu

Percentage abundance of Fe-54 = 5.845%

Fractional abundance of Fe-54 = 0.05845

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Fractional abundance of Fe-57 = 0.002119

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Fractional abundance of Fe-58 = 0.00282

Average atomic mass of iron :

$=53.9396 amu\times 0.05845+55.9349 amu\times 0.91754 +56.9354 amu\times 0.002119 + 57.9333 amu\times 0.00282=54.76 amu$

The average mass of iron to be is 54.76 amu.

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3 years ago

Describe a light year.<br> Help ASAP please, doing an exam..

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Answer:

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Hope it helps