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Dvinal [7]
3 years ago
13

Covalent bonds are in the air you breathe and the water you drink. How are covalent bonds formed ? A) between atoms with more el

ectrons than protons B) between atoms that share electrons C) between atoms with more neutrons than prontons
Chemistry
1 answer:
serious [3.7K]3 years ago
3 0
<span>A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding. Therefore, option B is the correct answer.</span>
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Fe-54 = 5.845%
FrozenT [24]

Answer:

\boxed {\boxed {\sf 55.76756  \ amu}}

Explanation:

The average atomic mass is the sum of the product of the given masses and their abundances. We have to complete two steps for each isotope, then add all the products together.

<u>Fe-54</u>

Convert the percent abundance to a decimal by dividing by 100.

  • 5.845/100= 0.05845

Multiply the abundance as a decimal by the mass number. This is the number after the element in the isotope symbol (54 amu).

  • 0.005845 * 54=3.1563 amu

<u>Fe-56</u>

Convert the percent to a decimal.

  • 91.754/100=0.91754

Multiply the decimal by the mass number (56 amu).

  • 0.91754 * 56= 51.38224 amu

<u>Fe-58</u>

Convert the percent to a decimal.

  • 2.119/100=0.02119

Multiply by the mass number (58 amu).

  • 0.02119 * 58 = 1.22902 amu

<u>Average Atomic Mass</u>

Add all the products together to find the average atomic mass.

  • 3.1563 amu + 51.38224 amu + 1.22902 amu =55.76756 amu

The average atomic mass given the percent abundance is <u>55.7656 atomic mass units.</u>

8 0
3 years ago
How many valence electrons does this atom have ? 1s^2 2s^2 2p^6 3s^2
tangare [24]

Answer

there is 2 electrons on that atoms

Explanation:

5 0
3 years ago
Which two properties of an object are directly related to its thermal energy?
Tanzania [10]

Answer: mass and temperature

5 0
3 years ago
Read 2 more answers
The major group of organic chemicals that has double the number of hydrogen atoms as carbon or oxygen atoms, signified by the ch
gulaghasi [49]

The major group of organic chemicals that has double the number of hydrogen atoms as carbon or oxygen atoms [chemical formula (ch2o)n] is carbohydrates.

<h3>What are carbohydrates?</h3>

Carbohydrates are biological macromolecules that function as macronutrients by providing energy, which are composed of simple carbon-based molecules linked by glycosidic bonds.

In conclusion, the major group of organic chemicals that has double the number of hydrogen atoms as carbon or oxygen atoms [chemical formula (ch2o)n] is carbohydrates.

Learn more about carbohydrates here:

brainly.com/question/336775

#SPJ1

5 0
1 year ago
a _ is a possible explanation for a problem using what you know and what you observe a-conclusion b-thesis c-theory d- hypothesi
Andrej [43]
I'm pretty sure its A 
7 0
3 years ago
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