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nikitadnepr [17]
3 years ago
15

Write one word for the following short form of an element​

Chemistry
1 answer:
ra1l [238]3 years ago
6 0

Answer:

symbol?

Explanation:

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When would a life scientist study a nonliving thing such as a rock or lake
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How many atoms of N are in 137.0 grams of N2O3?
valina [46]

Answer:

1.085 x 10²⁴

Explanation:

The answer is not in your choices, but it maybe due to a typo but to get the answer to this, you just need to convert the grams to moles, then moles to atoms.

First we get the mass of the molecule for every mole. Get the atomic mass of each element and multiply it by the number of atoms present then get their total.

N₂O₃

Element       number of atoms        Atomic mass       TOTAL

    N                          2                x          14.007            28.014

    O                          3                x          15.999           <u>47.997</u>

                                                                                      76.011 g/mole

So now we know for every 1 mole of N₂O₃ there are 76.011 g of N₂O₃.

Next we need to see how many moles of N₂O₃ are there in 137.0g of N₂O₃.

137.0g\times\dfrac{1mole}{76.011g}=1.802moles

Now we know that we have 1.802moles of N₂O₃.

We use Avogadro's constant to find out how many atoms there are. Avogadro's constant states that for every mole of any substance, there are 6.022140857 × 10²³ atoms.

1.802moles\times\dfrac{6.022140857\times10^{23}atoms}{1 mole}=1.085\times10^{24}atoms

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3 years ago
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Due Tomorrow!<br><br> What is [OH-] of a solution<br> with a pH of -1.0? <br><br> Answer in M
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M IS A LETTER but N is a letter
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A certain organic compound is made up of the amino acids methionine, arginine, and leucine. Which type of organic compound is th
Andrews [41]

<em>Answer:</em>

  • The protein is an organic compound which is made up of the amino acids methionine, arginine, and leucine etc. 

<em>Explanation:</em>

  • Most of the amino acid are linked with others amino acid through peptide linkage to form proteins. The peptide bond is formed between the two amino acid involving carboxylic and amino group.
  • The proteins produce by this way may be simple, conjugated and derived proteins.


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