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Dmitry [639]
3 years ago
14

What makes up the human body? (A)many different gases (B)carbon dioxide (D)many cells (C) minerals

Chemistry
2 answers:
Novosadov [1.4K]3 years ago
7 0
D many cells tell me if I I’m wrong or right
never [62]3 years ago
4 0

Answer:

<em></em>(B) Carbon Dioxide<em></em>

Explanation:

Roughly 96 percent of the mass of the human body is made up of just four elements: oxygen, carbon, hydrogen and nitrogen, with a lot of that in the form of water. The remaining 4 percent is a sparse sampling of the periodic table of elements

Hope this helps :)

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What is the value of for this aqueous reaction at 298 K? <br><br>A+B↽⇀C+D ΔG°=12.86 kJ/mol<br><br>K=
agasfer [191]

Answer:

The equilbrium constant is 179.6

Explanation:

To solve this question we can use the equation:

ΔG = -RTlnK

<em>Where ΔG is Gibbs free energy = 12.86kJ/mol</em>

<em>R is gas constant = 8.314x10⁻³kJ/molK</em>

<em>T is absolute temperature = 298K</em>

<em>And K is equilibrium constant.</em>

Replacing:

12.86kJ/mol = -8.314x10⁻³kJ/molK*298K lnK

5.19 = lnK

e^5.19 = K

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<h3>The equilbrium constant is 179.6</h3>

8 0
3 years ago
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All the members of a group of elements have the same number of valence electrons and similar chemical properties.

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3 years ago
1. 2Na + 2HCl --&gt; 2NaCl + H2
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The solubility of an ionic compound can be expressed as the number of moles of the compound that will dissolve per liter of solu
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Answer:

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Explanation:

The image for the question is attached

Solution

a) Total 181 ions of Na are dissolved

b)

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