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pantera1 [17]
3 years ago
12

Choose all that apply: Living organisms use atoms from sugar molecules combined with other elements to form: Question 9 options:

Lipids Metals Nonmetal atoms Nucleic Acids
Chemistry
1 answer:
Lina20 [59]3 years ago
8 0
Living organisms use atoms from sugar molecules combined with other elements to form lipids and nucleic acids. Lipids are hydrophobic organic compounds composed of carbon and a high ratio of hydrogen to oxygen. Nucleic acids are an acidic polymer of nucleotides found or produced in the cell nucleus. 
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1 How many moles of solute are in:
Sonbull [250]

Moles of solute for both a and b are the same = 1 mol

<h3>Further explanation</h3>

Given

a 500 cm³ of solution, of concentration 2 mol/dm³

b 2 litres of solution, of concentration 0.5 mol/dm³

Required

moles of solute

Solution

Molarity shows the number of moles of solute in every 1 liter of solution or mmol in each ml of solution

Can be formulated :

\large \boxed {\bold {M ~ = ~ \dfrac {n} {V}}}

a.

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n = 2 mol/L x 0.5 L

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b.  

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