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Kamila [148]
2 years ago
15

WILL MARK BRAINLY

Chemistry
1 answer:
DENIUS [597]2 years ago
7 0

Answer:

its B i guess

Explanation:

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Answer:

A polar molecule has both a partial positive and a partial negative. Since NaCl (sodium chloride) is made out of Na+ and Cl- ions, the positive and negative parts of the water will pull on these ions individually since positive attracts negative and negative attracts positive. This magnetic force causes the Na+ and the Cl- ions to be pulled apart.

Explanation:

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calculate the volume occupied by 10g of propane gas, under normal conditions of temperature and pressure
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Answer:

5.5 L

Explanation:

First we <u>convert 10 g of propane gas</u> (C₃H₈) to moles, using its <em>molar mass</em>:

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Then we <u>use the PV=nRT formula</u>, where:

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1 atm * V = 0.23 mol * 0.082 atm·L·mol⁻¹·K⁻¹ * 293 K

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2 years ago
Diatoms are made of _____, which is used for industrial processes. calcium chitin silica cellulose
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<span>A characteristic feature of diatom cells is that they are encased within a unique cell wall made of silica (hydrated silicon dioxide) called a frustule.</span>
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Identify the activity that belongs in the field of chemistry.
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D. All of the above. Developing medicine, analyzing compounds and producing new product such as plastic all have to deal with chemistry. 
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Each mole of substance contains 6.02 x <span>1023</span> component parts, in this case water molecules.

If you have 2.3 moles of water you will have 2.3 x 6.02 x <span>1023</span> which is 1.3846 x <span>1024</span> molecules.

Each molecule contains 2 hydrogen atoms, so the total number of hydrogen atoms in 2.3 moles of water will be 2 x 1.3846 x <span>1024</span> = 2.7692 x <span>1024</span>.

Please mark brainliest, thanks :)

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3 years ago
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