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Gekata [30.6K]
3 years ago
7

What will be the charge of an atom containing eight protons, nine neutrons, and 10 electrons?

Chemistry
1 answer:
Wittaler [7]3 years ago
6 0
The charge would be -2 because there are 2 more electrons than protons, and electrons have a negative charge.
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valentina_108 [34]

Answer: stay the same because it's a solid.

Explanation:

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3 years ago
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a 360mg sample of sugar (molar mass of 180 g/mol) is dissolved in enough water to produce 200mL of solution. after the sugar is
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360 mg / 1000    => 0.36 g

molar mass => 180 /mol

number of moles:

mass of solute / molar mass

0.36 / 180 => 0.002 moles

Volume solution = 200 mL / 1000 => 0.2 L

M = n / V

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M = 0.01 mol/L

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How many moles in 110g of nahco3?
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Hope this helps you.

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3 years ago
Based on the following molecular weight data of polypropylene, determine the degree of polymerization Molecular Weight Range (g/
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Answer:

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Explanation:

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Weight

8000-16000 0.05 0.03

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32000-40000. 0.25. 0.35

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12000. 600. 240

20000. 3200. 2000

28000. 6720. 5600

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Note before repeat molecular weight m= 3*12.01+6*1.008=

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Why is an environmental contingency plan important
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