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Natalka [10]
2 years ago
11

Which best describes most covalent compounds? A.soft B.brittle C.cold D.warm​

Chemistry
2 answers:
Vera_Pavlovna [14]2 years ago
8 0

Answer:

Option one

Explanation:

Because I just took the test

SIZIF [17.4K]2 years ago
6 0

Answer:soft

Explanation:

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3 years ago
Which of the following will have the slowest rate of diffusion at a given temperature?
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3 years ago
40 g of CaCO3 is how many moles of CaCO3?<br> 10 moles<br> 0.4 moles<br> 40 moles<br> 100 moles
AleksandrR [38]

Answer:

0.4 moles

Explanation:

To convert between moles and grams you need the molar mass of the compound. The molar mass of of CaCO3 is 100.09g/mol. You use that as the unit converter.

40gCaCO3* 1mol CaCO3/100.09gCaCO3 = 0.399640 mol CaCO3

This rounds to 0.4 moles CaCO3

8 0
3 years ago
For an insoluble compound, how might you prevent formation of the precipitate
anastassius [24]
<span>protect it by covering it by lyophilic sol.</span>
8 0
3 years ago
A piece of copper has a volume of 100.0cm^3 (3power) if the mass of the copper is 890g, what is the density of copper??
Bas_tet [7]
Density=mass/volume
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mass=890 g
volume=100 cm³

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answer: the density of the copper is 8.9 g/cm³
6 0
3 years ago
Read 2 more answers
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