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chubhunter [2.5K]
3 years ago
9

The blue color in some fireworks occurs when copper chloride is heated to approximately

Chemistry
1 answer:
Sedaia [141]3 years ago
7 0
The correct answer should be 1500 K. I hope I helped.
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The Society of Automotive Engineers has established an accepted numerical scale to measure the viscosity of motor oil. For examp
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Answer:

Most viscous to least viscous: (c)> (b)> (a)

Explanation:

For hydrocarbons, viscosity increases with increasing molar mass. Because increasing molar mass signifies increase in number of electrons in molecules.

We know that in non-polar hydrocarbons, only van der waal intermolecular force exists. Van der waal force is proportional to number of electrons in a molecule.

Therefore with increasing molar mass, van der waal force increases. hence molecules gets more tightly bind with each other resulting increase in viscosity.

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Therefore viscosity order : (c)> (b)> (a)

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