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3 years ago

Balance the reaction and determine which of the following coefficients

Chemistry

1 answer:

tatiyna3 years ago

6 0

Answer:

B. The correct ratio is 3:1:1:3

Explanation:

According to this question, the following chemical equation was given:

CH3COOH + Al(OH)3 → Al(CH3COO)3 + H2O

This equation is obviously not balanced because the number of atoms of each element on both sides of the equation is not equal or the same. To balance the equation, we make use of coefficients as follows:

3CH3COOH + Al(OH)3 → Al(CH3COO)3 + 3H2O

- There are now 6 moles of C on each side

- There are now 15 moles of H on each side

- There are now 9 moles of O on each side

- There is now 1 mole of Al on each side

The correct ratio of each compound is in the order 3:1:1:3

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The Society of Automotive Engineers has established an accepted numerical scale to measure the viscosity of motor oil. For examp

natta225 [31]

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.

Here molar mass order : $(c)> (b)> (a)$

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

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