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3 years ago

What common carboxylic acid does vinegar contain?

Chemistry

2 answers:

vovikov84 [41]3 years ago

7 0

Answer: The correct answer is acetic acid.

Explanation:

Vinegar is an organic compound which is used in the kitchen in food items. The chemical formula for this compound is $CH_3COOH$

It is the common name for a compound named as acetic acid.

For the given options:

Citric acid: The chemical formula for this acid is $C_6H_8O_7$

Hydrochloric acid: The chemical formula for this acid is HCl.

Nitric acid: The chemical formula for this acid is $HNO_3$

Hence, the correct answer is acetic acid.

densk [106]3 years ago

4 0

It should be acetic acid

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A gas is initially confined to a 1.00 L vessel at 3.00 atm of pressure. A valve connecting the 1.00 L vessel to a 3.00 L vessel

Brilliant_brown [7]

Answer:

c. 0.750 atm .

Explanation:

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In this case, since the two vessels have different volume, we can see that the gas is initially at 3.00 atm into the 1.00-L vessel, but next, it is allowed to move towards the 3.00-L vessel, meaning that the final volume wherein the gas is located, is 4.00 L; therefore, we use the Boyle's law to compute the final pressure:

$P_2V_2=P_1V_1\\\\P_2=\frac{P_1V_1}{V_2} \\\\P_2=\frac{3.00atm*1.00L}{4.00L}\\\\P_2=0.750atm$

Therefore the answer is c. 0.750 atm .

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3 years ago

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3 years ago

Give explanations for the large drops in melting point from C to Si and from Ge to Sn.

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As we move down the group, the metallic bond becomes more stable and the formation of forming covalent bond decreases down the group due to the large size of elements.

Covalent and metallic bonding leads to higher melting points. Due to a decrease in attractive forces from carbon to lead there is a drop in melting point.

Carbon forms large covalent molecules than silicon and hence has a higher melting point than silicon.

Similarly, Ge also forms a large number of covalent bonds and has a smaller size as compared to that of Sn. Hence melting point decreases from Ge to Sn.

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To learn more about the covalent bond, visit: brainly.com/question/10777799

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1 year ago

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