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Verizon [17]
3 years ago
9

Which of the following would be a good use for a nonmetal? handle of frying pan electrical wires structural components in buildi

ngs coinage
Chemistry
2 answers:
lora16 [44]3 years ago
7 0

Handle of frying pan would be a good use for a nonmetal. A nonmetal is neither a good thermal insulator nor a good electrical conductor. Because it is neither, it can be use as a semiconductor. It does not absorb heat that much that is why it is best in insulating.

Rasek [7]3 years ago
6 0

Answer: Option (a) is the correct answer.

Explanation:

Non-metals are the substance which are electron deficient in nature. They are also brittle and bad conductors of heat and electricity.

Whereas electrical wires, structural components in buildings, and coinage requires good conductors of heat and electricity. Therefore, metals being good conductors of heat and electricity are suitable for them.

Hence, we can conclude that handle of frying pan would be a good use for a non-metal.

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Rasheed calculates that his chemical reaction should produce 4 moles of product, but when he does the experiment, he gets only 3
Brut [27]

Answer:

The answer to your question is 75%

Explanation:

Data

Theoretical production = 4 moles

Experimental production = 3 moles

Percent yield = ?

Formula

Percent yield = \frac{Experimental production}{Theoretical production} x 100

Substitution

Percent yield = \frac{3}{4} x 100

Result

Percent yield = 75 %

8 0
3 years ago
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A strong acid, HA, is added to water. Which statement about the solution is true?
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A chemistry graduate student is given 500. mL of a 0.20 M chloroacetic acid (HCH2ClCO2) solution. Chloroacetic acid is a weak ac
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Answer:

12 g of choloracetic acid

Explanation:

The buffer equilibrium is:

HCH₂ClCO₂ ⇄ CH₂ClCO₂⁻ + H⁺

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By Henderson-Hasselbalch equation:

pH = pka + log₁₀ [A⁻] / [HA]

3,01 = 2,89 + log₁₀ [A⁻] / [HA]

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As molar concentration of chloroacetic acid (HA) is 0,20M

[A⁻] = 0,26 mol/L

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0,13 mol × (94,5g / 1mol) = <em>12 g of choloracetic acid</em>

<em></em>

I hope it helps!

3 0
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