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3 years ago

Which of these is an example of a metaphor?

Chemistry

1 answer:

emmainna [20.7K]3 years ago

5 0

Answer:

a i think

Explanation:

because it was the only one that compared something to another

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1. Which of the following statements about carbon oxides is FALSE?

mamaluj [8]

Answer:

what are the following statements?

Explanation:

3 0

3 years ago

If a 0.4856 gram sample of khp is dissolved in sufficient water to prepare 250 ml of solution, and 25 ml of the solution require

dangina [55]

Mass of potassium hydrogen pthalate KHP is 0.4856 g, its molar mass is 204.22 g/mol, number of moles of KHP can be calculated as follows:

$n=\frac{m}{M}$

Here, m is mass and M is molar mass, putting the values,

$n=\frac{0.4856 g}{204.22 g/mol}=0.00237 mol$

This will be number of moles of NaOH at equivalent point.

Detailed calculations:

Molarity is defined as number of moles in 1 L of solution, for 250 mL of solution, molarity will be:

$M=\frac{0.00237 mol}{250 \times 10^{-3}L}=0.009511 M$

For 25 mL, apply dilution law as follows:

$M_{1}V_{1}=M_{2}V_{2}$

Putting the values,

$0.009511\times 250=M_{2}\times 25 mL$

On rearranging,

$M_{2}=\frac{0.009511\times 250}{25}=0.09511 M$

Convert molarity into number of moles,

$n=M\times V=0.09511 mol/L\times 25\times 10^{-3}L=0.00237 mol$

At equivalent point, number of moles of KHP will be equal to NaOH, thus, number of moles of NaOH will be 0.00237 mol.

Calculation for molarity:

Volume of NaOH is 18.75 mL, thus, molarity can be calculated as follows:

$M=\frac{n}{V}$

Putting the values,

$M=\frac{0.00237 mol}{18.75\times 10^{-3}L}=0.1264 M$

Therefore, molarity of NaOH is 0.1264 M

7 0

3 years ago

Question 14

crimeas [40]

Answer:

The answer is A.

Explanation:

Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.

6 0

2 years ago

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Consider the compounds cl2 hcl f2 naf and hf. which compound has a boiling point closest to that of argon?

swat32

The answer is F2, it has the boiling point that is closest to Argon.
Cl2 is a molecule that is larger than F2 so it has larger london dispersion forces than F2 and NaF has high boiling point as it is an ionic compound and HCl and Hf both also have high boiling point. Argon has very low boiling point so F2 has the boiling point that is closest to the Argon.

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3 years ago

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What causes a static charge

Svet_ta [14]

Static electricity is the result of an imbalance between negative and positive charges in an object. ... The rubbing of certain materials against one another can transfer negative charges, or electrons. For example, if you rub your shoe on the carpet, your body collects extra electrons.

6 0

3 years ago

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