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2 years ago

PLEASE HELP ME !!!!!!!

Chemistry

1 answer:

love history [14]2 years ago

5 0

Answer:

it would be 5,045

Explanation:

because it is closer to 5,000. pls correct me if wrong

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marin [14]

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2 years ago

4. Which of the following statements accurately compares the wavelengths of the waves shown below?

wlad13 [49]

Answer:

B. wave 1 has a larger wavelength than wave 2

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2 years ago

Which representative element has the largest atomic radius ?

Vikki [24]

Answer:

francium

Explanation:

the atomic radius increases from top to bottom in a group, and decreases from left to right across a period.

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3 years ago

Find the grams in 1.26*10^-4 mol of HC2H3O2

Oksana_A [137]

Answer:

0.00757 grams

Explanation:

Find the molar mass of the compound: which is 60.05.

The molar mass is basically just the sum of all the atomic masses of each of the elements.

Then multiply the molar mass by the number of moles in the compound, which is 1.26 x 10^-4 moles.

Your answer should be 0.00757 grams.

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2 years ago

Liquid A is known to have a lower surface tension and lower viscosity than Liquid B. Use these facts to predict the result of be

Korvikt [17]

Answer: Option (B) is the correct answer.

Explanation:

Surface tension is defined as the attractive forces experienced by the surface molecules of a liquid by the molecules present beneath the surface layer of the liquid.

And, viscosity is defined as the ability of a liquid to resist its flow. When a substance has high viscosity then it is known as a viscous substance.

Since, it is given that viscosity of liquid B is more than liquid A. Therefore, liquid B has more resistive force on its surface as compared to liquid A. As a result, time taken by liquid B is more than time taken by liquid A.

Also, Surface tension = $\frac{Force}{Length}$

Surface tension of liquid B is more than liquid A. Therefore, $F_{B} > F_{A}$ .

Thus, we can conclude that tA will be less than tB.

8 0

3 years ago