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3 years ago

9

The effects of acid rain include:

1 answer:

posledela3 years ago

7 0

<span>The effects of acid rain include:

d. All the above
</span>

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How does the understanding of the structure of the atom help you see both unity and diversity in forms of matter?

gtnhenbr [62]

<span>How does understanding the structure of the atom help you see both unity and diversity in forms of matter?</span><span>

Understanding the structure of the atom helps to understand unity in matter because all matter is made up of those very similar atoms. Understanding the structure of the atom helps to understand diversity in matter because matter can be different (solid, liquid, gas, hard, soft, etc) and knowing the structure of the atom can explain these differences.

Hope This Helps! :3</span>

5 0

4 years ago

Read 2 more answers

What is the maximum number of electrons an expanded octet can hold?

kondaur [170]

First shell hold 2. second shell can hold up to 8. so it should be 8.

7 0

3 years ago

How many centimeters are there in 4.84 x 10 kilometers

dezoksy [38]

Answer:

4,840,000 centimeters

Explanation:

4 0

3 years ago

In a Dam, If we doubled the depth of the dam the hydrostatic force will be ?

AnnZ [28]

Answer: Option (A) is the correct answer.

Explanation:

Force acting on a dam is as follows.

F = $\frac{1}{2}\rho g\omega H^{2}$ .......... (1)

Now, when we double the depth then it means H is increasing 2 times and then the above relation will be as follows.

F' = $\frac{1}{2}\rho g\omega (2)^{2}$

F' = $\frac{1}{2}\rho g\omega 4$ ........... (2)

Now, dividing equation (1) by equation (2) as follows.

$\frac{F}{F'}$ = $\frac{\frac{1}{2}\rho g\omega H^{2}}{\frac{1}{2}\rho g\omega 4}$

Cancelling the common terms we get the following.

$\frac{F}{F'}$ = $\frac{1}{4}$

4F = F'

Thus, we can conclude that if doubled the depth of the dam the hydrostatic force will be 4F.

4 0

3 years ago

Hemoglobin, an iron-containing oxygen-transport protein, is 0.349% Fe by mass.

nirvana33 [79]

Answer : The molar mass of hemoglobin is, $6.40\times 10^4g/mol$

Explanation : Given,

Molar mass of iron = 55.85 g/mol

0.349 % Fe by mass that means 0.349 grams of Fe present in 100 grams of hemoglobin.

or,

$\text{Percent of Fe}=\frac{4\times \text{Molar mass of Fe}}{\text{molar mass of hemoglobin}}\times 100$

Now put all the given values in this formula, we get:

$0.349=\frac{4\times 55.85g/mol}{\text{molar mass of hemoglobin}}\times 100$

$\text{molar mass of hemoglobin}=64011.46g/mol=6.40\times 10^4g/mol$

Thus, the molar mass of hemoglobin is, $6.40\times 10^4g/mol$

3 0

4 years ago