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Crank
3 years ago
8

What causes acid rain is it hydroelectric energy is it fossil fuels or is it geothermal energy

Chemistry
2 answers:
lukranit [14]3 years ago
8 0
Fossil fuels
When sulfur dioxide and nitrogen oxide they burn fossil fuels<span>, such as coal, to produce electricity.The </span>exhaust<span> from cars, trucks, and buses releases nitrogen oxides and sulfur dioxide into the air and these pollutants cause acid rain.</span>
Vladimir79 [104]3 years ago
5 0
Hydroelectric energy is best answer
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An aqueous solution of calcium hydroxide is standardized by titration with a 0.120 M solution of hydrobromic acid. If 16.5 mL of
Artist 52 [7]

<u>Answer:</u> The molarity of calcium hydroxide in the solution is 0.1 M

<u>Explanation:</u>

To calculate the concentration of base, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HBr

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is Ca(OH)_2

We are given:

n_1=1\\M_1=0.120M\\V_1=27.5mL\\n_2=2\\M_2=?M\\V_2=16.5mL

Putting values in above equation, we get:

1\times 0.120\times 27.5=2\times M_2\times 16.5\\\\M_2=0.1M

Hence, the molarity of Ca(OH)_2 in the solution is 0.1 M.

7 0
3 years ago
Which of these is an example of a physical change? Question options: melting a substance breaking chemical bonds forming chemica
kherson [118]
Your answer is Breaking chemical bonds. Hope this helps
4 0
3 years ago
Read 2 more answers
How many protons does silicon have? <br> a. 2 <br> b. 14 <br> c. 28 <br> d. 28.08
EleoNora [17]
The answers is, B. 14
5 0
2 years ago
If 0.959J of heat is added to 0.88g of water, how much will its temperature increase
ss7ja [257]

Answer:

0.260 Celsius

Explanation:

q =c x m x (T2-T1)

c - specific heat of water 4.186 J/g.C

T2-T1 = q /(c x m) = 0.959 /(4.186 x 0.88) = 0.959/3.68 =0.260 C

7 0
2 years ago
One of the students in lab decided to use two fractionating columns (one on top of the other) instead of just one. How would thi
Andrews [41]

Answer:

See detailed explanation.

Explanation:

Hello there!

In this case, according to the given description, it turns out possible for us to infer that the second fractionating column on top of the first one will favor the light product, in this case hexane as it has the lowest boiling point and molar mass; in such a way, we can tell the following:

a) The separation between hexane and heptane will be increased as a purer hexane-rich product will be obtained on the top of the second column.

b) Will be increased as well, because the second column will remove more heptane.

c) Also, more pure heptane will be obtained on the bottom of the two columns, yet the most favored yield will be that of hexane.

All of the aforementioned is possible due to the fact that the second column will remove the amount of heptane that could not be removed on the top of the first column by taking the vapor-liquid equilibrium further from the first column's maximum separation, which is known as distillation sequences.

Regards!

8 0
2 years ago
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