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Eduardwww [97]
3 years ago
9

14. What is a major disadvantage of using solar power?

Chemistry
2 answers:
sleet_krkn [62]3 years ago
8 0
I believe that number 27 is A
oee [108]3 years ago
6 0

14. D because all the other answers dont make cents

11. B Becuz the powerplants need to have waste

27. A Cuz reasons

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Convert CH4 to C2H6?<br> Dehydration of alcohol by conc. H2SO4.....?
umka21 [38]

Answer:

1.

CH4 + Cl2 → CH3-Cl + HCl

2CH3-Cl +2Na → C2H6

2.

CH3-CH2-OH ---(conc. H2SO4)----> CH2=CH2 + H2O

Explanation:

1. Conversion of methane to ethane

Step 1 - Treat methane with chlorine gas presence of ultraviolet light

CH4 + Cl2 → CH3-Cl + HCl

Step 2 - Treat chloromethane formed in step 1 with the sodium metal and dry ether  (Wrutz synthesis)

2CH3-Cl +2Na → C2H6

2. On treating ethanol with excess of concentrated sulfuric acid, it converts into ethene

CH3-CH2-OH ---(conc. H2SO4)----> CH2=CH2 + H2O

6 0
3 years ago
HELP ME! If I get an F on my test I’m getting kicked out:(
satela [25.4K]

Answer:

It is just slightly less abundant than its alkali cousin, sodium. Potassium is less dense than water, so it can float on water. However, chemically, potassium reacts with water violently. It will give off hydrogen and eventually catch fire.

3 0
3 years ago
If a car travels 800m in 30 seconds how fast is it going? HELP MEEE!!
Paul [167]

Answer:

<h2>26.67 m/s</h2>

Explanation:

The speed of the car can be found by using the formula

v =  \frac{d}{t}  \\

d is the distance

t is the time taken

From the question we have

v =  \frac{800}{30}  =  \frac{80}{3}  \\  = 26.66666...

We have the final answer as

<h3>26.67 m/s</h3>

Hope this helps you

7 0
3 years ago
How many moles of water will be produced from the combustion of 0.27 moles of CH3OH?
Valentin [98]

Answer:

0.54 mole of H2O.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2CH3OH + 3O2 —> 2CO2 + 4H2O

From the balanced equation above,

2 moles of CH3OH reacted to produce 4 moles of water.

Finally, we shall determine the number of mole of water (H2O) produced by the reaction of 0.27 moles of CH3OH. This can be obtained as follow:

From the balanced equation above,

2 moles of CH3OH reacted to produce 4 moles of water.

Therefore, 0.27 moles of CH3OH will react to produce = (0.27 × 4)/2 = 0.54 mole of H2O.

Thus, 0.54 mole of H2O is produced from the reaction.

5 0
2 years ago
1.12 x 10^22 atoms to grams
Pie

Answer:

3.40

⋅

10

22

atoms

H

e

Explanation:

6 0
3 years ago
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