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Alexeev081 [22]
2 years ago
10

Electricity generated from any source comes with its own advantages and disadvantages. So, no source of energy for generating el

ectricity is perfect. However, imagine that there is an energy source that perfectly meets the needs of society. Describe this ideal source of energy. Include relevant factors such as cost, supply, safety, reliability, and environmental impact.
Chemistry
1 answer:
irakobra [83]2 years ago
6 0

Answer:

Wind energy

An ideal source of energy needs to be reliable, cost effective, safe and must lead to almost zero adverse environmental impact.

Wind energy is energy obtained from air moving at high velocity. This energy is harvested using windmills which convert mechanical energy to electrical energy.

Wind is inexpensive because it occurs naturally. However, a large expanse of land is required in order to mount sufficient number of windmills that will generate enough electrical energy for practical purposes.

This method of electricity generation is safe and does not lead to any environmental hazard unlike the burning of fossil fuels, use of nuclear energy or loss of habitat due to hydroelectric power generation.

Explanation:

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If 42.9 mL of rubbing alcohol is
lisov135 [29]

Answer:

19.8 %

Explanation:

V% = ( V of solute \ 100 ml  of solution ) ×100%  =

   the volume of the solute in 100ml solition = 20 ml

  42.9 ml of solute ----------215 ml solution

     ×                     -----------  100 ml solution

42.6 ×   100 ml  ÷ 215 ml

= 19.8 ml of solute

the V% =   (19.8 ÷ 100)  ×100% = 19.8%

3 0
3 years ago
How many moles of CaO are needed to react with excess water to produce 370g of calcium hydroxide?
never [62]

Answer:

5 moles

Explanation:

CaO+H20--> Ca(OH)2

mass 280 90 370g

RFM 56 18 74

moles 5 5 5

4 0
3 years ago
Porfavor necesito ayuda para solucionar esta tabla
Ivahew [28]

Explanation:

jdjddjdjei in a bit of a break and then you in Delhi for speed and your voice is so we are mad e

7 0
3 years ago
PLEASE HELP ILL GIVE BRAINIST!!!! Explain how atoms become molecules and how molecules become substances. Make it at least 3 sen
GarryVolchara [31]
When two or more atoms chemically bond together, they form a molecule (O3). When atoms of at least two different elements come together to form chemical bonds, these molecules can be called compounds (NaCl). A pure substance consists of a single element or compound. For example, Iron is formed only of Iron (Fe) atoms; table salt is formed only by sodium chloride (NaCl) molecules.
5 0
3 years ago
Read 2 more answers
A quantity of 7.480 g of an organic compound is dissolved in water to make 300.0 mL of solution. The solution has an osmotic pre
Serga [27]

Answer:

C5H6N2O3

Explanation:

First the empirical formulas

C= 41.8÷12= 2.48

H= 4.7÷1= 4.7

O= 37.3÷ 16= 2.33

N= 16.3÷14 = 1.16

Divide by the smallest

C= 3.48/1.16=3

H= 4.7/1.16=4.1

O= 2.33/1.16=2

N= 1.16/1.16=1

Therefore empirical formula = C3H4NO2

To calculate molecular formula for osmotic pressure,

π= cRT

Or

π=cgRT/M where cg is in g/liter & T is temperature in Kelvin. Thus

π= (7.480*0.0821*300)/ M

M= 184.23/1.43

M= 128.83

To find molecular Formula

Molecular Mass= (empirical mass)n

128.83= (C3H4NO2)n

128.83= 86n

n= 1.5

Therefore the molecular formula

(C3H4NO2)1.5

= C4.5H6N1.5O3

Approximately

C5H6N2O3

7 0
3 years ago
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