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Elodia [21]
3 years ago
15

The PV cell is made of two thin layers of___?

Biology
1 answer:
Archy [21]3 years ago
5 0

Photovoltaic cells.

While semiconducting material such as silicon, the other a metal such as aluminum or silver.

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Answer:

Water evaporates and ends up in clouds high up in the atmosphere. Since it is colder in the upper atmosphere, the clouds condense.

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1) How many grams of CO are needed with an excess of Fe2O3 to produce 35.0 g Fe?
satela [25.4K]
1. Moles Fe = 209.7 g/ 55.847 g/mol= 3.75 

The ratio between Fe and CO is 2 : 3 

Moles CO = 3.75 x 3 /2 = 5.63 

<span>Mass CO = 5.63 mol x 28.01 g/mol= 157.7 g

2. </span><span />2Na + 2H2O --> 2NaOH + H2<span>atomic weight of sodium is 23             48.7/23 = 2.12 moles  of sodium 
2.12/2 x 24 = 25.44dm^3 hydrogen = 1.06 moles

so multiply it by Avogadro's number1.06 X 6.02x10^23 = 1.204x10^24 molecules of hydrogen
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3 years ago
How can we reduce the Disadvantages of Human-made Materials?​
Ostrovityanka [42]
A way we can reduce disadvantages of human made materials is simply by finding new uses for them such as when plastic is molded and used for a container of a liquid.
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3 years ago
Viruses acquire an envelope during the maturation step of a cell's viral infection?
Flura [38]
It depends on which virus you are referring to specifically. Viruses come in many shapes and types; their variations are tremendous.

For HIV and Influenza, viruses acquire their envelops after maturation, during the budding off or detachment stage from the host cell.

Hope this helps! :)
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