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3 years ago

I need help. It’s due tonight. Thanks

Chemistry

2 answers:

VikaD [51]3 years ago

4 0

Answer:

(a) Streptococcus - Pro

(b) Yeast - Euk

(d) Acidophilus -Pro

shepuryov [24]3 years ago

4 0

All of them are prokaryotes except for yeast because it’s cells have membrane bound nuclei

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Which metal would most likely have the highest melting point?

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tungsten

Explanation:

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Does an astronaut have more mass on earth then space? why or why not?

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3 years ago

Dinitrogen pentoxide is used in the preparation of explosives. If 7.93 mol of

Tpy6a [65]

The volume of O₂ produced: 84.6 L

<h3>Further explanation</h3>

Given

7.93 mol of dinitrogen pentoxide

T = 48 + 273 = 321 K

P = 125 kPa = 1,23365 atm

Required

Volume of O₂

Solution

Decomposition reaction of dinitrogen pentoxide

2N₂O₅(g)→4NO₂(g)+O₂ (g)

From the equation, mol ratio N₂O₅ : O₂ = 2 : 1, so mol O₂ :

= 0.5 x mol N₂O₅

= 0.5 x 7.93

= 3.965 moles

The volume of O₂ :

$\tt V=\dfrac{nRT}{P}\\\\V=\dfrac{3.965\times 0.082\times 321}{1.23365}\\\\V=84.6~L$

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3 years ago

How many protons does the neutral atom pictured have?<br> A) 8<br> B) 18<br> C) 2<br> D) 20

Shalnov [3]

Answer:

b 18

Explanation:

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