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leonid [27]
3 years ago
10

All of the following are true regarding alcoholic fermentation, except that alcoholic fermentation

Chemistry
1 answer:
guapka [62]3 years ago
4 0
<span>A. produces as much energy as cell respiration.</span>
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Determine % yield if a student obtains 45 g of product in an experiment and the theoretical amount is determined to be 50 g
Katen [24]
Percentage yield=(actual yield/theoretical yield) x 100%
= (45/50) x 100%
= 90%
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4 years ago
Modern atomic theory states that the atom is a diffuse cloud surrounding a small, dense nucleus. Identify which particle is in t
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B) proton
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3 years ago
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Andrei [34K]

Substance A is chlorophyll and Substance B is oxygen

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4 years ago
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What are Valence Electrons?
Gekata [30.6K]
Valence electrons are the electrons that are in an atom's outermost layer. 
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5 0
3 years ago
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Each student in a class placed a 2.00 g sample of a mixture of Cu and Al in a beaker and placed the beaker in a fume hood. The s
Aleks [24]

Answer:

Percentage mass of copper in the sample = 32%

Explanation:

Equation of the reaction producing Cu(NO₃) is given below:

Cu(s)+ 4HNO₃(aq) ---> Cu(NO₃)(aq) + 2NO₂(g) + 2H₂O(l)

From the equation of reaction, 1 mole of Cu(NO₃) is produced from 1 mole of copper. Therefore, 0.010 moles of Cu(NO₃) will be produced from 0.010 mole of copper.

Molar mass of copper = 64 g/mol

mass of copper = number of moles * molar mass

mass of copper = 0.01 mol * 64 g/mol = 0.64 g

Percentage by mass of copper in the 2.00 g sample = (0.64/2.00) * 100%

Percentage mass of copper in the sample = 32%

3 0
3 years ago
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