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ryzh [129]
3 years ago
5

What is an example of a molecule?

Chemistry
2 answers:
Bess [88]3 years ago
7 0

Answer:  B.) protein..

Explanation:

Kobotan [32]3 years ago
3 0

Answer:

Protein

Explanation:

B i your answer because Protein is an example of a molecule

for human body the other answer choices are not correct.

Hope this helps u.

Pls mark brainlist

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Why do we need to balance chemical equations?
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So we know the number of moles of each compound. If we need to know the concentration we must know the number of moles that the compounds react with...

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Given that you started with 28.5 g of K3PO4, how many grams of KNO3 can be<br> produced?
Irina18 [472]

Mass of KNO₃ : = 40.643 g

<h3>Further explanation</h3>

Given

28.5 g of K₃PO₄

Required

Mass of KNO₃

Solution

Reaction(Balanced equation) :

2K₃PO₄ + 3 Ca(NO₃)₂ = Ca₃(PO₄)₂ + 6 KNO₃

mol K₃PO₄(MW=212,27 g/mol) :

= mass : MW

= 28.5 : 212,27 g/mol

= 0.134

Mol ratio of K₃PO₄ : KNO₃ = 2 : 6, so mol KNO₃ :

= 6/2 x mol K₃PO₄

= 6/2 x 0.134

= 0.402

Mass of KNO₃ :

= mol x MW KNO₃

= 0.402 x 101,1032 g/mol

= 40.643 g

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Answer: amoebae !

Explanation:

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