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3 years ago

H E L P M E H P L E A S E

Chemistry

1 answer:

OverLord2011 [107]3 years ago

3 0

Answer:

Its olive oil

Explanation:

0.92 g/mL x 20=18.4

Water and glycerin are too heavy, and math rules out ethanol

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Here is a multiple choice I need help on:

Ivenika [448]

I'm pretty sure it's B because carbon atoms are in all living organisms. They can also be bonded in different varations.

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3 years ago

A student predicts that a solution of ethanol (C2H5OH) and water will have a lower density at room temperature than that of pure

ohaa [14]

Answer:

It would probably be, something that can take up moisture to test it.

Explanation:

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3 years ago

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Is it true or false that Science is a collection of facts that does not evolve. We have gained all the knowledge we can from sci

Masja [62]

false

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3 years ago

What is homogeneous mixture?

Nataly [62]

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3 years ago

You work for a cutlery manufacturer who wants to electrolytically precipitate 0.500 g of silver onto each piece of a batch of 25

ICE Princess25 [194]

Answer:

373.1 mL of AgCN (aq) must be poured into your electrolysis vat to ensure you have sufficient Ag to plate all of the forks.

Explanation:

Mass of silver to be precipitated on ecah spoon = 0.500 g

Number of silver spoons = 250

Total mass of silver = 250 × 0.500 g = 125 g

$Moles (n)=Molarity(M)\times Volume (L)$

Moles of AgCN = n = $\frac{125 g}{134 g/mol}=0.9328 mol$

Volume of AgCN solution =V

Molarity of the AgCN = 2.50 M

$V=\frac{0.9328 mol}{2.50 M}=0.3731 L=373.1 mL$

(1 L = 1000 mL)

373.1 mL of AgCN (aq) must be poured into your electrolysis vat to ensure you have sufficient Ag to plate all of the forks.

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4 years ago