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levacccp [35]
3 years ago
7

Which geological feature is caused mainly by glacial erosion? O A. geyser O B. fault line O c. lava flow O D. U-shaped valley​

Chemistry
2 answers:
N76 [4]3 years ago
8 0

Answer:

C

Explanation:

Kamila [148]3 years ago
6 0

Answer:

i think it is C

Explanation: hope this helps :)

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Ethanol (c2h6o) is a common intoxicant and fuel produced from the fermentation of various grains. how many moles of ethanol are
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n = m / M

Where, n is moles of the compound (mol), m is the mass of the compound (g) and M is the molar mass of the compound (g/mol)

Here, the given ethanol mass = 50.0 kg = 50.0 x 10³ g

Molar mass of the ethanol = (12 x 2 + 1x 6 + 1 x 16) g/mol
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Hence, moles in 50.0kg of ethanol = 50.0 x 10³ g / 46 g/mol
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nikitadnepr [17]

It helps to map out how you will navigate through your unit analysis problem before setting it up.  

You are given moles and need grams.  What can be used as a conversion factor from moles to grams?  Molar mass.  We are working with aluminum, so we will need the molar mass of aluminum.  My Periodic Table tells me the molar mass of aluminum is approximately 27 g/mol.  Now we are ready to set up the unit analysis.

0.60molAl(\frac{27gAl}{1molAl} )=16.2 gAl

Moles must go on the bottom so that they cancel.  Notice how our number of significant figures is 2, so the answer must round to 16 g Al.

<h3>Answer:</h3>

16 grams

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