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motikmotik
3 years ago
5

What are geometric isomers?

Chemistry
1 answer:
irina [24]3 years ago
3 0
<span>C. compounds that have the same atoms arranged in the same order, but with different three-dimensional orientations.</span>
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Which of these boxes will not accelerate?
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B as all the forces cancel out

Explanation:

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2 years ago
From the list of the instructions and tips below, select the statement that would not lead to a successful recrystallization.
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8 0
2 years ago
A hydrocarbon contains 85.7% carbon and the remainder
Viefleur [7K]

Answer:

CH₂ ;  67.1 %

Explanation:

To determine the empirical formula we need to find what the mole ratio is in whole numbers of the atoms in the compound. To do that we will first need the atomic weights of C and H and then perform our calculation

Assume 100 grams of the compound.

# mol C = 85.7 g / 12.01 g/mol = 7.14 mol

# mol H = 14.3 g /  1.008 g/mol = 14.19 mol

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So the empirical formula is CH₂

For the second part we will need to first calculate the theoretical yield for the 12.03 g NaBH₄  reacted and then calculate the percent yield given the 0.295 g B₂H₆ produced.

We need to calculate the moles of  NaBH₄ ( M.W = 37.83 g/mol )

1.203 g  NaBH₄ / 37.83 g/mol =  0.0318 mol

Theoretical yield from balanced chemical equation:

0.0318 mol NaBH₄ x 1 mol B₂H₆ / mol NaBH₄ = 0.0159 mol B₂H₆

Theoretical mass yield B₂H₆ = 0.0159 mol x 27.66 g/ mol =  0.440 g

% yield = 0.295 g/ 0.440 g x 100 = 67.1 %

6 0
3 years ago
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A neutral Atom of silicon-30 contains 14 protons . How many electrons does it have ?
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14 right??? i hope this helps

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3 years ago
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