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3 years ago

Is -2 degrees Fahrenheit warmer or is -17 degrees fahrenheit?

Chemistry

1 answer:

guapka [62]3 years ago

8 0

-2 degrees would be warmer than -17 because the higher the number gets in the negatives the lower the temperature

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There are 7 named classes of hazardous materials.<br> O True<br> O False

Anika [276]

False

there is actually 9

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3 years ago

What piece of equipment is used to measure: length

avanturin [10]

Answer:

Ruler

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3 years ago

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An allele whose trait shows up in an organism when the allele is present is a

dmitriy555 [2]

Dominant allele

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An allele whose trait does not show up in an organism when present is called a recessive allele.

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3 years ago

How many electrons can be held in the second orbital

mariarad [96]

Second orbital can hold 8 electrons

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3 years ago

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The table shows a chemical equation and the dimensional analysis used by a student to calculate the number of moles of Ba3N2 req

UNO [17]

This problem is providing the chemical reaction whereby barium nitride reacts with water to produce barium hydroxide and ammonia, so the number of moles of barium nitride are required in order to produce 8.3 moles of ammonia. It asks for us to evaluate the student's setup, so we conclude the answer is C. "1 mol of NH3 should be replaced with 2 mol of NH3", according to:

<h3>Mole ratios:</h3>

In chemistry, stoichiometric calculations are used to figure out the moles or mass of a substance, given information about another one in the reaction. In this case, for the given chemical equation:

$Ba_3N_2 + 6H_2O \rightarrow 3Ba(OH)_2 + 2NH_3$

We evidence a 1:2 mole ratio of barium nitride to ammonia, for that reason, the student's setup:

$8.3 mol NH_3 * \frac{1 mol Ba_3N_2 }{1 mol NH_3}$

Is incorrect, because the ammonia must be accompanied by a 2 rather than the 1 it is given there:

$8.3 mol NH_3 * \frac{1 mol Ba_3N_2 }{2mol NH_3}$

Thereby, the correct answer is C. "1 mol of NH3 should be replaced with 2 mol of NH3"

Learn more about mole ratios: brainly.com/question/15288923

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2 years ago