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suter [353]
3 years ago
11

Can someone pls help

SAT
1 answer:
irinina [24]3 years ago
6 0

Answer:

D) The term with a coeffiecient is 20w

Explanation:

    5000 is not a variable

    A constant is a number that is not changed by the variable.

    w is a variable, not a coefficient

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What maximum amount of ammonia in kilograms can be synthesized from 5.22 kg of h2 and 31.5 kg of n2?
Fiesta28 [93]

Consider the unbalanced reaction,

H₂ + N₂   ===>   NH₃

Balance it to get

3 H₂ + N₂   ===>   2 NH₃

This tells you that for every 3 moles of H₂ and 1 mole of N₂ among the reactants, 2 moles of NH₃ are produced.

Look up the molar masses of each component element:

• H : 1.008 g/mol     ===>   H₂ : 2.016 g/mol

• N : 14.007 g/mol     ===>   N₂ : 28.014 g/mol

• NH₃ : 17.031 g/mol

Convert the given mass to moles for each reactant:

• H₂ :

(5.22 kg) × (1000 g/kg) × (1/2.016 mol/g) ≈ 2589.29 mol

• N₂ :

(31.5 kg) × (1000 g/kg) × (1/28.014 mol/g) ≈ 1124.44 mol

Now,

(2589.29 mol H₂) : (1124.44 mol N₂) ≈ (2.30 mol H₂) : (1 mol N₂)

so that the amount of N₂ consumed is

(2589.29 mol H₂) × (1 mol N₂) / (3 mol H₂) ≈ 863.095 mol N₂

leaving an excess of about 261.343 mol N₂, and producing

(2589.29 mol H₂) × (2 mol NH₃) / (3 mol H₂) ≈ 1726.19 mol NH₃

Convert this to a mass :

(1726.19 mol) × (17.031 g/mol) × (1/1000 kg/g) ≈ 29.3987 kg

So, up to 29.4 kg of NH₃ can be synthesized.

4 0
3 years ago
This is Math but I still need help!!!!
zaharov [31]
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3 0
2 years ago
According to the university of michigan studies, leaders who are production oriented are described as emphasizing interpersonal
stellarik [79]

The statement which states that <em>according to</em> the University of Michigan studies, leaders who are production oriented are described as emphasizing interpersonal relationships and as taking a personal interest in the needs of their followers is FALSE.

A leader is a person who is in charge of a group of people and is tasked with showing them how things are done and for them to also follow his instructions and trust his leadership.

With this in mind, we can see that the above statement about the research which was made in the University of Michigan is <em>FALSE </em>because production oriented leaders are not described as emphasizing interpersonal relationships.

Therefore, the correct answer is FALSE

Read more about leadership here:

brainly.com/question/2779795

7 0
2 years ago
The professor samples her class by selecting 5 females and 7 males. this type of sampling is called?
Serhud [2]

Answer:

Random selection

Explanation:

4 0
2 years ago
Why did avery use an enzyme to destroy the protein, rna, and dna in each sample?
Elan Coil [88]

Answer:Avery and his team extracted a mixture of various molecules from the heat-killed bacteria and treated this mixture with enzymes that destroyed proteins, lipids, carbohydrates, and some other molecules, including the nucleic acid RNA. Transformation still occurred.

Explanation:

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