Answer:
25%
Explanation:
Li3N(s) + 2 H2(g) ⇄ LiNH2(s) + 2 LiH(s)
70 g Li3N x 1 mol Li3N/35 g = 2 mol Li3N
2 mol Li3N x 2 mol LiH/1 mol Li3N
= 4 mol LiH x 7.05 g LiH/1 mol LiH = 28.20
percent yield = actual yield/theoretical yield x 100
8 g / 28.20 g ≈ 28%
28% is closest to 25% ap classrom
When 70. G of li3n(s) (molar mass 35 g/mol) reacts with excess h2(g), 8. 0 g of lih(s) is produced. The percent yield is 25%.
What is the percent yield?The actual yield is calculated as the theoretical yield multiplied by 100 to get the percent yield. There are a variety of reasons why a chemical reaction's actual yield could be lower than its theoretical yield, and they will be covered in more detail in later chapters of the course.
Li₃N(s) + 2 H₂(g) ⇄ LiNH₂(s) + 2 LiH(s)
70 g Li₃N x 1 mol Li₃N/35 g = 2 mol Li₃N
2 mol Li₃N x 2 mol LiH/1 mol Li₃N
4 mol LiH x 7.05 g LiH/1 mol LiH = 28.20
Percent yield = actual yield/theoretical yield x 100
8 g / 28.20 g = 28%
28% is closest to 25%
Therefore, the percent yield is 25%.
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Both "the tiger" and "the lamb" convey similar messages, also called iambs. Parallelisms. Refrains. Themes
Both "the tiger" and "the lamb" convey similar messages, also called themes.
What is theme?A theme is known to be any kind of idea or issue that is said to be widen in any given discussion, or others.
Conclusively, In the above, Both "the tiger" and "the lamb" convey similar messages, also called themes as they share similar characteristic in the poem.
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Answer:
Theme
Explanation:
Both convey saddnes and are about animals
In which step did shawna make an error? step 1. she incorrectly applied the pythagorean theorem. step 2. she incorrectly squared the numbers. step 3. she incorrectly isolated a2 step 4. she incorrectly solved for a.
The step in which Shawna make an error is in; Step 2; She incorrectly squared the numbers.
How to solve pythagoras theorem?From the given triangle in the brainly link, we can deduce the correct steps through pythagoras theorem as:
Step 1; a² + 7² = 25²
Step 2; a² + 49 = 625
Step 3; a² = 576
Step 4; Taking square roots of both sides of step 3 gives us;
a = 24
Thus, the step in which Shawna make an error is in Step 2 because She incorrectly squared the numbers.
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Answer:
step 2
Explanation:
i got it right
What is the main idea of this passage? the green revolution solved one problem but created new ones. The green revolution reduced the risk of political conflict. The green revolution has resulted in decreased pollution. The green revolution has contributed to lack of food quality and nutrition
Answer:
its A
Explanation:
Answer:
A on e2022
Explanation:
Please give branliest.
In brian greene's "a physicist explains why parallel universes may exist", what reason does greene give for why he believes parallel universes may exist?
The reason given by greene for why he believes parallel universes may exist is that there are only so many ways matter can arrange itself within that infinite universe.
Why parallel universe?A matter is anything that has weight and occupy space. The whole universe consist of what is know as matter.
However, the theory of multiple universe shows that another universe may exist, which is quite distinct from what is already known to all.
Hence, this theory was supported by Brian Greene on the basis that there are only so many ways matter can arrange itself within that infinite universe.
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The cost of tuition at the college that lacy wants to attend is $12,500 per year. lacy’s family will pay 70% of the tuition cost each year. lacy has two years to save enough money to attend her first year of college. what is the minimum amount that she should save each month in order to have enough money to attend her first year of college?
Answer:
$156.25
Explanation
1 - 0.7 = 0.3$12,500 x 0.3 = $3750$3750/24 months=$156.25What do nuclear fission and fusion have in common?
Answer:
Fusion and fission are similar in that they both release large amounts of energy. Nuclear fusion is a process in which two nuclei join to form a larger nucleus. Nuclear fission is a process in which a nucleus splits into two smaller nuclei
How many cubic blocks of side length inch would it take to fill a cube with a side length of inch?
The number of small cubic blocks that is required to fill the big cubic blocks is 2.
How to calculate the volume of a cube.Mathematically, the volume of a cube is given by the following formula:
Volume of cube = S³
Where:
S is the side length of the cube.
Given the following data:
Side length of small cube = 1/6 inch.Side length of big cube = 2/6 inch.For the small cube:
Volume of cube = (1/6)³ = 0.5 in³
For the big cube:
Volume of cube = (2/6)³ = 1 in³
Therefore, the number of small cubic blocks that is required to fill the big cubic blocks is given by:
Number = 1/0.5
Number = 2 cubic blocks.
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Complete Question:
How many cubic blocks of side length 1/6 inch would it take to fill a cube with a side length of 2/6 inch
The number of cubic blocks of side length 1/6 inch required to fill the cube with side length 2/6 inch is 8
Volume of cubeThe volume of a cube can be obtained by using the following formula
Volume (V) = length (L) cube
V = L³
How to determine the volume of small cube
Length of small cube (L) = 2/6 inch Volume of small cube (V) =?V = L³
V = (1/6)³ in³
How to determine the volume of large cube Length of large cube (L) = 2/6 inch Volume of large cube (V) =?V = L³
V = (2/6)³ in³
How to determine the number of small cube required Volume of large cube = (2/6)³ in³Volume of small cube = (1/6)³ in³Number required =?Number = Volume of large / volume of small
Number = (2/6)³ ÷ (1/6)³
Number = 8
Complete question
How many cubic blocks of side length 1/6 inch would it take to fill a cube with a side length of 2/6 inch
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Why did the united states use export controls with north korea brainly
Answer:
C. to stop the development of nuclear weapons
Explanation:
Just took the test
the millions of bacteria, viruses, and other microorganisms that reside in your stomach and small and large intestines and play an active role in digestion and metabolism is your gut
The bacteria, viruses and other microorganisms that reside in the stomach and small and large intestines play an active role in digestion and metabolism: true.
What is digestion?Digestion refers to a form of catabolic activity that is used by the body of a living organism for the break down of food into smaller sizes that can be absorbed as essential nutrients, while energy is released through the process.
Basically, the millions of bacteria, viruses and other microorganisms that reside in the stomach and small and large intestines of a living organism plays an active role in digestion and metabolism and they are mainly found in the gut microbiome.
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If the radius of a circle is 3. 5 inches, its diameter is inches and its approximate area is square inches
Answer: 7 Inches
Explanation:
Diameter = 7 inches
Area of circle is 38.46 inches²
Step-by-step explanation:
Given :The radius of a circle is 3.5 inches.
We have to find its diameter and area.
Since diameter is twice of radius.
So radius = 3.5 inches
Diameter = 2× 3.5 inches = 7 inches
Area of circle =
Substitute, r = 3.5
Area of circle = (3.5)
Simplify , we have,
Area of circle = 12.25
Using π = 3.14
We have,
Area of circle = 38.465
Thus, Area of circle is 38.46 inches²
Charlie wants to be self-employed. Which career in the marketing, sales, and service career cluster has the highest rate of self-employment? street vendor merchandise displayer demonstrator real estate agent
Answer:
D Real Estate Agent :))))
Answer:
As per charlie to be self-employed the career in the ale and marketing service cluster that has the highest self-employment is that of a real estate agent.
What is self-employment?
Self-employment means to employ oneself that is a person would independent and does not have anyone over sighting their activities.
They are usually to work and for whom they work depends on the service they offer. Thus self-employment is a form of business and is limited to a single entity.
Explanation:
The Other guy is wrong the correct answer would be a real estate agent.
How many different ways can a club choose a committee of 4 from 15 members? 32,760 1,365 24
Answer:
1365 ways
Explanation:
Combinations formula for nchooser is n!/((n-r)!r!)
This becomes 15!/(11!4!)
which is (15*14*13*12)/4*3*2*1 or 15*13*7, or 1365
A key part of agile work at louis vuitton is having employees who are
A key part of agile work at louis vuitton is having employees who are able to think, redisign and are innovative
Agile PracticeAgile practice is a method of product development which is centered on continous improvements of a product in an iterative approach using short periods called sprint cycles to manage timelines
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There are 3 white marbles and 7 blue marbles in a bag
Answer:
what are we supposed to do we I need the whole question to answer your questions
Explanation:
More businesses and organizations, such as amazon, uber, mta, an airline industry, professional sport organizations such as mlb and nba, among others, are employing the following pricing strategy, rather than relying on the fixed pricing strategies
The pricing strategy process that is mediated by most business and the professional sports organizations is a value-based pricing strategy.
What is a pricing strategy?The pricing strategy is given as the process of setting the price at the lowest at good quality service as well. The quality of the service aids the process of customer acquisition and the pricing forms to bind the customer.
The pricing strategy used by the business and the sports organizations is the value-based pricing strategy.
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Two conducting spheres one having twice the diameter of the other
Answer:
energy at each trophic level is lost in the form of heat
Building sheep pens : darsh and darpan are fencing off a large rectangular area to build some temporary holding pens. to prep the males, females, and kids, they are separated into three smaller and equal-size pens partitioned page 30 sample paper 24 cbse maths basic x click here to purchase hard books of cbse online sample papers. 20 sample paper in each subject and rs 500/- for 4 subjects click here download india’s best study app having pdfs of all sample paper and question bank within the large rectangle. (i) if 384 ft of fencing is available and the maximum area is desired, what will be the dimensions of the larger, outer rectangle? (ii) what will be the dimensions of the smaller holding pens?
Since a maximum area is desired, the dimensions of the larger, outer rectangle would be equal to 96 ft and 96 ft.
How to calculate the area of a rectangle?Mathematically, the area of a rectangle is calculated by using this formula:
A = LW
Where:
L is the length.W is the width.A is the area.Since the perimeter shouldn't be larger than the available fencing, we have:
384 = 2L + 2W
2W = 384 - 2L
W = 192 - L
Now, the area becomes:
A = L × (192 - L)
A = 192L - L²
By using completing the square to find the roots, we have:
A = 192L - L²
0 = 192L - L² + 96² - 96²
0 = 96² - (L² - 192L + 96²)
0 = 9216 - (L - 96)²
L = 96 ft.
W = 192 - 96
W = 96 ft.
The dimensions of the smaller holding pens.For the width of the smaller holding pens, we have:
Width = 96/3
Width = 31 ft.
However, the length of the smaller holding pens would remain the same as 96 feet.
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Determine whether the sequence converges or diverges
Answer:
If limn→∞an lim n → ∞ exists and is finite we say that the sequence is convergent.
Explanation:
Scientists studied a deer population for 10 years. They generated the function f(x) = 248(1. 15)x to approximate the number of deer in the population x years after beginning the study. About how many deer are in the population 3 years after beginning the study?
Answer:
377
Explanation:
when you sub 3 for x you get 377
Choose the best translation of the following sentence. as for me, i don't know. por mi parte, no sé. para siempre, no sé. para que sepas, no sé. por ejemplo, no sé.
The best translation of the following sentence "as for me, i don't know" we have that will be "por mi parte, no sé".
This will be the correct translation because when we look at the translation of the other options we have that they correspond to :
"para siempre, no sé" wil correspond to "forever i don't know""para que sepas, no sé" will correspond to "just so you know, i don't know""por ejemplo, no sé" will correspond to "for example, I don't know."In this way, the translation that best suits is "por mi parte, no sé".
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Answer:
A-Por mi parte, no sé. :)
Explanation:
good luck :)
Which math sentence can be used to determine if this triangle is a right triangle?
Answer:
If the square of the length of the longest side of a triangle is equal to the sum of the squares of the other two side
What causes the different seasons on earth brainly
The earth's spin axis is tilted with respect to its orbital plane. This is what causes the seasons. When the earth's axis points towards the sun, it is summer for that hemisphere. When the earth's axis points away, winter can be expected.
How do furnace heating systems typically work? ignition of fuel creates a pressure change inside the furnace, causing a piston to exhaust hot air into the building. a bimetallic strip absorbs thermal energy from the air outside of the building, causing the transfer of thermal energy from fuel to the air inside the building. energy in the fuel’s chemical bonds is converted to thermal energy, which is then transferred to the air inside the building. thermal energy from outside of the building is transferred to the inside of the building using a liquid.
Answer:
C: Energy in the fuel’s chemical bonds is converted to thermal energy, which is then transferred to the air inside the building.
Explanation:
Answer: the answer is C Energy in the fuel’s chemical bonds is converted to thermal energy, which is then transferred to the air inside the building.
Explanation:
All of the following are examples of typical cases brought by the sec against individuals and companies for violating stock market regulations except: a. Insider trading b. Accounting fraud c. Corporate espionage d. Providing misleading information
Answer:
Corporate espionage
Explanation:
sry im late but i think this the answer
What two terms are used to describe the temperature at which solids and liquids
I hope this gives you some sort of assistance.
Reread the textbook just to make it better (if you can quickly look through it)
Anyways goodluck!
When air is blown across the top of an open water bottle, air molecules in the bottle vibrate at a particular frequency and sound is produced. this phenomenon is called
Answer:
When air is blown across the top of an open water bottle, air molecules in the bottle vibrate at a particular frequency and sound is produced in a process called "refraction".
Explanation:
What is the important fraction of paraffin wax and asphalt
An important fraction of paraffin wax and asphalt is called fuel oil.
What is fractional distillation?Fractional distillation can be defined as type of separation technique that is typically used for the separation of a liquid mixture or chemical mixture into fractions with different boiling points by means of distillation, so that one or more fractions of the liquid mixture will vaporize in a fractionating column.
Generally, the fractional distillation of a hydrocarbon such as crude oil produces many chemical compounds at different boiling points. Thus, an important fraction of paraffin wax and asphalt is called fuel oil.
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Based on the allusion to calibans, readers can infer that the speaker believes most british people are prone to violence. Feels that the rioters are different than this shakespearean character. Believes that the current anger in brixton is justified. Feels that the rioters are similar to this shakespearean character
Answer: D
Explanation: feels that the rioters are similar to this Shakespearean character
Based on the allusion to Calibans, readers can infer that the speaker: D. feels that the rioters are similar to this Shakespearean character.
What is an allusion?An allusion is a type of literary device in English literature and it can be defined as a reference in a literary work to a well known text, place, person, event, or thing.
This ultimately implies that, allusion avails an author or a speaker the opportunity to compress (embed) a great deal of meaningful and significant information into a phrase or word.
Based on the allusion to Calibans in "Midsummer" by Derek Walcott, readers can infer that the speaker feels that the rioters are similar to this Shakespearean character.
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In 150 words, summarize what you have learned in this lesson about american society in the first two decades after world war ii.
American society after world war ii was known to have changed a lot as they became major superpowers and became more involved internationally.
How did American society change after WW?As a result of the two World War, the United States was said to have become one of the strongest superpowers.
Hence, they became more open to the rest of the world and they also increased more of their international involvement in matters of peace, security and growth.
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A store sells two different packages of glue sticks
Answer:
To make more money and give different options...
Explanation:
That makes the customer feel like they have options.
Answer:
is there anymore options friend?
Explanation: