The enthalpy change involved in the dissolution of 17. 5 grams of NH₄NO₃ in water is +5.47 KJ
Data obtained from the question 1 mole of NH₄NO₃ has an enthalpy change of +25 KJ 17.5 g of NH₄NO₃ =? How to determine the enthalpy change for 17. 5 g of NH₄NO₃1 mole of NH₄NO₃ = 14 + (1×4) + 14 + (3×16) = 80 g
Thus, we can say that:
80 g of NH₄NO₃ has an enthalpy change of +25 KJ
Therefore,
17.5 g of NH₄NO₃ will have an enthalpy change of = (17.5 × 25) / 80 = +5.47 KJ
Thus, the enthalpy change for 17.5 g of NH₄NO₃ is +5.47 KJ
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What right did women in the united states win by 1930? the right to work the right to vote the right to join the military the right to run for office
Answer: B! The right to vote!
Explanation:
just took test 100%
By 1930, women in the United States had won the right to work, which meant they were legally permitted to work outside the home.
What is right to work?The term "right-to-work laws" refers to state laws in the United States that prohibit union security agreements between employers and labor unions that require employees.
By 1930, women in the United States had won the right to work, which meant they were legally permitted to work outside the home.
The right to vote, however, had already been secured with the ratification of the 19th Amendment to the United States Constitution in 1920.
Women were also allowed to join the military in 1948 and to run for office in 1916, though it took many more years for women to break down gender barriers in politics and achieve high-level political leadership roles.
Thus, the answer is right to work.
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Can you electroplate a wooden article with a metal? why or why not?
Answer:
No
Explanation:
you cant this is because wooden materials dont have dipoles in their domains
The electrical conductivity of an aqueous solution depends on the concentration
The concentration, mobility, and valence state of the ionized species in a solution, as well as the temperature at which the measurement is done, all have a role. The conductivity of water increases with the concentration of ions in it.
A particular computer on your network is a member of several gpos. gpo-a has precedence set to 1. gpo-b has precedence set to 2, and gpo-c has precedence set to 3. according to the given levels of precedence, what will be the resultant set of policy (rsop) for this machine?
In this scenario, the resultant set of policy (RSOP) for this computer system would be that: GPO-A will take precedence and overwrite any conflicting settings.
What is GPO?GPO is an acronym for Group Policy Object and it can be defined as a set of Group Policy settings of the Microsoft Windows NT operating systems that defines what a computer system should look like. Also, GPO controls user and computer account features and working environment in general.
Based on the level precedence that was set for this computer on your network, its resultant set of policy (RSOP) would be that GPO-A will take precedence and overwrite any conflicting settings from GPO-B and GPO-C.
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Introduction to the practice of statistics 9th edition answers
Answer:
Step 1 of 2
Cases are defined as objects in a set of data. Each case will have a characteristic called a variable and these can differ from case to case.
Step 2 of 2
The given spreadsheet in figure 1.1 explains different types of food menus and the items that are served under each type. In addition, the items are also displayed with regular prices and discounted prices. Thus, Smokey Grill Ribs are served to customers at the cost of 20 on regular days. However, the same item is served to the customers at a lower price during discount days. The discounted rate of the item is 11.
Explanation:
..
A general formula for a parabola is x2=4py. what is the value of p in the equation x2=12y?
Answer:
the answer is 3 because 4*3=12
You push a 10 kg cart and it accelerates at 2m/s. What force did you with?
Answer:
20 N
Explanation:
force = mass x acceleration
force = 10 × 2
force = 20 N
A characteristic that can be passed from parent to offspring through genes is called
Answer:
heridity That's the answer
A rectangular prism has a length of 9 in. , a width of 4 in. , and a height of 112 in. The prism is filled with cubes that have edge lengths of 12 in. How many cubes are needed to fill the rectangular prism? enter your answer in the box. To fill the rectangular prism, cubes are needed
Answer: The answer is 432
Explanation: I did the test on K12
Jhope gives you hope and luck
Answer:
432
Explanation:
I took the K12 Unit 4.10 Test
After reviewing the results of a math test, the teacher tells the class that those students who completed their review worksheets scored an average of 10 points higher on the test than those students who did not complete their review worksheets. Which of the following best describes how the teacher likely came to this conclusion?
The option that best describes how the teacher likely came to this conclusion is that:
The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.What is observational study?An observational study is known to be a kind of study where a researcher do observes the subjects without having any form of interference with them.
Here, the researcher is said to have no control over any of the treatments that is used on the subjects. All the have to do is observe and record their findings.
See options below
A. The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.
B. The teacher conducted a sample survey by asking students if they completed their review worksheets and if they think they did well on the test.
C. The teacher performed a controlled experiment in which one group of students decided not to complete their review worksheets and the other group decided to complete their review worksheets.
D. The teacher performed a random experiment in which the test scores of one group of students would be higher and the test scores of the other group would be lower.
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Which oxidizing agent will oxidize br− but not cl− ?
A doctor is measuring the mean systolic blood pressure of female students at a large college. Systolic blood pressure is known to have a skewed distribution. The doctor collects systolic blood pressure measurements from random sample of 28 female students. The resulting 90% confidence interval is (100. 4, 159. 6). Units of systolic blood pressure are mmhg. Which one of the following conclusions is valid?
Using the Central Limit Theorem, it is found that the valid conclusion is given as follows:
The sampling distribution will probably not follow a normal distribution, hence we cannot draw a conclusion.
Central Limit TheoremThe Central Limit Theorem establishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the sampling distribution is also approximately normal, as long as n is at least 30.
In this problem, we have a skewed variable with a sample size less than 30, hence the Central Limit Theorem cannot be applied and the correct conclusion is:
The sampling distribution will probably not follow a normal distribution, hence we cannot draw a conclusion.
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What can readers mainly infer about jordan baker based on her comments to nick in chapter 1?
What the readers can mainly infer about jordan baker based on her comments to nick in chapter 1 are;
He is dishonest person.She cheated in her first golf tournament.What can you infer from the comment?The story is taken from the book titled the Great Gatsby and what the reader can infer about Jordan Baker based on her comments to Nick in Chapter 1 is that he is dishonest individual and she cheated in her to begin with golf tournament.
Nick felt pulled in to her despite her untruthfulness and the fact that he himself claimed to be one of the few genuine individuals he has ever known.
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Niranjan has installed a new cpu in his computer, but nothing happens when he pushes the power button on the case. the led on the motherboard is lit up, so he knows the system has power. what could the problem be?
The most likely reason why the computer didn't come up is because Niranjan forgot to apply thermal paste between the CPU and the heat-sink and fan assembly.
What is a computer?A computer can be defined as an electronic device that is designed and developed to receive data in its raw form as an input and processes these data into an output (information) that could be used by an end user.
The components of a computer.Basically, the components of a computer system are classified as follows:
MotherboardCentral processing unit (CPU)Output InputIn Computer technology, it is very important for computer technicians to apply thermal paste between the central processing unit (CPU) and the heat-sink and fan assembly, in order to eliminate air gaps from the area and maximize heat transfer and dissipation.
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You are looking at comparable houses with the same asking prices in neighboring towns. The mill rate in the first town is 20 mills. The mill rate in the second town is 37 mills. Both houses are assessed at $175,000. Mill rate is the tax rate that is applied to the assessed value of a real estate property by a municipality. Your tax is calculated by multiplying the mill rate by the assessed value of a property and dividing by 1,000. What is the dollar difference in annual property taxes based on mill rate between the two towns?
The dollar difference in annual property taxes based on mill rate between the two towns is $2,975.
Dollar difference in annual property taxesFirst step is to calculate for first town
First town=Mill rate÷1,000×Property assessed value
First town=20 mills÷1000×$175,000
First town=$3,500
Second step is to calculate for second town
Second town=Mill rate÷1,000×Property assessed value
Second town=37mills÷1000×$175,000
Second town=$6,475
Third step is to calulate the difference
Difference=$6,475-$3,500
Difference=$2,975
Inconclusion the dollar difference in annual property taxes based on mill rate between the two towns is $2,975.
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Which describes triangle jlm? right obtuse scalene equilateral
Answer:equilateral
Explanation:
Answer:
equilatoral or D or edge
Explanation:
What is a likely consequence of a mutation that prevents apoptosis
Answer:
Look below
Explanation:
If apostolic is for some reason prevented, it can lead to uncontrolled cell division and the subsequent development of a tumor.
Big ideas math integrated mathematics iii solutions
The Big Ideas Math: A Bridge to Success Student Edition features several components to help position students for success, and keep them on the right track for mathematical proficiency. The Big Ideas Math Student Edition provides students with diverse opportunities to develop problem-solving and communication skills through deductive reasoning and exploration. Students gain a deeper understanding of math concepts by narrowing their focus to fewer topics at each grade level. Students master content through inductive reasoning opportunities, engaging activities that provide deeper understanding, concise, stepped-out examples, rich, thought-provoking exercises, and a continual building on what has previously been taught.
When the author quotes the video game researcher who said, it's difficult to find kids who earn poor grades but who do well in video games, the author is using a) hyperbole. B) a testimonial. C) an emotional appeal. D) statistical argument
The author who quotes the video game researcher is using statistical argument.
What is statistical argument?Statistical argument is an argument based on facts and figures from a research. This kind of argument requires the researcher to get values in order to make judgement.
Children who earn poor grades in school do well in playing video games. This is because, the researcher has found out how low they perform in class in terms of their test score and has used this as a measure to determine how poor they play video games.
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All of the following are controllable factors to maintaining a healthy body composition except:
Answer:
Heredity
Explanation:
You can't chose which family to be born in, which can be a consequence of bad composition along with other health issues passed down from family members.
Answer:
Heredity
Explanation:
Because you can't choose which family to be born into the other options are all controllable.
A 20 kg box rests on a table. What force does the earth exert on the box?
Answer:
The normal force acting on the body is equal to its weight, hence;
N = W = 196N
The normal force that the 20.0-kg box exerts on the 10.0-kg box is 98N
The formula for calculating the weight of an object is expressed as:
W = mg
m is the mass of the object
g is the acceleration due to gravity.
Given the following parameters
Mass of the box = 20.0kg
a) The weight of the box = 20 * 9.8
Weight of the box = 196N
Hence the weight of the box is 196N
Note that the normal force acting on the body is equal to its weight, hence;
N = W = 196N
b) if a 10.0-kg box is placed on top of the 20.0-kg box, the total mass will be;
M = 10 + 20 = 30kg
total weight = 30 * 9.8
Total weight = 294N
Since the normal force is equal to the weight, hence W = N = 294N
Weight of the 10kg box = 10 * 9.8 = 98N
Since the 10kg box is on top of the 20kg box, hence the normal force that the 20.0-kg box exerts on the 10.0-kg box is 98N
Explanation:
Find the mass of alcl3 that is produced when 10. 0 grams of al2o3 react with 10. 0 g of hcl according to the following equation. Al2o3(s) + 6hcl(aq) → 2alcl3(aq) + 3h2o(aq)
The balanced reaction
Al₂O₃ (s) + 6 HCl (aq) → 2 AlCl₃ (aq) + 3 H₂O (aq)
says that 1 mol Al₂O₃ reacts with 6 mol HCl to produce 2 mol AlCl₃.
We start with
• (10.0 g Al₂O₃) (1/101.96 mol/g) ≈ 0.0981 mol Al₂O₃
• (10.0 g HCl) (1/36.46 mol/g) ≈ 0.274 mol HCl
We can use up to
(0.274 mol HCl) (1 mol Al₂O₃ / 6 mol HCl) ≈ 0.0457 mol Al₂O₃
and consume all the HCl in the process (while also leaving an excess of about 0.0524 mol Al₂O₃) to produce approximately
2 (0.0457 mol Al₂O₃) (2 mol AlCl₃ / 1 mol Al₂O₃) ≈ 0.183 mol AlCl₃
This has a mass of about
(0.183 mol AlCl₃) (133.3 g/mol) ≈ 24.4 g AlCl₃
Which circuit diagram represents voltmeter v connected correctly to measure the potential difference across resistor r2?
To measure the potential difference across resistor r2, the voltmeter is connected in parallel with the resistor.
What is a voltmeter?A voltmeter is an electrical instrument device that is used to measure the potential device or voltage between two points in an electric circuit. A voltmeter can also measure the potential difference across circuit element.
To measure the potential difference across resistor r2, the voltmeter is connected in parallel with the resistor. That is both terminals of the voltmeter are connected to the terminals of the resistor.
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Answer: circuit 3
Explanation:
Which phrase best summarizes the function of the endocrine system
Answer: To regulate bodily processes with the help of chemical signals ( Hormones)
Explanation: Endocrine means without duct, that is the chemical substances released into your blood to achieve homeostasis and regulate the functioning of your body
Four ways in which one's acceptance of responsibility
Answer:
accountability,empathy, being respectful,being honest.
Explanation:
once you do those things that is accepting responsibility for your actions.
Advise a friend who responds to conflict by avoidance on why it is not healthy
because of the way people use it something like that
What was the purpose of the woodstock music festival?
Answer:
Woodstock was an opportunity for people to escape into music and spread a message of unity and peace. Although the crowd at Woodstock experienced bad weather, muddy conditions and a lack of food, water and adequate sanitation, the overall vibe there was harmonious.
Explanation:
hope this helps
pls mark as brainliest
People had the chance to unwind with music at Woodstock while also promoting harmony and peace and sanitation and country.
Thus, It was the year 1969. A group of young Americans were looking for their place in a world that was changing quickly. Three days of peace and music seemed to be exactly what a divided country needed during that period of strife and ambiguity and woodstuck.
A stage in the midst of a tiny agricultural field in New York finished on the global stage. At the time, nobody realized that those three days of music, mud, and memories would give rise to a whole cultural phenomenon and woodstuck.
On August 15, 1969, the three-day Woodstock Music Festival got underway as 500,000 people waited on a dairy farm in Bethel, New York.
Thus, People had the chance to unwind with music at Woodstock while also promoting harmony and peace and sanitation and country.
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Determine whether the triangles are similar or not. If so state how they are similar
Answer:
The answer is d
Explanation:
i did it for school
A mixture of sodium hydroxide, naoh(s) and benzoic acid, hc7h5o2(s), consists of a total of 0. 50 moles. This mixture is dissolved in 1. 0 l of water and the ph of the resulting solution is determined to be 12. 52. Find the mole fraction of benzoic acid in the initial mixture
With a resulting solution of 12.52 and 1 m.l of water, the mole fraction of Benzoic acid that is in this mixture is 0.4669
How to solve for the mole fraction of Benzoic acidpH = 12.52
pOH = 14 - 12.52
= 1.48
OH⁻ = [tex]10^-^1^.^4^8[/tex]
= 0.0331
The concentration of excess ionsThe total number of excess OH⁻ that is required to make salt
= 0.5 - 0.0331
= 0.4669
H+ = 0.4669/2
= 0.2334
The mole fraction of Benzoic acid that would be here would be gotten by:
0.2334/0.5 = 0.4669
We conclude that the mole of Benzoic acid would be 0.4669 moles.
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In 2010, there were approximately 50,000,000 latinos in the united states. At a growth rate of 2. 5% per year, what will the latino population be in 2020?
The annual population growth rate formula used to calculate compounded growth, the final population of the latinos is
640,00,000
Population Growth Rate Formula: Compounded GrowthGiven
P , future population size = ?P ' initial population size = 50,000,000i growth rate = 2.5%n number of periods, such as years = 2010-2020 = 10 yearsP =P′(1+i)^n
Substitute our given data to final the final population of latinos
P = 50,000,000(1+0.025)^10
P = 50,000,000(1+0.025)^10
P = 50,000,000(1.025)^10
P = 50,000,000*1.28
P = 640,00,000
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