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An 8.65-g sample of an unknown group 2a metal hydroxide is dissolved in 85.0 ml of water. an acid-base indicator is added and the resulting solution is titrated with 2.50 m hcl(aq) solution. the indicator changes color signaling that the equivalence point has been reached after 56.9 ml of the hydrochloric acid solution has been added.

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Answer;

The molar mass of metal hydroxide = 121.66 g/ mole

The formula is Sr(OH)2

Explanation;

M(OH)2 + 2 HCl = MCl2 + 2 H2O  

Moles of the acid = 2.5 x 56.9 / 1000 = 0.14225  

Therefore; moles of hydroxide at the eq point = 0.0711 moles  

These have a mass of 8.65g

Thus; mass of 1 mole = 8.65 / 0.0711

         = 121.66 g / mole  

That means the compound is Sr (OH)2 ..

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True or false, rotational symmetry is the quality a design has if it maintains all characteristics when it is rotated about a point

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True or false, rotational symmetry is the quality a design has if it maintains all characteristics when it is rotated about a point

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Which statement is true? A sample statistic can never be equal to the population parameter. Point estimates are defined for both samples and populations. To calculate a sample proportion, we need to know the population size. To calculate a point estimate, we need to know the sample size

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Answer:

Option C is true. To calculate a sample proportion, we need to know the population size.

Step-by-step explanation:

To calculate a sample proportion, we need to know the population size. – This is the true statement.

A sample statistic can never be equal to the population parameter. This is false. A statistic is a feature of sample and a parameter is a feature of  population. Every sample of the selected size has an equal chance of being used.

Point estimates are defined for both samples and populations. This is false. A point estimate is used to estimate the population parameter.

To calculate a point estimate, we need to know the sample size. This is false. Population is needed.

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Each point that lies on a circle satisfies that equation for that circle

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Each point that lies on a circle satisfies that equation for that circle

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What clues tell the reader that “The Yellow Wallpaper” by Charlotte Perkins Gilman is written in the first-person point of view?A.The main character jumps quickly from thought to thought. B.The main character uses the pronouns I and my. C.The main character refers to her husband as John. D.The main character often feels tired and lazy.

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Answer: B.The main character uses the pronouns I and my.

In The Yellow Wallpaper, we know that the text is written from the first-person point of view because the main character uses the pronouns “I” and “my” when telling the story. Telling a story from the first-person point of view has several advantages. It can allow the reader to get to know the thoughts of a character more deeply. It also allows imagery to be more vivid, and the character’s motivations and desires to be better explained.

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How do you find the equation of a line when the slope is 5 and contains the point (3,2)?

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How do you find the equation of a line when the slope is 5 and contains the point (3,2)?

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How can the reader best interpret the theme of a story? A.By imagining what happens to the characters next B.By developing a personal opinion about the story C.By focusing on details from the story that suggest a universal truth D.By rewriting the story using a different point of view

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How can the reader best interpret the theme of a story? A.By imagining what happens to the characters next B.By developing a personal opinion about the story C.By focusing on details from the story that suggest a universal truth D.By rewriting the story using a different point of view

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How does geijer’s comment support macgregor’s point? it describes the way tea became popular in great britain. it shows how many wars were started as tea became desired. it illustrates the popularity of tea in britain during the 1800s. it argues that tea is not originally from great britain?

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The correct answer is It illustrates the popularity of tea in Britain during the 1800s.

His comment is basically that it was so popular there that it became their national drink more or less. It still stands today and Britain is in pop culture always referenced for drinking tea and their connection to afternoon tea drinking. Everyone drinks it and in large amounts.

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A cone is a solid made from a disc, any point on that disc, and all points between them. True or False

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Answer with Explanation:

Disc, is a three dimensional shape,made up of circles of different radii and is uncovered from top.Different from Bowl,which is quite deeper, do not extend far down from top.

So,to make a cone , you have to take three points on the surface of the disc such that it forms a triangular shape,and when you cut it,you will get a shape similar to cone.

So, it is a false statement, which asserts that, A cone is a solid made from a disc, any point on that disc, and all points between them.  

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Best answer get Brainliest. 50 points. Emerson earns money from walking dogs and answering surveys. He earns $5 a week for each dog he walks and $0.10 for each survey he answers. Last week, Emerson answered 100 surveys and earned $35. Part A: Create an equation that will determine the number of dogs he walked. (3 points) Part B: Solve this equation justifying each step with an algebraic property of equality. (6 points) Part C: How many dogs did Emerson walk last week? (1 point)

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Step-by-step explanation:

5x + 10 = 35 is your equation

5x = 35 – 10    bc u brought the 10 to the other side so its symbol changes

5x = 25         now were going to bring 5 to the other side to do that we have to divide both sides by 5 (same thing like the 10)

5x/5 = 25/5

x = 5

5 dogs

~batmans wife dun dun dun…..

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While arguing with a coworker, it is best to point out mistakes immediately so that you do not forget something later. Please select the best answer from the choices provided. T F

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The above statement is false.

Well, it generally depends on the situation. If you and your co worker are alone in that work place then you may go ahead and tell him or her what wrong they did or help them out in their mistake.

But if your boss is also there or some more co workers, your co worker might feel ashamed in front of them and demeaned so it is better to write it on a piece of paper and tell them afterwards when you guys are alone.

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Trevor is pulling his younger brother in a wagon. He pulls the wagon 50 m to the corner with a force that is a parallel with the ground. He then turns the wagon around and pulls it 50 m back to the starting point with the same force at an angle of 30 degrees with respect to the ground. How does the amount of work Trevor performs going to the corner compare with the amount of work he performs coming back? A) they are the same because he uses the same amount of force B) they are the same because he travels the same distance C) he does less work coming back because the force moving the wagon is only 50cos30 D)he does more work coming back because the force moving the wagon is only 50cos60

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Work has the greatest value when the force done is
parallel to the direction of motion. In this case, the work done in pulling the
wagon to the corner is greater than the amount of work done in pulling the
wagon back to the starting point. This is because an angle of 30 degrees is
applied when pulling it back. The formula for work when angle is applied is:

Wx = W cos θ

Where in this case, θ = 30

Therefore,
the answer to this is letter:

C) he does less work coming back because the force moving
the wagon is only 50cos30

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What is the colligative property that means a solution typically has a measurably higher boiling point than a pure solvent alone? A) osmotic pressure B) boiling point elevation C) boiling point alleviation D) vapor-pressure lowering

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What is the colligative property that means a solution typically has a measurably higher boiling point than a pure solvent alone? A) osmotic pressure B) boiling point elevation C) boiling point alleviation D) vapor-pressure lowering

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What is a radius? Is it the point in the middle?How do you calculate the circumference using 3.14 pi?

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Answered by answersmine AT 22/10/2019 – 03:32 AM

The radius is the distance from the center point of a circle to the “edge” of the circle. To calculate the circumference you use the formula: C=(D)(pi)…D stands for distance from one end of the circle to the other through the center point – basically the distance is the radius of any circle just doubled.

Post your answer

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My grandfather, who lost his short-term memory sometime during the first Eisenhower Administration, calls me into his study because he wants to tell me the story he’s never told anybody before again. . . . My grandfather slams the door and motions me to the chair in front of his desk. I’ll be thirteen in two weeks. “There’s something I want to tell you, son,” he says. “Something I’ve never told anybody. You think you’re ready? You think you’ve got the gumption?” “I think so.” “Think so?” “I know so, sir. I know I’ve got the gumption.” . . . “It was late,” he says. “Someone knocked on my stateroom door. I leaped up. In those days I slept in uniform—shoes, too.” My grandfather smiles. His face is so perfectly round that his smile looks like a gash in a basketball. I smile back. “Don’t smile,” he says. “Just because I’m smiling, don’t assume I couldn’t kill you right now. Know that about a man.” Source: Orner, Peter. “The Raft.” The Atlantic Online. The Atlantic Monthly Company, Apr. 2000. Web. 10 May 2011. Which point of view does the text use?

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My grandfather, who lost his short-term memory sometime during the first Eisenhower Administration, calls me into his study because he wants to tell me the story he’s never told anybody before again. . . . My grandfather slams the door and motions me to the chair in front of his desk. I’ll be thirteen in two weeks. “There’s something I want to tell you, son,” he says. “Something I’ve never told anybody. You think you’re ready? You think you’ve got the gumption?” “I think so.” “Think so?” “I know so, sir. I know I’ve got the gumption.” . . . “It was late,” he says. “Someone knocked on my stateroom door. I leaped up. In those days I slept in uniform—shoes, too.” My grandfather smiles. His face is so perfectly round that his smile looks like a gash in a basketball. I smile back. “Don’t smile,” he says. “Just because I’m smiling, don’t assume I couldn’t kill you right now. Know that about a man.” Source: Orner, Peter. “The Raft.” The Atlantic Online. The Atlantic Monthly Company, Apr. 2000. Web. 10 May 2011. Which point of view does the text use?

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The point (-2,6) is on the line given by which equation below?

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Answered by answersmine AT 22/10/2019 – 03:44 AM

You do not have a multiple choice for the answer, but an equation for a line that includes that point starts off by using y=M(X)+b. So the equation can be anything but an example is y=-2(X)+2. To prove this equation works substitute the x and y values. 6=-2(-2)+2 —->   6=4+2 —–>6=6

Post your answer

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Why does the argument presented below NOT prove the point being argued? "You should not hire Leah. Last week, her boyfriend drove all the way from Oklahoma to Illinois to see her, and after he arrived, she broke up with him. Can you believe that? Why couldn't she have done that over the phone or something? Instead, she waited until he spent all that time and money to go see her. You shouldn't hire somebody who would treat someone else like that." A. We should not feel pity for Leah. She decided to act cold and what goes around comes around. B. Leah should definitely be hired because she is the best person for the job. C. Leah's relationship with her boyfriend does not have anything to do with her qualifications for the job. D. Leah's boyfriend must have done something really bad for her to do that to him.

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Why does the argument presented below NOT prove the point being argued? “You should not hire Leah. Last week, her boyfriend drove all the way from Oklahoma to Illinois to see her, and after he arrived, she broke up with him. Can you believe that? Why couldn’t she have done that over the phone or something? Instead, she waited until he spent all that time and money to go see her. You shouldn’t hire somebody who would treat someone else like that.” A. We should not feel pity for Leah. She decided to act cold and what goes around comes around. B. Leah should definitely be hired because she is the best person for the job. C. Leah’s relationship with her boyfriend does not have anything to do with her qualifications for the job. D. Leah’s boyfriend must have done something really bad for her to do that to him.

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Point R(5,-3) and point N(9,-4) are on line k. What is the slope of the line passing through these points?

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Point R(5,-3) and point N(9,-4) are on line k. What is the slope of the line passing through these points?

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The graph of y = x 3 is translated so that the point (1, 1) is moved to (1, 4). What is the equation of the new graph?

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Answer:

y=x^3+3

Step-by-step explanation:

The graph of y = x 3 is translated so that the point (1, 1) is moved to (1, 4).

the point (1, 1) is moved to (1, 4), 1+3=4

So 3 is added with y to get (1,4)

To get the equation of new graph , add 3 with y

y=x^3

To add 3 with y, we put +3 at the end of the given equation

the new equation becomes

y=x^3+3

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Some life forms move so slowly that their movement cannot be detected by normal observation. The best way to determine any movement is by placing a mark at some point, and observing any change in position from it. Why is this true?

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Some life forms move so slowly that their movement cannot be detected by normal observation. The best way to determine any movement is by placing a mark at some point, and observing any change in position from it. Why is this true?

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At what point in the actions of the conflict over he will lead Roman to the future resolved

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Answered by answersmine AT 22/10/2019 – 03:49 AM

When caesers conspirators forces are overcome at phillipe. caeser had many conspirators against him and there were a large amount of them in phillipe that ultimatly lead to ceasers death afterwards thus the future resolved

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Which polynomial function has x intercepts –1, 0, and 2 and passes through the point (1, –6)? f(x) = x3 – x2 – 2x f(x) = 3×3 – 3×2 – 6x f(x) = x3 + x2 – 2x f(x) = 3×3 + 3×2 – 6x

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Which polynomial function has x intercepts –1, 0, and 2 and passes through the point (1, –6)? f(x) = x3 – x2 – 2x f(x) = 3×3 – 3×2 – 6x f(x) = x3 + x2 – 2x f(x) = 3×3 + 3×2 – 6x

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Which is an equation of a circle with center (-5,-7) The pass through the point (0,0)

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The equation of a circle that has a center at (h,k) and radius of r is
(x-h)²+(y-k)²=r²

so given center (-5,-7)
(x-(-5))²+(y-(-7))²=r²
(x+5)²+(y+7)²=r²

passes through (0,0)
sub the point to find r
(0+5)²+(0+7)²=r²
25+49=r²
74=r²

the equation is
(x+5)²+(y+7)²=74 or equivilently
(x+5)²+(y+7)²=(√74)²

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What is an equation of the line that is parallel to y=3x-8 and passes through the point (4,-5) A. y=3x-7 B. y=3x+7 C. y=3x+17 D. y=3x-17

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What is an equation of the line that is parallel to y=3x-8 and passes through the point (4,-5) A. y=3x-7 B. y=3x+7 C. y=3x+17 D. y=3x-17

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Find the distance between point A (5,3) and point B (1,0) on a graph using the Pythagorean theorem

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Find the distance between point A (5,3) and point B (1,0) on a graph using the Pythagorean theorem

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