Answer:
And if we have a binomial times a binomial we'll have four products or we can think of this as double distribution. We distribute the a so we'd have a times C plus a times D.
Explanation:
What is the molar solubility of agcl (ksp = 1. 80 × 10⁻¹⁰) in 0. 500 m nh₃? (kf of ag(nh₃)₂⁺ is 1. 7 × 10⁷)
Based on the calculations, the molar solubility of AgCl in 0. 500 M of NH₃ is equal to 2.77 × 10⁻² M.
Given the following data:
Ksp of mg(oh)₂ = 1.8 × 10⁻¹⁰Concentration of NH₃ = 0.500Kf of ag(nh₃)₂⁺ = 1.7 × 10⁷How to determine the molar solubility.First of al, we would write the properly balanced chemical equation for this chemical reaction:
[tex]AgCl(s)\rightleftharpoons Ag^{+} (aq)+ Cl^{-}(aq)[/tex] Ksp = 1.8 × 10⁻¹⁰
[tex]AgCl(s) + 2NH_3(aq)\rightleftharpoons Ag(NH_3)_2^{+}(aq)[/tex] Kf = 1. 7 × 10⁷
K = Ksp × Kf
K = 1. 80 × 10⁻¹⁰ × 1.7 × 10⁷
K = 3.06 × 10⁻³
Mathematically, the Ksp for the above chemical reaction is given by:
[tex]K=\frac{ [Ag(NH_3)_2^{+}][Cl]}{[NH_3]^2}\\\\3.06 \times 10^{-3}=\frac{[x][x]}{0.50^{2 }}\\\\3.06 \times 10^{-3}=\frac{x^2}{0.25}\\\\x^2 = 7.65\times 10^{-4}\\\\x=\sqrt{7.65\times 10^{-4}}[/tex]
x = 2.77 × 10⁻² M.
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It states that for a chemical reaction to occur, the reacting particles must collide with one another.
Answer: Collision theory
Explanation:
All of the following have been associated with feelings of hope except __________.
Answer:
What Are the Answer Choices
Explanation:
I believe I know the answer, but I need the answer choices.
If 25 a 9 b 3=75 and 15 a 6 b 2=45, then 16 a 8 b 2=?
Answer:
64
Explanation:
since 25 a 9 b 3 =75
9/3 =3
3×25 equal 75
then
16 a 8 b 2=
8÷2=4
4 ×16 =64
In the poem "o captain! my captain!" by walt whitman, the central idea of this poem centers around the death of a hero. which line from the poem best illustrates this central idea?
Lesson 6.1 identifying and representing functions answer key go math
An example of Lesson 6.1 identifying and representing functions is Complete the table. write a rule as an algebraic expression for the output, then complete the last row of the table using the rule.
What are functions?In mathematics, a function is known to be the link or the relation that exist between a set of inputs and a set of other outputs.
The answer to the table is in the image attached. The solution is given below:
Note that the number of pages per minute:
= 1/2 = 0.5
Total cost = 0.5x
And x is the number of minutes.
x = 0.5x
30 = 0.5(30)
= 15
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nicole is socially inhibited and oversensitive to negative evaluation
Answer:
avoidant personality disorder
Read the article and use the information to answer the following questions. puberty when does puberty occur? what causes the changes that occur during puberty?
Answer:
include this: For girls, puberty typically occurs between the ages of nine and thirteen
For boys, puberty typically occurs between the ages of ten and fifteen.
An increase in hormones – estrogen and progesterone in girls and testosterone in boys – causes the changes that happen during puberty.
Explanation:
Puberty appears differently in boys and girls. It happens between ages 10 to 14 in girls while 12 to 16 in boys. This stage of puberty relies on hormonal imbalances.
What do you mean by Puberty?Puberty may be described as the time in the life of any person when a boy/girl becomes erotically mature.
In boys, puberty relies on the hormone testosterone which generates some changes like beard growth, voice modification, etc. In girls, puberty relies on the hormones estrogen and progesterone which drives some changes like breast development, menstrual cycle, etc.
Therefore, above exist some changes that happen during puberty.
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Which expression can be used to find the volume of the rectangular prism in cubic centimeters?
Answer:
I think it my be length x width x height
What is the most accurate analysis of the reason presented in the second sentence? the reason is logically sound, because the writer is expressing a fact that has been proven. the reason is logically sound, because the writer validates the reason with empirical evidence. the reason is not logically sound, because the writer does not include strong factual evidence. the reason is not logically sound, because the writer does not connect the reason to the claim.
Answer:
c
Explanation:
For a hyperbola, the foci lie on a line called the
Answer:
major acxic and minar acxic
Elementary linear algebra 11th edition chapter 1 solutions
An example of Elementary linear algebra 11th edition is given in the image attached.
What is elementary linear algebra?Linear algebra is known to be a part of math work. It is known to be the most easiest form of upper-level math works example is abstract algebra.
Conclusively, using the image attached, the answer will be (x1, x2) = (–8, 3)
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Algebra 1: concepts, skills, and problem solving (california) solutions
An example of Algebra 1 problem solving question is (3 + a) + b².
What is algebra?The Basics of Algebra are known to cover simple math areas such as numbers, variables, multiplication, division that are found in algebraic expressions.
Looking at this question, (3 + a) + b², you collect like terms;
(3 + a) + b²
= 3a + b²
Therefore, the answer is 3a + b².
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Precalculus with trigonometry: concepts and applications answers
Choose the best translation: employer trabajador administración inventario empleador
Answer:
D. empleador
Explanation:
The Spanish word “trabajadores” translated to English means workers. It is the word that does not fit in the group of answer choices.
What is “Trabajadores”?“Trabajadores” has been known as a noun while the rest of the words are adjectives that describe an object or a person. This was expressed in one of his deepest thoughts which expresses that: "the artist works on himself and his time, works to give clarity to his conscience and his contemporaries of himself and his time".
The key to finding the correct descriptor of Yolanda is to pay attention to gender. Yolanda is a feminine name, thus the adjective used to describe someone named Yolanda (presumably a female) in Spanish would take a feminine form.
Therefore, The Spanish word “trabajadores” translated to English means workers. It is the word that does not fit in the group of answer choices.
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which of the following diseases is not spread by droplet infection?
Gonorrhea refers to the type of disease which is not spread by droplet infection.
What is Gonorrhea?This is known as a se×ually transmitted disease which is caused by a bacterium.
It is spread through se×ual contact and not through droplet infection which was why it was chosen as the most appropriate choice.
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Find a common domain for the variables x, y, and z for which the statement ∀x∀y((x ≠ y) → ∀z((z = x) ∨ (z = y))) is true and another domain for which it is false.
The common domain for the variables is; It is true on every set with no more than 22 members and false on other sets.
What is the domain of the variables?
We are given the statement;
∀x∀y((x ≠ y) → ∀z((z = x) ∨ (z = y)))
Since x and y are different objects in the domain, then we can say that anything in the domain is equal to x or to y.
Now, If the domain M has two elements, it means that the given sentence will obviously hold. Also, a one-element domain will work since there wouldn't be a pair x, y such that x ≠ y.
We can conclude that the common domain for the variables is; It is true on every set with no more than 22 members and false on other sets.
An example is that it is true on {a,b} and false on R
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based on the data above, which of the following hypotheses about the future conditions in the arctic is most plausible if the trend seen from 2011 to 2017 continues?
The data here are NOT found, but it has been hypothesized that the arctic will continue defrosting and the albedo population will decrease.
What is climate change?Climate change refers to the progressive warming of the Earth planet, which is believed to be a consequence of human activities.
It is believed that the burning of fossil fuels is increasing global climate change by warming the Earth.
The burning of fossil fuels might cause the defrosting of the Arctic ice and decrease natural populations by increasing the greenhouse effects.
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The magnitude of vector u is 34, and the magnitude of vector v is 20. the dot product u · v = –10. what is the approximate angle between the vectors?
The approximate angle between the vectors named U and V with their magnitudes and dot product is gotten as; 91°
What is the angle between the vectors?We are given;
Magnitude of Vector U; |U| = 34
Magnitude of vector V; |V| = 20
Dot Product of u and v; U.V = -10
Formula for angle between vectors is;
θ = cos⁻¹[(U.V)/|U| * |V|]
θ = cos⁻¹(-10/(34 * 20))
θ = cos⁻¹-0.0135
θ ≈ 91°
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Answer: C
Explanation:
The term for the type of degrees earned by a group of people is
The terminology for the various type of degrees that are earned by a group of people is academic degree.
What is an academic degree?An academic degree can be defined as a type of qualification that is issued to a student or an individual upon successful completion of a programme, course of study and learning process.
This ultimatley implies that, an academic degree is a terminology that is used to describe or qualify the various type of degrees that are earned by a group of people, especially after successfully taking series of examinations.
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Answer:
Educational Attainment
Explanation:
Valid reasons why a company should definitely open a new production facility in latin america include
The valid reason is; the ability to earn bigger profit margins per branded pair sold in Latin America than in either Europe-Africa or Asia pacific.
What are the benefits of new production facility?The valid reasons why a company should definitely open a new production facility in latin america is because of the ability to earn bigger profit margins per branded pair sold in Latin America than in either Europe-Africa or Asia pacific regions.
The reason for that answer is because of pure business decision which is to make profits.
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A boundedintarray represents an indexed list of integers. in a boundedintarray the user can specify a size, in which case the indices range from 0 to size - 1. the user can also specify the lowest index, low, in which case the indices can range from low to low + size - 1.
The declaration of the data fields myItems and myLowIndex is that they prevent run time errors each time public methods needs to access the private data fields
How to determine the true statement?The boundedintarray is an illustration of arrays and lists
From the complete question, we have the declaration of the data fields:
myItems and myLowIndex
The declaration of the above data fields are used for the following reasons:
Prevent run time errorsAllows a public method to access private data fieldsHence, the true statement about the declarations prevent run time errors each time public methods needs to access the private data fields
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In exercises 7–14, either use an appropriate theorem to show that the given set, w, is a vector space, or find a specific example to the contrary.
A theorem in mathematics is the statement that has been proved it van be proved to be true.
What is a theorem?Your information is incomplete. Therefore, an overview will be given. A theorem simply means a statement that can be demonstrated to be true based in mathematical proportions and arguments.
A vector space is simply the set of objects called vectors that can be added together and multiplied by numbers that are called scalars. An example is a² + b² = c² for a right angled triangle.
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Suppose the government in this economy decides to decrease government purchases by $250 billion. the decrease in government purchases will lead to a decrease in income, generating an initial change in consumption equal to . this decreases income yet again, causing a second change in consumption equal to . the total change in demand resulting from the initial change in government spending is .
When the government decides to decrease government purchases by $250 billion, this will lead to a $175 billion decrease in income.
How to calculate the decrease in income?From the information, the government decides to decrease government purchases by $250 billion. The decrease in income will be:
= $250 × 0.7
= $175 billion
This decrease in income yet again will cause a second change in consumption equal to:
= $175 × 0.7
= $122.5 billion
The total change in demand resulting from the initial change in government spending will be:
= $250 × (1/30%)
= $250 × 3.33
= $833 billion
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WILL MARK YOU BRAINLIST DUE TODAY
Pick one of your ideas for an essay example and write an introductory paragraph for an essay about a situation that changed your mind about something you had believed?
Answer:
I used to think it was important to conform to what other people thought about me. The day I realized it wasn’t was the day I became free.
Gabrielle is writing a research paper about how reindeer are adapted to their habitat. Which two websites will most likely give gabrielle relevant information for her research paper?
Answer:
Reindeer Facts- All About Reindeer
Reindeer | Reindeer info page
Explanation: Got it right on edmentum
Answer: Answer:
Reindeer Facts- All About Reindeer
Reindeer | Reindeer info page
Explanation:
Brianna is working on her homework. her assignment is to come up with four representations for an exponential function of her choosing. she decides it is easiest to start by writing an equation, so she chooses . help brianna create the other three components of the web.
Brianna is working on her homework. using an exponential function in the form y = abˣ
What is an exponential function?
An exponential function is in the form:
y = abˣ
Where y, x are variables, a is the initial value of y and b is the multiplication factor.
Brianna is working on her homework. using an exponential function in the form y = abˣ
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A student knows the mass of one of the reactants of a chemical reaction and wants to calculate the mass of one of the products of the reaction. which process should the student follow?
There are different ways to calculate math. What the student is to do in the above scenario are:
To Multiply the mass of the reactant by its molar mass to find the number of moles of the reactant. Use the chemical equation to find the number of moles of the product. Divide the number of moles of the product by its molar mass to find the mass of the product.
What is the mass of reactant?The law of conservation of mass is one that states that in form of chemical reaction, the total mass of reactants is known and regarded as equal to the total mass of products.
The steps in mass calculations are mass = moles × molar mass
Calculate moles = mass(Mg) ÷ molar mass, moles.
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In order to figure out the distance, what do I do?
Answer:
d = square root of {(x2 - x1)^2 + (y2-y1)^2}
Explanation:
If you're referring to math-
the distance is equal to (the second x value minus the first x value)^2 plus (the second y value minus the first y value)^2
For example: this is my imaginary ordered pair, I want to find the distance between the points- (2,4) and (3,6)
So d= (3-2)^2 - (6-4)^2 all under a square root
3-2 is = to 1, and 1 squared is just 1.
6-4 is = to 2, and 2 squared is 4.
4+1 is = 5.
So your answer would be the square root of 5.
If your answer ended up as, for example, the square root of 16, you would go a step further and your answer, or distance would be 4, since 4^2 is 16
Lesson 19 transformations and congruence answer key
An example of Lesson 19 transformations and congruence work is given as congruent angles (Image attached). The answer is option AC.
What are transformations in math?Transformations are known to be some form of changes that are done in a shapes that are said to be placed on a coordinate plane through the act of rotation, reflection or translation.
Note that option C are congruent angles are two angles that are known to be congruent when their corresponding sides and angles are said to be of equal rate or measure.
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