Answer:
Chemical structure determines the molecular geometry of a compound by portraying the spatial arrangement of atoms and chemical bonds in the molecule. This provides chemists with an important visual representation of a chemical formula.
Which one of the following descriptions most accurately describes what is occurring in the half cell containing the cu electrode and cu2+(aq) solution?.
Water is being pumped from a large lake to a reservoir.
Answer:
Water is being pumped from a large lake to a reservoir 25 m above at a rate of 25 L/s by a 10-kW (shaft) pump. If the irreversible head loss of the piping system is 5 m, determine the mechanical efficiency of the pump.
Explanation:
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itz by Riddhi
A binary number is to be transformed by appending three 0s to the end of the number. For example, 11101 is transformed to 11101000. Which of the following correctly describes the relationship between the transformed number and the original number?.
Numbers can be converted from one base to another base. a. The transformed number is 8 times the value of the original number.
Given that:
Three 0s are appended to a binary digit to get a new binary digit.
Using the given values, the transformation can be illustrated as follows:
Where:
represents the three appended 0s.
In binary represents 8 in decimal.
So, the above illustration can be expressed as:
This means that the new or transformed number is 8 times the original number.
Which is the percent composition of bromine in the compound nabr?.
Answer:
72%
Explanation:
Which summary of the passage is the best? brutus wants caesar to die. Even though brutus has no personal reason for killing caesar, brutus decides that, for the good of the people, caesar must be killed. If caesar were crowned, it may change his personality, and the power may cause him to become dangerous. Brutus compares caesar to a snake. The snake comes out in the sunshine. People must be very careful when walking around the cunning snake. Crown caesar and i agree that we may be giving him the power to sting us.
The best summary will be "Crown caesar and I agree that we may be giving him the power to sting us".
A summary is defined as the main idea of a passage. It tells the reader the idea of a whole text before reading the passage.A summary is important to students so that they can easily discern the irrelevant statements in a text and help them focus on the main idea.Based on the given passage, the best summary will be "Crown caesar and I agree that we may be giving him the power to sting us".
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Answer:
its B
Explanation:
Which of the following men supported u. S expansionism in the pacific?.
it is wrong answer and bye
Answer:
William Jennings Bryan
Alfred Thayer Mahan
Emilio Aguinaldo
Explanation:
Which of the following is not a characteristic of the type b personality?.
Answer:
Is more emotional & perspective, laid back.
How many grams of lead product would theoretically be produced between 17. 0 g potassium iodide, ki, and 25. 0 g of lead (ii) nitrate, pb(no3)2?.
The number of grams of lead product that would theoretically be produced from the given reaction is; Mass of lead product = 23.6 g
Potassium iodide reacting with Lead(II) Nitrate would yield the balanced equation;
2KI + Pb(NO₃)₂ = 2KNO₃ + PbI₂
2moles : 1 mole = 2 moles : 1 mole
From online tables;
Molar mass of KI = 166 g/mol
Molar mass of Pb(NO₃)₂ = 331.2 g/mol
We are given;
Mass of KI = 17 g
Mass of Pb(NO₃)₂ = 25 g
Thus;
Number of moles of PbI₂ yielded in order to find the limiting reactant will be;
no of moles of PbI₂ from KI = (17g/166 g/mol) × (1 mole of PbI₂/2 mol of KI)
no of moles of PbI₂ from KI = 0.0512 mols
Similarly;
no of moles of PbI₂ from Pb(NO₃)₂ = (25g/331.2 g/mol) × (1 mole of PbI₂/1 mol of Pb(NO₃)₂)
no of moles of PbI₂ from Pb(NO₃)₂ = 0.0755 moles
We can see that KI produced the least amount of moles. Thus;
Mass = 0.0512 * molar mass of PbI₂
From tables, molar mass of PbI₂ = 461 g/mol
Thus;
Mass of lead product = 461 * 0.0512
Mass of lead product = 23.6 g
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Two football players are running toward each other. One football player has a mass of 105 kg and is running at 8. 6 m/s. The other player has a mass of 90 kg and is running at -9. 0 m/s. What is the momentum of the system after the football players collide? 93 kg · m/s 1,713 kg · m/s. 810 kg · m/s. 903 kg · m/s.
The correct answer is P = 1740 kg · m/s, we got this answer by applying the momentum expression which is P = Δ(mv), based on the fact that the mass is not constant
Given data
Mass of Player one = 105kg
Mass of Player two = 93Kg
The Velocity of Player one = 8.6m/s
The Velocity of Player two = -9.0m/s (the negative sign indicates the opposite direction to player one)
Applying Newton’s Second Law in Terms of Momentum because the mass is not constant
When Newton’s second law is expressed in terms of momentum, it can be used for solving problems where mass varies,
We also want to assume that the players stuck together after the collision
An inelastic collision, in contrast to an elastic collision, is a collision in which kinetic energy is not conserved due to the action of internal friction.
P = M1V1 + M2V2
P= 105*8.6+93*9.0
P = 903 +837
P = 1740 kg · m/s.
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The image shows what happens when an antacid tablet is placed in water. A glass of water is shown with a tablet beside it. An arrow points to a second glass, where the tablet can be seen at the bottom of the glass with bubbles rising from the tablet. The process shown in the image can best be described as a rapid chemical reaction where gas is released. Slow chemical reaction where light is being given off. Slow chemical reaction where the liquid changes color. Rapid chemical reaction where heat is suddenly released.
There are different kinds of reaction. The process shown in the image can best be described Rapid chemical reaction where gas is released.
When an antacid tablets is placed in water, There is a chemical reaction. The water is known to reacts with the tablet and forms a bubbles full of carbon dioxide gas.When the water touches the tablet, suddenly, the reaction or fizzing, happens quickly.
Conclusively, when an antacid tablet is placed into a glass of water, it will produce a chemical change.
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Answer:
a
Explanation:
Which are the functions of the respiratory system brainly.
Answer:
Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood
How many moles of helium atoms are there in 2. 4 x 1024 helium atoms?.
Answer:
n = (2.4 x 10^24 atoms) x ((1 mol)/(6.02 x 10^23 atoms)) = 4.0 mol
What is essential to delivering a successful presentation.
Answer:
The principles of good communication.
Explanation:
Got it right on the quiz.
What does the passage suggest about english women of the time?.
It can be noted that the passage suggested that English women of the time were not treated equally as men.
This is an incomplete question. Therefore, an overview will be given. It should be noted that in the olden days, men held power over women.
Women aren't treated as equal to men. Also, the roles of women were defined by men. Women supported their families and took care of their homes.
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How many atoms would be contained in 454 grams of iron (fe).
Answer:
4.90 x 10^24 atoms
Explanation:
Answer:
4.89 x 10^24 atoms
Explanation:
you can say 4.9 x 10^24 atoms too
the 24 is the exponent for the 10
Which method of analysis does not classify variables as dependent or independent.
The method of analysis does not classify variables as dependent or independent is cluster analysis.
Cluster analysis is a method that is used to process data in statistics. In cluster analysis, data is classified into groups based on similar characteristics the data share. For example, if cluster analysis is used to group students, students may be divided into clusters based on their gender or class.
An independent variable is the variable that is manipulated by the researcher. It is the variable that is tested to determine its effect on the dependent variable.
The dependent variable is the variable that is being measured in an experiment.
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Plz don’t answer if you don’t know the answer and thank you if you helped me god may bless u
From Father's Choice
(Page 56)
Father avoids Mother when she is ill rather than trying to cure or even comfort her before
dying. Write a paragraph explaining what you think is going on in his mind.
Book: Mechanica by Betsy Cornwell
Answer:
Explanation:
The Father is proably tramatized but he wants to stay strong for mother,considering the fact that she is about to die. He is proably very hesterical but, must stay strong because it will make mother sad,and she will die dissapponted. He is thinking that if he cries or if he tries to make it better it will only make the situation worse. He feels like e is going to ruin something if he tries to stay with Mother. It's better to stay away because it's only gonna hurt Father because Mother is already heading home.
Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor of and then a rotation a dilation with a scale factor of and then a translation a dilation with a scale factor of 4 and then a rotation a dilation with a scale factor of 4 and then a translation.
Answer:
B a dilation with a scale factor of 1/4 and then a translation
Explanation:
on edgenunity
Answer:
B
Explanation:
Anmol’s car, which weights 1,000 kg, is out of fuel. Anmol is trying to push the car to a fuel station, and he makes the car go 0. 05 m/s/s. Using newton’s second law, compute how much force anmol is applying to the car.
Answer:
please give me brainlyist
A 0. 2 kg rubber ball is dropped from the window of a building.
Answer:
200grams rubber ball is dropped from the window of a building
A 1. 80-kg block slides on a rough, level surface. When it is traveling at 2. 00 m/s, the block hits a linear, ideal spring and compresses it by a distance of 11 cm before (momentarily) coming to rest. The coefficient of kinetic friction between the block and the surface is 0. 56. What is the force constant of the spring?.
Use the work-energy theorem.
The total work W performed on the block is done by friction and the restoring force in the spring, both of which oppose the block's motion. By Newton's second law,
• the net horizontal force on the block is
∑ F (hor) = -f - s = ma
where f = magnitude of friction, s = mag. of restoring force, m = 1.80 kg, and a is the acceleration of the block; and
• the net vertical force on the block is
∑ F (ver) = n - mg = 0
where n = mag. of normal force.
It follows that
n = mg ⇒ f = 0.56n = 0.56mg
and so the work done by friction as the spring is compressed by 11 cm = 0.110 m is
W (friction) = -0.56mg (0.110 m) = -1.09 J
The work done by the spring as it compresses is
W (restoring) = -1/2 k (0.110 m)²
where k is the spring constant.
Then the total work is
W = -1.09 J - 1/2 k (0.110 m)²
By the work-energy theorem, this work is equal to the change in the block's kinetic energy,
W = ∆K
Since it comes to a stop, we have
∆K = 0 - 1/2 mv² = -1/2 (1.80 kg) (2.00 m/s)² = -3.60 J
So, we have
-1.09 J - 1/2 k (0.110 m)² = -3.60 J
and solving for k gives
k = (-3.60 J + 1.09 J) / (-1/2 (0.110 m)²)
k ≈ 415 N/m
Hillary glued three rectangular pieces of cardboard together to create a house for her lizard in the shape of a triangular prism. The dimensions are shown in the image below.
What evidence do the positions of the peaks and dips in its spectrum provide about an object?.
The positions of the peaks and dips in its spectrum provide evidence about the ELEMENTAL COMPOSITION of an object. Each element can absorb light at determined wavelengths.
Each element can absorb light rays at determined wavelengths because elements are composed of different atoms.
Spectroscopy is a field of study focused on the interaction between the atoms of an element and electromagnetic radiation as a function of the wavelength.
This field (spectroscopy ) studies the absorption and emission spectra of light by matter, which can be used to determine the elemental composition of an object.
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A book is pushed with an initial horizontal velocity of 5. 0 meters per second off the top of a desk. What is the initial vertical velocity of the book?.
Which scenario can be represented using the inequalities below? 1. 25 < x < 1. 5 a container of milk costs at least $1. 25 but less than $1. 50. A student spends at least 1 hour 15 minutes, but no more than 1 hour 30 minutes on homework. A tip added to a restaurant bill is less than or equal to 25% or less than or equal to 50%. The point value of a test item is more than 1. 25 points and less than 1. 5 points.
Answer:
Explanation:22
Which best describes how the human circulatory and respiratory systems interact.
Answer:
The respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells. C. The respiratory system breaks down food for cell energy, while the circulatory system rids the body of waste.
You select cell a1, hover the pointer over the cell border to reveal the move icon, then drag.
A spreadsheet is used to make the organization of data in a tabular form through a computer application software which can also perform mathematical operations.
With this in mind, we can see that the data is arranged in rows and columns as they can be used to record data for business invoices, expenditures, etc.
Some popular spreadsheets includes:
Micros0ft ExcelLibre0ffice, etcA cell border can be added, resized and moved, along with the contents to another location.
Please note that your question is incomplete so I gave you a general overview to help you better understand the concept.
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What is one drawback shared by both monopolies and oligopolies.
Answer:
They can harm consumers by fixing price
What change in a population would you expect to see if a selection pressure was against the trait of a dominant allele in that population?.
Answer:
The change in population in the given condition would be an increase of true recessive traits in the population and there would be only a few individuals with dominant traits.
In case of selection pressure was against the dominant trait, then individuals of the population who have true recessive alleles would have an advantage over the heterozygous and dominant individuals of the population.
There would be very few individuals carrying its dominant genotype and it may eventually be extinct, however, it would be still dominant. The recessive trait would just become more prominent rather than becoming dominant.
Thus, the number of recessive traits would increase in population, and the number of dominant decrease to numbers.
Explanation:
Marcus has been reading about a national program answers.
What the reader can conclude about Marcus is: A. Marcus thinks the television has a negative effect on people.
The question is about a letter written by a young Marcus to the Editor of his school's newspaper.
In that letter, he mentioned the huge number of hours spent by people watching television. It amounts to 2 months in a year and 9 years of a person's life. All of these hours will never be gotten back.
So, Marcus thinks that television has a negative effect on people.
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