Chemistry High School

PLZ HELP ON THESE QUESTIONSSS

Answers

Answer 1

Answer:

wat

Explanation:

Answer 2

3. Ans is 1.11 molal = 1.1 molal

Related Questions

Jim's car travels 60.2 meters in 5 seconds. Tara's car travels 72 in 6 seconds. What is the speed for each car? Whose car travels fastest?

Answers

Answer:

Jim's car travels: 12.04 meters per second.

Tara's car travels 12 meters per second.

Explanation:

Tara's car travels the fastest.

The electron configuration of element Y ends in s?p4. What is
the symbol for the ion most commonly formed by this element?
a y2+
b y2-
с ү6+
d Y

Answers

This problem is providing us with the end of the electron configuration an element as s²p⁴ and asks for the most commonly formed ion. At the end, the answer is b Y²⁻.

Electron configuration

In chemistry, when analyzing electron configurations, one must first take into account how the energy levels must be filled with electrons.

Now, note the problem states that the electron configuration ends by s²p⁴, which means it is closer to complete the octet so it needs two electrons in order to do so, as it behaves as a nonmetal.

Therefore, the most commonly ion formed by this element is Y²⁻, because of the fact that it needs two electrons to complete the octet and thus become chemically stable and likely to bond with a metal.

Learn more about electron configuration: https://brainly.com/question/5524513

A cube of sugar has the length of one side 4cm.find its volume

Answers

Answer:

Explanation:

since it's a cube all sides are equal

and to calculate volume you multiply the length by the hieght by the width

what is 37degrees Celsius in Si units

Answers

Answer:

310.15 Degrees Kelvin

Explanation:

37 Degrees Celsius = 310.15 Degrees Kelvin = 98.6 Degrees Fahrenheit

Conversion Factor from Celsius to kelvin

or 37 + 273 = 310 Degrees Kelvin

The materials are carried in a cell by the what

Answers

Answer:

The endoplasmic reticulum

what type of energy transfer occurs as a coiled spring is released

Answers

Answer:

When a spring is coiled up or a rubber band is stretched, mechanical energy is stored in it. When the spring uncoils or the rubber band snaps back, this energy is released. This stored mechanical energy is called potential energy because it has the potential to make things happen.

Explanation:

Hope it helps you :)

Keep Learning :)

lemon and amla have a sour taste. why

Answers

Answer:

They both contain citric acid.

Explanation:

Citric acid is sour and is found in citrus fruits such as lemon and amla. Acids usually have a sour taste and therefore lemon and amla are sour.

Calcium-49, a radioactive isotope, has a half-life of 9 minutes. If an 80-gram sample of the isotope decays for 27 minutes, how many grams of the original sample remain?

Select one:
a. 60
b. 10
c. 40
d. 20

Answers

Half-Life is the time required for half of the radioactive nuclei to decay to products.

In this case Calcium-49 has a half-life of 9 minutes and is allowed to decay for 27 minutes, meaning the sample experienced 3 half-lives.

80g of Calcium-49 allowed to decay for 9 minutes results in 40g of Calcium-49 (half-life 1)

40g of Calcium-49 allowed to decay for 9 minutes results in 20g of Calcium-49 (half-life 2)

20g of Calcium-49 allowed to decay for 9 minutes results in 10g of Calcium-49 (half-life 3)

b) 10g of Calcium-49 remains after 27 minutes of decay

hope this helps :)

If you transfer energy into two substances which one would melt first

Answers

Answer:

The substance with a weaker molecular attraction

What would be the advantage of using a molecular model.

Answers

Answer: Can pick it up and hold it, can rotate groups about bonds

and can look for symmetry

Explanation: A molecular model is a plastic model with interchangeable balls. Represents molecules and their processes.

The creation of mathematical models of molecular properties and behavior is molecular modelling, and their graphical depiction is molecular graphics, but these topics are closely linked and each uses techniques from the others.

How does carbon dioxide affect the Earth's climate?

Question 17 options:

Carbon dioxide is being added to the soil, which causes weather phenomenon.

Carbon dioxide mixes with water vapor to take harmful chemicals out of the air.

While carbon dioxide is in the air waiting to be reabsorbed it traps the sun's heat.

Answers

Answer:

While carbon dioxide is in the air waiting to be reabsorbed it traps the sun's heat.

5. The excited players celebrated because they won the game. 6. Everyone at the birthday party ate the delicious birthday cake.

Answers

Answer:

5. The excited players celebrated because they won the game. 6. Everyone at the birthday party ate the delicious birthday cake is the question

Explanation:

What happens to the freezing temperature of a solvent when a
solute is dissolved into it?
a It is unaffected.
b It increases
Clt decreases.
d It either increases or decreases

Answers

Answer:it decreases

Explanation:

Bile salts play a crucial role in gastrointestinal homeostasis and digestion. Which phrase is the BEST description of the gastrointestinal function of bile salts?

Answers

Answer:

bile salts emulsify fats and break them down into smaller particles which gives the enzyme lipase a greater surface area to act on during digestion of fats.

Explanation:

A sample of hydrogen exerts a pressure of 0.429 atm at 50.00°C. The gas is heated to
95.00°C at a constant volume. What will its new pressure be?

Answers

Answer:

5.847atm

Explanation:

according to Gay- Lussac's law

P1/T1 =P2/ T2

Girls are usually completely physically mature by _____ years old. A. 17 B. 19 C. 14 D. 21.

Answers

Girls are usually completely physically mature by 17 years old
So, A

Answer:

A. 17

Explanation:

Took the test on Edge & got 100% :D

[WILL MARK BRAINLIEST!!] Describe the relationship between molecular structure and the strength of electrostatic
forces between molecules. How does this impact boiling and melting points?

Answers

Answer:

increase the bonding strength between two or more molecules

hope this help

Explanation:

Boiling points and melting points

The overarching principle involved is simple: the stronger the noncovalent interactions between molecules, the more energy that is required, in the form of heat, to break them apart. Higher melting and boiling points signify stronger noncovalent intermolecular forces.

Copper(I) nitrate, CuNO3, is dissolved in water and forms a transparent, blue mixture. What type of mixture is it

Answers

When a element gets dissolved in water like sugar and water it is: (aq)= Aqueous (dissolved)

Radiant energy is emitted from all objects with temperatures greater than ____________. This means ____________ objects emit radiant energy.

Answers

Radiant energy is emitted from all objects with temperatures greater than ABSOLUTE ZERO. This means ALL objects emit radiant energy.

Radiant Heat and Temperature

Radiant heat is a type of energy that largely depends on the temperature of an object.

This type of energy (radiant energy) is emitted from all objects and can be observed when heat is absorbed on the surface of another material.

Radiant energy can be defined as a type of electromagnetic energy.

Learn more about radiant energy here:

https://brainly.com/question/637839

does this image show a physical or chemical change?

Answers

Answer:

Physical

Explanation:

When a substance changes from liquid to gas it's a physical change. There is no chemical reaction between the rubbing alcohol or anything else that would change it's chemical composition.

This is a physical chance

Elements on the right side of the periodic table are called.

Answers

Answer:

Nonmetals is the answer!

Hope this helped!

Answer:

NONMETALS. :)

Explanation:

im in sixth btw.

Select the correct answer. Which statement about cellulose is true? A. It’s a synthetic polymer. B. It’s a raw material used to make plastic. C. It’s produced using oil and gas. D. It’s used to make paper products.

Answers

Answer:

It's used to make paper.

Explanation:

Plato answer.

What must occur before a newly made polypeptide is secreted from a cell?.

Answers

Answer: Your answer is Its signal sequence must target it to the ER, after which it goes to the Golgi.

Hope this helps!

What color of light is emitted from an excited hydrogen atom where the electron has been promoted to n

Answers

Answer:

n1 = 2, n2 = 4

1/wavelength = 1.097*10^7[1/2^2 — 1/4^2]

1/wavelength =0.20568*10^7

wavelength = 486.192*10^-9 Or

wavelength = 486.19 nm (blue color)

Explanation:

I just answered this in class

What is the molecular formula for a compound that is 46.16% carbon, 5.16% hydrogen and 48.68% fluorine if the molar mass of this compound is 156.12 g?

C6H8F4

C5H10F5

C6H6F3

Answers

Hope this can help u

How many grams of sodium hydroxide needed to be obtained in order to get 1.7 x 1024 molecules NaOH?

Answers

Answer:

n order to get that molecule you hgave to go into atoms like the skin of of it.... I'm just trying to sound smartI

Explanation:

What are two basic categories of matter

Answers

Liquid
Solid
And Gas (just incase you need it)

According to the Law of Conservation of Matter, what happens to atoms of gas in a balloon when it is placed in the freezer?

the number of atoms stays the same and the energy stays the same, keeping the volume the same

the number of atoms stays the same as the atoms lose energy to the colder freezer, slow down, get closer together, shrinking the volume

the number of atoms increases, causing an increase in energy and an increase in volume

the number of atoms decreases, which takes up less space and decreases the volume

Answers

Answer:

the number of atoms stays the same as the atoms lose energy to the colder freezer, slow down, get closer together, shrinking the volume

Explanation:

When a liquid is cooled, the average energy of the molecules decreases. At some point, the amount of heat removed is great enough that the attractive forces between molecules draw the molecules close together, and the liquid freezes to a solid.

I hope it helps.

Which statement best describes the characteristics of the Sun?
Red in color
at the center of our galaxy
Hotter than most stars
medium in size

Answers

Medium in size is your answer

What does an electrically neutral atom have the same number of?

protons and electrons

protons and neutrons

electrons and neutrons

protons, electrons, and neutrons

Answers

Answer:

it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons).

Explanation:

So in all of the answers it would be A. Protons and Electrons

Other Questions

Why did Suleiman allow non-Muslims to live in their own communities?to better understand their religions to keep them away from the city center to reduce the possibility of conflict to make their population seem smallerOne choice question please hurry also if u can answer this I have another one that's unaswered and I'd love it if u could help me please Which symptoms are negative effects of performance drugs? Check all that apply plz help me please please please please please WILL GIVE BRAINLIEST AND 15 POINTS! Which of the following is true about alcohol-attributable deaths?Most deaths are from alcoholic liver disease.Most deaths are from chronic causes.No choice is correctMost deaths are from acute causes.(ANSWER QUICKLY) Art Text QuestionsQuestion one: There were seven elements of the design listed in the unit. Please name five of them, and give a short description of each.Answer: line, shape, space, value, form, texture, and color.Line: I thin or thick drawn/made considered a moving point in space, It is one-dimensional and can vary in width, direction, and length.Shape: a two-dimensional form tends to be colored or circled/linedSpace: the feeling of depth or three dimensions theres a positive and negative space, Positive space is filled in or used to be a part of the drawing, the negative can be the empty space in the paintingValue: it sometimes light and dark colors it is used a scale at times and used to make high or low contrastForm: has a physical being and the other could be like a message from an image,Textures: surface quality, there are real and actual textures, some textures aren't as they seem or made something created to look like something it is notColor: the element of artQuestion two: There were also seven principles of the design listed in the unit. List five of the principles of design and explain what each means. Answer: Emphasis, contrast, balance, pattern, and rhythm.Emphasis: The principle of art that helps the audience put the story of a painting together in their own minds. Any object or area of emphasis is called a focal point.Contrast: The arrangement of opposite elements and effects. For example, light and dark colors, smooth and rough textures, large and small shapes.Balance: The distribution of the visual weight of objects, colors, texture, and space.Pattern: A design in which lines, shapes, forms, or colors are repeated.Rhythm: The principle of design that suggests movement or action.Question three: There are three different ways that balance is used. Please list the three different ways and explain what each means.Answer: Symmetrical, asymmetrical, and radialBalance is the principle of design that teaches the work of art should be in harmony, and that its sides weigh the same so that it doesnt look uneven. The three types of balance are symmetrical, asymmetrical, and radial.Symmetrical balance means the two parts of the art are identical. If we were to separate the picture or art piece in the middle, the two sides would be equal, presenting the same elements and weighing the same.An asymmetrical balance occurs when the two parts of the painting or work of art are not the same, yet they weigh the same. They are in harmony, but they have different components. For example, maybe one side presents larger elements, but the other side has brighter colors, so there is no tension, and the observer sees composure on the piece.Radial balance is presented as elements gathered around the joined center. They can go towards it, or from it, but they seem as if to radiate from the same point.Question four: In the unit, elements of content were discussed. There were four elements of content listed; please name all four and write one sentence explaining each?Answer: line, shape, form, and textureLine: Lines, a line is the starting point of every artist's artwork, the line could either be broken, jagged, vertical, horizontal, or diagonal, so basically, a line is the start of the art.Shape: A shape is anything with edges or is surrounded by an outline, a shape can be anything, but it just has to all end and connect at a certain point to make it a certain shape you want, or you can make your own shape!Form; Form, a for is a shape but shaped differently, if you were to make a 3d art like a cube, that is a form of shape that is not 2d but 3d, a form can be viewed differently from an angle.Texture: Texture is the way it feels when you touch an artwork, for example, if you were to make a rocky mountain artwork, then you would choose a more rough medium for the rocky mountain part, and maybe a softer one for grass or moss.Question five: In the unit, we learned about value scales. If you were going to make your own value scale, how would you do it? Please list the steps that you would take and what kinds of materials you would need to make a value scale.Answer: How to make a value scale? Or what materials would you use to make it? Well, Im am going to tell you!Step one: First I draw out a rectangle and draw nine lines in it (basically making it into nine squares).Step two: now I get either a pencil or some black and white paintStep three: Then I would use the pencil to push it hard against the paper on the last box to the right to make it black, then I would make the ones to the left ligj=hter and lighter and the last box to the left would be blank representing it is white.Step three (again?): If I was to use the paint, then I would use the black paint and paint the last box to the right black, then I would mix white with black more and more until I paint in the last box to the left white.I will add the rest of my answer soon! Hall, a divorced person and custodian of her 12-year-old child, filed her 2021 federal income tax return as head of a household. She submitted the following information to the CPA who prepared her 2021 return: The divorce agreement, executed in 2016, provides for Hall to receive $3,000 per month, of which $600 is designated as child support. After the child reaches 18, the monthly payments are to be reduced to $2,400 and are to continue until remarriage or death. However, for the year 2021, Hall received a total of only $5,000 from her former husband. Hall paid an attorney $2,000 in 2021 in a suit to collect the alimony owed. In June 2017, Hall's mother gifted her 100 shares of a listed stock. The donor's basis for this stock, which she bought in 1985, was $4,000, and market value on the date of the gift was $3,000. Hall sold her stock in July 2017 for $3,500. The donor paid no gift tax.During 2017, Hall spent a total of $1,000 for state lottery tickets. Her lottery winnings in 2017 totaled $200.Hall earned a salary of $25,000 in 2017. Hall was not covered by any type of retirement plan, but contributed $2,000 to an IRA in 2017.In 2017, Hall sold an antique that she bought in 1995 to display in her home. Hall paid $800 for the antique and sold it for $1,400, using the proceeds to pay a courtordered judgment.Hall paid the following expenses in 2017 pertaining to the home that she owns: realty taxes, $3,400; mortgage interest, $7,000; casualty insurance, $490; assessment by city for construction of a sewer system, $910; interest of $1,000 on a personal, unsecured bank loan, the proceeds of which were used for home improvements. Hall does not rent out any portion of the home. Hall's $2,000 contribution to an IRA should be treated asa. A deduction from adjusted gross income not subject to the 2% of adjusted gross income floor.b. A deduction from adjusted gross income subject to the 2% of adjusted gross income floor.c. An adjustment to income in arriving at adjusted gross income.d. Non-deductible, with the interest income on the $2,000 to be deferred until withdrawal. If 600 people submitted the survey above, how many were in the 21-30 year old group? A) 112 B) 122 C) 132 D) 142 A town is designing a rectangular park that will be 600 feet wide by 1000 feet long. On a scale drawing, the dimensions of the park are 12 inches wide by 20 inches long. A rectangular area of the park for swing sets is 0. 5 inch wide by 2 inches long on the scale drawing. What is the actual length of the swing set area of the park? Enter your answer in the box. The actual length of the swing set area of the park is feet. What examples of figurative language does Frost use in "The Road Not Taken"? How do these help shape the deeper meaning of the poem? HELPPPPPPPPPPPPHHHHHHH what is the eightfold path The combination of dna and proteins that forms visible chromosomes during cell division is called. After an investigation, Kuri determines that her hypothesis was wrong. What is the best thing for Kuri to do next? propose a scientific theory that explains what went wrong write a new hypothesis and conduct new experiments to explore the matter rewrite a scientific law to better predict the observations she gathered move on to a different topic because there is no value in a wrong hypothesis. A keyboard would be considered what 2 things A display case of wallets are marked 32 for $5. If Tim has $80, how many wallets can Tim get? (Assume no tax or other fees.)A. 512B. 2560C. 13D. 2 EnglishvJayciSontext section forAccording to O*NET, what are common work contextsfor Chefs and Head Cooks? Check all that apply.toward the top, and-d the bottom.o spend time keeping or regaining balanceimportance of being exact or accurateexposed to high placeso spend time standingresponsibility for outcomes and resultsresponsible for others' health and safety Two point charges are 4 cm apart. They are moved to a new separation of 8 cm. By what factor does the resulting mutual force between them change?. rather than spending $100 on paint today, you decide to save the money until next year, at which point you will use it to paint your room. If the can of paint costs $10 today, how many cans will you be able to buy next year if the nominal interest rate is 21 percent and the expected inflation rate is 10 percent Solve by elimination: 4x+2y=8 8x+4y=16