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If the colored spheres represent different solute particles, based on the principles of osmosis, in which overall direction is water (not pictured) most likely to move?
A.
Water will move into the cell.
B.
Water will not move into or out of the cell.
C.
Water will move into and out of the cell equally.
D.
Water will move out of the cell.
Answers
Water will move into the cell because of lower concentration of water inside the cell as compared to outside.
Why water moves inside or outside of the cell?Water has a tendency to move across a membrane from a lower osmolarity to a higher osmolarity which means from higher concentration region to the lower concentrated region.
So we can conclude that water will move into the cell due to lower concentration of water inside the cell as compared to outside.
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Answer:
If you're from study island, the answer is D. Water will move out of the cell.
Explanation:
I got it on study island and this was right.
Related Questions
Why does the entropy of a gas increase when it expands into a vacuum?.
Answers
Answer:
When a gas expands into a vacuum, its entropy increases because the increased volume allows for greater atomic or molecular disorder. The greater the number of atoms or molecules in the gas, the greater the disorder.
Explanation:
Microwaves make _________ get hot. They make water molecules _______ against each other. The water molecules turn into ___________ and _____________ the popcorn.
please help
Answers
Answer:
food , push , gas , pop
Explanation:
A(n) reaction is a self-sustaining series of chemical reactions in which the products of one reaction are the reactants in the next reaction.
Answers
The reaction which is a self-sustaining series of chemical reactions in which the products of one reaction are the reactants in the next reaction is chain reactions.
What are reactants and products?Reactants are those species which are present at the initial state of the reaction and at the end of the reaction we obtain products.
If in any chemical reactions, reactants are combined for the formation of products and for the further process obtained product will act as reactant and that chemical reactions are known as chain reactions. Because this process continues for long time.
Hence correct option is chain reactions.
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Answer:
chain
Explanation:
edge 2023
3. describe natural sources of radiation. infer some of the dangers that radiation can impose.
Answers
Answer:
All of us are exposed to radiation every day, from natural sources such as minerals in the ground, and man-made sources such as medical x-rays. According to the National Council on Radiation Protection and Measurements (NCRP), the average annual radiation dose per person in the U.S. is 6.2 millisieverts (620 millirem).
Explanation:
Flammable liquids are those that have a flashpoint of:.
Answers
Answer:
Flammable liquid is any liquid having a flashpoint at or below 199.4 °F (93 °C).
Explanation:
:)
Flashpoints for flammable liquids are at 100°F. Lower flash points allow for easier ignition of liquids. A liquid's flash point is the lowest temperature at which a concentrated enough layer of vapor accumulates on top of its surface to allow for ignition.
A liquid that is flammable has a flash point* below 37.8 ° C (100 ° F). A flammable liquid has a flash point that ranges from 37.8 to 93.3° C (100 to 200° F), which is above the standard working temperature. Flammable liquids emit a vapor that, at standard working temperatures, is easily ignitable.
The substance ignites more readily the lower the flash point. For instance, petrol is more flammable than ethylene glycol and has a flash point of about -40 degrees C (-40 °F).
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Silver + ... → Silver oxide
Answers
Answer:
Silver+ Hydroxide--> Silver oxide+ Water
What is the [H+] in a solution with a pH of 9.92
A) 1.2x10^-10 M
B) 9.9x10^-7 M
C) 4.9x10^-5 M
D) 1.1x10^-9 M
Answers
Answer:
Total flow: = 1000 cfm = 4.7 x 10 ml/sec. Stack Ht.: 2.7m (9 ft) ... 1.2x10-8. 6.4x10 7. C-14. 4.3x10 7. 1.0x10 5. 2.0x10 8. 1.1x10-8. Na-22. 1.3x1i dont know how to explain it
The concentration of A is initially 0.150 M before it proceeds to equilibrium. The system is at 298 K. What is the equilibrium concentration of B
Answers
For a concentration of is initially 0.150 M before it proceeds to equilibrium, the equilibrium concentration of B is mathematically given as
x=3.0*10^{-7}m
What is the equilibrium concentration of B?Generally, the equation for the change in Gibbs free energy is mathematically given as
dG=-RTInK
Therefore
31.5*10*^{3}=-(8.314)(298)(ink)
K=3*10^(-6)
Eqution
A--->B
K=x/0.1-x
x=3.0*10^{-7}m
In conclusion, the equilibrium concentration
x=3.0*10^{-7}m
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A mixture of three gases (N2, Ar, and O2) at 2.6 atm is found to contain 23% N2 and 3.0% Ar by mass. What is the partial pressure of O2
Answers
Given that the mixture of the three gases has a pressure of 2.6 atm, the partial pressure of O₂ is 1.924 atm
Dalton's law of partial pressureThis law states that at contact temperature, the total pressure of a mixture of gases is equal to the sum of the partial pressure exerted by each gas. Mathematically, it is expressed as
Total pressure = partial pressure of A + partial pressure of B
How to determine the partial pressure of O₂Percentage of N₂ = 23%Percentage of Ar = 3%Percentage of O₂ = 100 – (23 + 3) = 74%Total pressure = 2.6 atmPartial pressure of O₂ =?Partial pressure of O₂ = (percentage of O₂) × total pressure
Partial pressure of O₂ = 74% × 2.6
Partial pressure of O₂ = 0.74 × 2.6
Partial pressure of O₂ = 1.924 atm
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the reaction between calcium carbonate and hydrochloric acid which two of the products contain oxygen
Answers
Calcium carbonate (CaCO3) is a metal carbonate compound and reacts with hydrochloric acid (HCl) to produce carbon dioxide (CO2), calcium chloride (CaCl2) and water. You can see, carbon dioxide gas is released through the solution.
calcium carbonate and hydrochloric acid reaction
CaCO3 + HCl → CaCl2 + CO2 + H2O
what are two transition metals in the periodic table?
Answers
Answer:
two transitions elements are iron and cobalt
Which of the following is the molecule with the highest number of covalent bonds?
1. O2
2. N2
3. NH3
4. CO2
Answers
Answer:
N2 and NH3 both have 3 so try one of those ones
Which sequence of coal rank is ordered from lowest to highest, based on the amount of organic carbon contained within:
Answers
The sequence of coal from lowest to highest based on organic carbon contained within is peat, lignite, sub-bituminous, bituminous, anthracite.
What is Coal?This is a fossil fuel which is usually black in color and a combustible sedimentary rock.
There are different types of coal with the amount of organic carbon contained within from lowest to highest being shown above.
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How many liters of 1.0 M NaCl solution are needed to react with 5 M of the solute
Answers
That should be 5mols of solute
Now
Let that volume be V
Molarity=Moles of solute/Volume in L1M=5/VV=5LWhat is a technique for gene therapy?
Answers
Answer:
For gene therapy, stem cells can be trained in a lab to become cells that can help fight disease. Liposomes. These fatty particles have the ability to carry the new, therapeutic genes to the target cells and pass the genes into your cells' DNA.
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Which of these potential sources of water pollution is excluded from the clean water act
Answers
Answer:
C. Agricultural runoff
Explanation:
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How are dams and levees alike?
Answers
Answer:
they are bigg has water in then and they a deep
what is the pH of 3.65 grams of HCl dissolved in 1250 mL distilled H2O
Answers
Considering the definition of pH, the pH of 3.65 grams of HCl dissolved in 1250 mL distilled H₂O is 1.0969.
Definition of pHpH is the Hydrogen Potential. It is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.
Mathematically, pH is calculated as the negative base 10 logarithm of the activity of hydrogen ions:
pH= - log [H⁺]
The numerical scale that measures the pH of substances includes the numbers from 0 to 14. The pH value 7 corresponds to neutral substances. Acidic substances are those with a pH lower than 7, while basic substances have a pH higher than 7.
Concentration of HClMolar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.
The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:
[tex]Molarity=\frac{number of moles}{volume}[/tex]
In this case, you know:
number of moles=[tex]3.65 grams x\frac{1 mole}{36.45 grams} =[/tex] 0.1 moles (being 36.45 g/mole the molar mass of HCl)volume= 1250 mL= 1.250 L (being 1000 mL= 1 L)Replacing in the definition of molarity:
[tex]Molarity=\frac{0.1 moles}{1.250 L}[/tex]
Solving:
Molarity= 0.08 [tex]\frac{moles}{liter}[/tex]= 0.08 M
pH of the solutionHydrochloric acid is a strong acid, so in aqueous solution it will be totally dissociated. So the concentration of protons is equal to the initial concentration of acid. This is: [H⁺]= [HCl]= 0.08 M
Replacing in the definition of pH:
pH= - log (0.08 M)
Solving:
pH= 1.0969
Finally, the pH of 3.65 grams of HCl dissolved in 1250 mL distilled H₂O is 1.0969.
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pH:
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molarity:
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What is the density of a substance with a volume of 5.0 mL and a mass of 15.0g?
A.) .33 g/mL
B.) 3.0 g/mL
C.) 10.0 g/mL
D.) 20.0 g/mL
Answers
Answer:
B) 3.0 g/mL
Explanation:
density formula: mass/volume
15/5=3
Type of force when you open the door. *
1 point
A. applied force
B. friction
C. gravity
D. magnetism
Answers
A. applied force
force applied to an object
Answer:
A. Applied force
Explanation:
A. should be the answer because you applied force onto an object to make it move or do what you’d like.
I hope it helps! Have a great day!
Muffin~
How is permeability related to the size of the grains that make up the sediment?
Answers
Answer:
In poorly sorted sediments, those with a larger range of grain sizes, the finer grains tend to fill the spaces between the larger grains, resulting in lower porosity. Primary porosity can range from less than one percent in crystalline rocks like granite to over 55% in some soils.
Explanation:
Name and title:include your name, instructor's name, date, and name of lab.objectives(s):in your own words, what is the purpose of this lab?hypothesis:in this section, please include the if/then statements you developed during your lab activity. these statements reflect your predicted outcomes for the experiment.if the mass of the sun is 1x, at least one planet will fall into the habitable zone if i place a planet in orbits___, ____, ____, and ____, and all planets will orbit the sun successfully.if the mass of the sun is 2x, at least one planet will fall into the habitable zone if i place a planet in orbits___, ____, ____, and ____, and all planets will orbit the sun successfully.if the mass of the sun is 3x, at least one planet will fall into the habitable zone if i place a planet in orbits___, ____, ____, and ____, and all planets will orbit the sun successfully.procedure:the materials and procedures are listed in your virtual lab. you do not need to repeat them here. however, you should note if you experienced any errors or other factors that might affect your outcome.using the summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.data:record your observation statements from space academy.when the mass of the sun is larger, earth moves around the sun at a ______ (faster, slower) pace.when the mass of the sun is smaller, earth moves around the sun at a ______ (faster, slower) pace.when earth is closer to the sun, its orbit becomes _____ (faster, slower).when earth is farther from the sun, its orbit becomes _____ (faster, slower).for each trial, record the orbit number of each planet from the sun. be sure to indicate the number of planets in the habitable zone after each trial. create a different configuration of planets for each trial. an example has been supplied for you. orbit numberplanet one orbit numberplanet two orbit numberplanet three orbit numberplanet four number of planets in the habitable zone number of planets left in successful orbitexample: sun's mass 1x 135612sun's mass 1x—trial one sun's mass 1x—trial two sun's mass 2x—trial one sun's mass 2x—trial two sun's mass 3x—trial one sun's mass 3x—trial two conclusion:your conclusion will include a summary of the lab results and an interpretation of the results. please answer all questions in complete sentences using your own words.using two to three sentences, summarize what you investigated and observed in this lab.you completed three terra forming trials. describe the how the sun's mass affects planets in a solar system. use data you recorded to support your conclusions.in this simulation, the masses of the planets were all the same. do you think if the masses of the planets were different, it would affect the results? why or why not?how does this simulation demonstrate the law of universal gravitation?it is the year 2085, and the world population has grown at an alarming rate. as a space explorer, you have been sent on a terraforming mission into space. your mission to search for a habitable planet for humans to colonize in addition to planet earth. you found a planet you believe would be habitable, and now need to report back your findings. describe the new planet, and why it would be perfect for maintaining human life.
Answers
If the mass of the sun is 1x, at least one planet will fall into the habitable zone if I place a planet in orbits 2, 6, and 75, and all planets will orbit the sun successfully.
If the mass of the sun is 2x, at least one planet will fall into the habitable zone if I place a planet in orbits 84 , 1, and 5, and all planets will orbit the sun successfully.
If the mass of the sun is 3x, at least one planet will fall into the habitable zone if I place a planet in orbits 672 and 7, and all planets will orbit the sun successfully.
When the mass of the sun is larger, Earth moves around the sun at a faster pace.When the mass of the sun is smaller, Earth moves around the sun at a slower pace.When Earth is closer to the sun, its orbit becomes faster.When Earth is farther from the sun, its orbit becomes slower.What would occur if the Earth was closer to the sun?When Earth is closer to the sun, there will be hotter climate. A little movement that takes one closer to the sun could lead to a huge impact.
Due to the fact that there is warming that can make the glaciers to melt, there is an increase in the sea levels and flooding occurs in a lot of areas of the planet and when there is no land to absorb some of the sun's heat, the temperatures on Earth would tend to rise more.
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In this performance task, students will analyze nutrition labels of some of
the foods and drinks that they recently consumed. They will identify which type of
macromolecule (carbohydrates, lipids, proteins) is mainly supplied by the item and they will
compare their consumption with the daily recommended intake for that type of
macromolecule. Students will also investigate salt and added sugar as well as vitamins and
minerals in the item. Finally, students will attach the nutritional labels in a short bond paper.
Answers
Explanation:
Globalization is the word used to describe the growing interdependence of the world's economies, cultures, and populations, brought about by cross-border trade in goods and services, technology, and flows of investment, people, and information
Can grasshoppers fly?
Answers
Answer:
Yes, because they have strong wings..
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Bromthymol blue is an acid-base indicator that changes color around pH 7. Adding a small amount of bromthymol blue to a basic solution would be most helpful in _____.
A. determining the identity of the base in the solution
B. tracking the pH as the solution is gradually acidified
C. precisely measuring the pH of the solution
D. calculating the concentration of the base in the solution
Answers
Answer:
B) tracking the pH as the solution is gradually acidified
Explanation:
Got it right on the quiz!
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Answer:
B. tracking the pH as the solution is gradually acidified
You are a NASA engineer. You are the chief engineer for the Apollo 13 mission to the moon. The astronauts are running out of oxygen and need to get rid of the excess carbon dioxide. You know that sodium hydroxide (NaOH) has been suggested as a means of removing carbon dioxide from the spacecraft cabin. The filter which they had been using is fully saturated and no longer works. You remember that the astronauts have a 5000. g container of sodium hydroxide on the ship. You also know that sodium hydroxide can be used to remove carbon dioxide.
Use the following reaction: NaOH + CO2 → Na2CO3 + H2O
The astronauts have 2 days left before they land on Earth. You know that there are three astronauts, and each astronaut emits roughly 500. g Of carbon dioxide each day. Is there enough sodium hydroxide in the cabin to cleanse the cabin air of the carbon dioxide, or are the astronauts doomed? SHOW ALL YOUR WORK - DON’T FORGET TO BALANCE THE EQUATION
Guiding Questions: How many grams of CO2 are produced in a day? How many grams of CO2 are produced in both days? How many grams of NaOH do you need to get rid of 3000 g of CO2?
Answers
Answer:
We know that there are three astronauts and each one of them emits 500 grams of carbon dioxide each day, so the total carbon dioxide emitted each day.
Explanation:
From the mole ratio of the reaction, there is not enough sodium hydroxide in the cabin to cleanse the cabin air of the carbon
What was of Sodium hydroxide is required?The mass of sodium hydroxide required depends on the mass of CO2 produced by the astronauts.
The mass of CO2 produced by the astronauts is calculated as follows;
Mass of CO2 produced = 3 × 2 × 500 g = 3000 g of CO2
The mass of sodium hydroxide required is calculatedfrom the eqaution of the reaction given below:
[tex]2NaOH + CO_2 → Na_2CO_3 + H_2O \\ [/tex]2 moles of sodium hydroxide reacts with 1 mole of CO2
Molar mass of NaOH = 40 g/mol
Molar mass of CO2 = 44 g/mol
Mass of sodium hydroxide required = 3000 g × 2 × 40/44 = 5454.54 g
Therefore, there is not enough sodium hydroxide in the cabin to cleanse the cabin air of the carbon.
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What is a DNA fingerprint and why is it considered individual evidence?
Answers
Answer:
DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation.
A DNA sample taken from a crime scene is compared with a DNA sample from a suspect. If the two DNA profiles are a match, then the evidence came from that suspect.
Consider the following reactions Ca(OH)2 + 2NH4Cl - Cacl2 + 2H₂O + 2NH2 a) how many grams of cacl2 will be formed from the if . 1)40 gram of nh4cl?
Answers
Answer:
41.495
Explanation:
107 gm of 2NH4Cl gives 111 gm of CaCl2
40 gm of 2 NH4Cl gives =(111*40)/107
=41.495 gm of CaCl2
What role does sulfuric acid play in the fischer esterification?.
Answers
Answer:
It plays the role of a catalyst.
If you dissolve 8 grams NaOH in 0.1L of water what is the molarity of NaOH is solution? how many miles per liter do you have
Answers
Answer:
2 mol/L
Explanation:
molarity = moles/litres
NaOH = 23 + 16 + 1 = 40 g/mol
[tex] ? \: mol \: naoh \: = 8 \: g \: naoh \: \times \\ \frac{1 \: mol \: naoh}{40 \: g \: naoh} = 0.2 \: mol \: naoh[/tex]
molarity = 0.2 mol/0.1 L = 2 mol/L