Chemistry High School

A tea bag in a cup of hot water can be a simple model of a cell. Water moves into the tea bag and substances in the tea leaves move out through a thin layer of material. What does the thin material that holds the tea leaves represent? ​

Answers

Answer 1

Answer:

It represents a  partially permeable membrane

Explanation:

As the water is added to the teabag it causes the tea leaves to move and triggers diffusion of the leaves. ... The addition of heat (from the hot water) to the tea bag causes its molecules to move much faster than at room temperature

Answer 2

Answer:

The cell membrane

Explanation:

I checked it and it’s right on A P E X. I hope this helps!!

Proof:

A Tea Bag In A Cup Of Hot Water Can Be A Simple Model Of A Cell. Water Moves Into The Tea Bag And Substances
A Tea Bag In A Cup Of Hot Water Can Be A Simple Model Of A Cell. Water Moves Into The Tea Bag And Substances

Related Questions

Does Lewis structure show all electrons in an atom?

Answers

Answer:

No. It only shows valence electrons.

Answer:

A Lewis Structure is a very simplified representation of the valence shell electrons in a molecule. It is used to show how the electrons are arranged around individual atoms in a molecule. Electrons are shown as "dots" or for bonding electrons as a line between the two atoms

V=5, M=10 What is the density?

Answers

Answer:

the answer to this question is  2 kilogram/cubic meter

Explanation:

A household variety of coal is
1 point
Peat coal
Lignite coal
Bituminous coal
Anthracite coal

Answers

Answer:

Anthracite coal

Explanation:

Anthracite coal has highest amount of carbon and has clean burning properties. So, it is used as a household coal.

what movie do they say rest in peace when somebody was going to sleep

Answers

Answer:

It is from the movie "Till death do us part" released in 2017 on September 29th about a worrisome couple named Michael and Madison Roland. They planned to spend the rest of their lives together, but Michael's controlling ways turn their perfect marriage into an abusive roller-coaster ride that no woman could survive. With the help of her best friend, Madison decides to get away. After adopting a new identity, she meets Alex Stone and learns to love again. All seems well until Michael discovers Madison's whereabouts and re-creates her nightmare.

Explanation:

(Heyy remember me? lol)

9. Where does UV light
come from?

Answers

Answer:

the sun

Explanation:

can i have brainliest also have a good day

is a compound is made different of
atoms?

Answers

Answer:

Yes.A compound is a molecule made of atoms from different elements. All compounds are molecules, but not all molecules are compounds. Hydrogen gas (H2) is a molecule, but not a compound because it is made of only one element.

Are thermoplastics conductors of electricity?

Answers

Answer:

no it is not conductor of electricity

Explanation:

because thermoplastics made bad conductor of

electricity so, it is a insulator and not flow electricity

Around 1910, Rutherford bombarded gold foil with alpha particles. Most of the alpha particles passed straight through. To his surprise, a smaller number were deflected by 180°.
This summary recounts the scientific discovery of

something that absorbs alpha particles.
something that allows alpha particles through.
something that deflects alpha particles.
something that attracts alpha particles.

Answers

Answer:

something that deflects the Alpha particles

sodium benzoate on the periodic table

Answers

Answer:

[tex]na {}^{11} 22.99[/tex]

Explanation:

oof

Which event is an example of melting?
A. Wet clothes are drying on a clothesline.
B. The outside of a glass of ice water becomes moist.
C. Water drips from an icicle on the edge of a roof.
D. Fog forms in a valley.
SUBMIT

Answers

Answer:

C is your correct answer

Answer:

C. Water drips from an icicle on the edge of a roof.

Explanation:

Water dripping form an icicle on the edge of a roof is a clear cut example of melting event.

Melting is a phase change from solid to liquid. It usually occurs when the solid body gains more thermal energy.

Icicles are frozen water; They have a solid stateWhen this ice body melts, drips of water begins to form. We term this melting.

what do guys like in a girl. whats ur type or like whats usually a guys type :)

Answers

Well, Some go for looks and some go's for the mind- I perfer the mind, Because I rather have a girl that isn't pretty and has a great personality. My type would be dirty blonde/brown hair, who is really smart but shy -N/A

Cindy has lost her cell phone. She looks around everywhere and cannot find it. She decides to go to her mom and ask her to call her phone. Her mom calls it and it rings, allowing Cindy to find her phone. What type of electromagnetic wave is being used to communicate to Cindy's phone? O Visible Light O Gamma Ray O Microwave O Radio Wave​

Answers

Answer:

Radio wave

Explanation:

The sound is radio waves that let Cindy find her phone.

At a pressure of 505 kPa, the volume of a gas is 12.00 mL. Assuming the temperature remains constant,
at what pressure will the new volume be 8.00 mL?

Answers

Answer:

757.5 kPa

Explanation:

Boyle's law states that p1 * v1 = p2 * v2

v1 = 12 mL

v2 = 8 mL

p1 = 505 kPA

p2 = ?

(505)(12) = (p2)(8)

6060 = (p2)(8)

p2 = 757.5

The amount of oxygen in the reactants is 4 atoms. In the products, the oxygen is distributed to water (H2O) and 02
gas. Which coefficients would be placed in front of water and oxygen?
O2 in front of water and 2 in front of oxygen
O 1 in front of water and 2 in front of oxygen
1 in front of water and 1 in front of oxygen
2 in front of water and 1 in front of oxygen

Answers

Answer: 2 in front of water and 1 in front of oxygen

Answer:

Your answer is D

Explanation: I'm sorry I'm late but the answer is correct


Which waves have some electrical properties and some magnetic properties?
a. longitudinal waves
b. transverse waves
c. mechanical waves
d. electromagnetic waves

Answers

d. electro magnetic waves. it’s literally in the name

The waves which have some electrical properties, and some magnetic properties are called as electromagnetic waves. The correct answer is option d.

Electromagnetic waves are a type of wave that consists of both electric and magnetic fields oscillating perpendicular to each other and to the direction of wave propagation.

They do not require any medium to propagate and they can travel through a vacuum. These waves include radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.

Therefore, option d. electromagnetic waves have some electrical properties and some magnetic properties.

Learn more about Electromagnetic waves here:

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give me the five examples of kinetic
energy

​

Answers

Answer:

The answer to your question is

*( Flying AirplaneWalking & RunningCyclingRollercoastersHydro-Power Plants )*

How many electrons are present in S2-

Answers

Answer:

18 Electrons...

kid

Explanation:

Answer:

S2- refers to the sulfur ion that carried a negative charge of two. This means that the sulfur atom gained two electrons in the process of becoming an ion, giving the atom a total of 18 electrons.

Explanation:

differentiate between short period and long period in modern periodic table​

Answers

The difference between short period and long period is based upon the number of elements in each period. Shortest period is the first period which contains elements, while the longest period is the 6th period which contains 32 elements.

Both these contain 18 elements each. The shortest period which contains two elements, while the longest period is the 6th period which contains 32 elements.

what element am i ? i have 74 protons ?

Answers

Answer:

Explanation: tungsten

The element with 74 protons is Tungsten, a chemical element.

The boiling point of water is 100.0*C, yet a student measured it to be 101.3*C. Calculate the percent error of the student's measurement.

Answers

Answer:

Percent error = 1.3%

Explanation:

Given data:

Actual value of boiling point = 100.0 °C

Measured value = 101.3 °C

Percent error = ?

Solution:

Formula:

Percent error = ( Measured value - Actual value / Actual value ) × 100

Now we will put the values in formula.

Percent error =  101.3 °C - 100.0 °C / 100.0 °C × 100

Percent error =  1.3  °C / 100.0 °C × 100

Percent error =  0.013  × 100

Percent error = 1.3%

Thus, percent error is 1.3.

Water is put into a pot and then heated on a stove. It is then removed and allowed to cool to room temperature

Answers

Answer: here you go im pretty sure this is right i studied

Explanation:

Please help! Sulfur is element 16. How many dots would you have to show in the electron dot diagram for sulfur?

Answers

If you are using the Lewis Dot Structure, you would put 6 dots around the atom because Sulfur has 6 valence electrons.

why is powdered magnesium used in fireworks,
rather than magnesium ribbon?​

Answers

Answer:

Because it will give a faster reaction.

Explanation:

it is easier to mix with other chemicals and it gives an faster and easier reaction

which of the following is a pure substance choose all that apply
a}fruit juice
b}nickel
c}salt water
d}rust

Answers

Answer:

nickel and rust I think

Could y’all help me name the molecular shapes?

Answers

Explanation:

1) Carbon dioxide

2) methane

3) methanal

4) borane

5) Ozone

6) 1,1,1,1-tetrachloro methane

7) ammonia

8) water

Choose all that apply.
18. Which of the following are requirements for something to be a physical property?
A. The property can be observed without changing the identity of the substance.
B. The property depends on the amount of the substance present.
C. The state of the substance changes when you measure the property.
D. The property can be observed or measured.

Answers

A and D would be correct

The property can be observed without changing the identity of the substance. The property can be observed or measured these are requirements for something to be a physical property.

What is physical properties ?

Physical properties are properties of matter that can be seen and studied without influencing a sample's molecular structure. The arrangement of the material in a sample may change when a physical quality is evaluated, but the molecules' patterns are unchanged.

Melting point ,boiling point are the example of physical properties.

A property of matter that is autonomous to a change in its chemical components is termed a physical property. Density, color, hardness, melting and boiling points, and electrical conductivity are very few common examples of physical features.

Thus, option A and D are correct.

To learn more about physical properties follow the link;

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Pls help!
Is volume equal to mass over density?

Answers

density = mass/volume

volume= mass/density

Yes, you're correct.

Answer:

Volume isn't equal to mass.

Explanation: Mass is weight, volume is like how much something can hold.


Atoms contain nuclei with electrons orbiting

Answers

Answer:

please mark brainliest!

Explanation:

Atoms consist of a nucleus made of protons and neutrons orbited by electrons. Quarks came together to form protons and neutrons, and these particles combined into nuclei. This all took place within the first few minutes of the universe's existence, according to CERN.

What happens to the temperature of the water when it reaches its boiling point and begins to vaporize?

Answers

Answer:

Vapor pressure increases with temperature because molecular speeds are higher as temperature increases. Water boils at 100 °C because the vapor pressure exceeds atmospheric pressure at this temperature.

Explanation:

How many particles are present in this diagram?

Answers

There are 9 particles

Answer:

9 duh

Explanation:

Other Questions
5.16 An insulated container, filled with 10 kg of liquid water at 20 C, is fitted with a stirrer. The stirrer is made to turn by lowering a 25-kg object outside the container a distance of 10 m using a frictionless pulley system. The local acceleration of gravity is 9.7 m/s2. Assume that all work done by the object is transferred to the water and that the water is incompressible. A. Determine the work transfer (kJ) to the water. B. Determine the increase in internal energy (kJ) of the water. C. Determine the final temperature ( C) of the water. HINT: Assume that the temperature change is small enough that a constant value of the specific heat is a good approximation. D. Determine the heat transfer (kJ) from the water required to return the water to its initial temperature. Turns, Stephen R.. Thermodynamics (p. 294). Cambridge University Press. Kindle Edition. Mary is writing an article about the animal kingdom. She wants to place an image below the text. Which menu should Mary choose for this purpose? Determine the intercepts of the line X-intercept: (__ , __)Y-intercept: (__, __) Dacosta Corporation had only one job in process on May 1. The job had been charged with $2,400 of direct materials, $6,966 of direct labor, and $10,104 of manufacturing overhead cost. The company assigns overhead cost to jobs using the predetermined overhead rate of $19.60 per direct labor-hour. During May, the following activity was recorded: Raw materials (all direct materials): Beginning balance $ 9,100 Purchased during the month $ 38,600 Used in production $ 39,900 Labor: Direct labor-hours worked during the month 2,500 Direct labor cost incurred $ 25,110 Actual manufacturing overhead costs incurred $ 33,900 Inventories: Raw materials, May 30 ? Work in process, May 30 $ 17,093 Work in process inventory on May 30 contains $3,849 of direct labor cost. Raw materials consist solely of items that are classified as direct materials. The cost of goods manufactured for May was: above it says find the missing angle measurement. You have just moved into a new apartment and are trying to arrange your bedroom. You would like to move your dresser of weight 3,500 N across the carpet to a spot 5 m away on the opposite wall. Hoping to just slide your dresser easily across the floor, you do not empty your clothes out of the drawers before trying to move it. You push with all your might but cannot move the dresser before becoming completely exhausted. How much work do you do on the dresser? You have just moved into a new apartment and are trying to arrange your bedroom. You would like to move your dresser of weight 3,500 across the carpet to a spot 5 away on the opposite wall. Hoping to just slide your dresser easily across the floor, you do not empty your clothes out of the drawers before trying to move it. You push with all your might but cannot move the dresser before becoming completely exhausted. How much work do you do on the dresser? W>1.75104J W=1.75104J 1.75104J>W>0J W=0J Hello please help will give brainliest! Jocko works for IBM, a publicly traded company that sponsors a stock bonus plan. Which of the following statements is not correct regarding the plan? a. If the distribution of IBM stock is made to Jocko in installments over a two year period, then the fair market value of all employer securities distributed in the installment distribution will be taxable as ordinary income. b. Jocko is permitted to vote the shares of IBM within his account. c. Upon termination, Jocko must be given the right to receive IBM stock held in the plan as part of a distribution. d. If Jocko has less than three years of service, he is permitted to diversify one-half of company match contributions that consist of IBM stock. the cuticle is made of a waxy material. suggest an advantage to a plant of this feature What is a government?A. a small group of people that bosses people aroundB. a single individual that orders other people aroundC. a an organized body of people that make laws for a nationD. a building Jefferson delays mentioning the American colonies until late in the introduction. How does this delay affect his argument? Check the two best answers.It draws readers into the argument and establishes that ideas apply to society.It prevents readers from quickly losing sympathy for the Americans.It engages readers by creating a sense of mystery about the Americans.It emphasizes that the principles involved are universal, not just American. 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They thought that their ancestors had the power to help them I need help on this Which document was the first to guarantee citizens the right to bear arms?A.2nd Amendment to the United States ConstitutionB.The Articles of ConfederationC.The English Bill of RightsD.The Magna Carta SOMEONE PLEASE HELP ME IM STRUGGLING ON THIS PROBLEM 7 I NEED HELPPP Endpoint: (2,5) midpoint (3,4) Missing endpoint: