The diagram shows an experiment to investigate the products of burning a hydrocarbon molecule like candle wax. What are the condensed colourless drops formed called?
A. carbon dioxide
B. water
C. methane
D. oxygen
Ice has the density of 0.93 g/cm3, and water has a density of 1.0 g/cm3. Will ice float or sink in water?
Answer is ice will float on water as it is having lesser density than water .
As the object that is having low density will float on a substance that is having higher density. If we compare density of water and ice we will found that ice is having low density that is 0.93 g/cm3 and water is having high density that is 1.0 g/cm3. So as ice is having low density than water it will float on water.
What chemical changes were responsible for the color changes? (While doing a red cabbage juice lab and finding out if substances were acid,base, or neutral based on what color they turned)
The color changes in the red cabbage juice lab are the result of chemical changes caused by the reaction between the substances being tested and the acid-base indicators in the cabbage juice.
Explanation:The color changes observed during the red cabbage juice lab are a result of chemical changes caused by the reaction between the substances being tested and the red cabbage juice. The red cabbage juice contains natural compounds called acid-base indicators, which change color depending on the pH of the solution. When an acidic or basic substance is added to the cabbage juice, it reacts with the acid-base indicators, causing a change in color.
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In one process, 5.95 kg of caf2 is treated with an excess of h2so4 and yields 2.45 kg of hf. calculate the percent yield of hf.
Answer: The percentage yield of hydrogen fluoride is 80.3 %
Explanation:
To calculate the number of moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex] .....(1)
Given mass of [tex]CaF_2[/tex] = 5.95 kg = [tex]5.95\times 10^3g[/tex] (Conversion factor: 1 kg = 1000 g)
Molar mass of [tex]CaF_2[/tex] = 78.07 g/mol
Putting values in equation 1, we get:
[tex]\text{Moles of }CaF_2=\frac{5.95\times 10^3g}{78.07g/mol}=76.21mol[/tex]
The chemical equation for the reaction of calcium fluoride and sulfuric acid follows:
[tex]CaF_2+H_2SO_4\rightarrow CaSO_4+2HF[/tex]
As, sulfuric acid is present in excess. It is considered as an excess reagent.
Calcium fluoride is considered as a limiting reagent because it limits the formation of product.
By Stoichiometry of the reaction:
1 mole of calcium fluoride produces 2 moles of hydrogen fluoride
So, 76.21 moles of calcium fluoride will produce = [tex]\frac{2}{1}\times 76.21=152.42mol[/tex] of hydrogen fluoride
Now, calculating the mass of hydrogen fluoride by using equation 1, we get:
Molar mass of hydrogen fluoride = 20 g/mol
Moles of hydrogen fluoride = 152.42 moles
Putting values in equation 1, we get:
[tex]152.42mol=\frac{\text{Mass of hydrogen fluoride}}{20g/mol}\\\\\text{Mass of hydrogen fluoride}=(152.42mol\times 20g/mol)=3048.4g=3.05kg[/tex]
To calculate the percentage yield of hydrogen fluoride, we use the equation:
[tex]\%\text{ yield}=\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100[/tex]
Experimental yield of hydrogen fluoride = 2.45 kg
Theoretical yield of hydrogen fluoride = 3.05 kg
Putting values in above equation, we get:
[tex]\%\text{ yield of hydrogen fluoride}=\frac{2.45kg}{3.05kg}\times 100\\\\\% \text{ yield of hydrogen fluoride}=80.3\%[/tex]
Hence, the percentage yield of hydrogen fluoride is 80.3 %
Magnesium reacts with hydrochloric acid, HCl, to form magnesium chloride and hydrogen gas. The reaction is: Mg + 2HCl → MgCl2 + H2 What is the mass of HCl that would be required to completely react with 5.2 grams of Mg? 6.9 6.934 16 15.60
the answer above is wrong
Increasing the total pressure above a liquid raises the boiling point. Which of the following best explains why?
If you eat 3.00 moles of sugar, how many molecules did you consume?
3.00
2.00 x 10^23 molecules
5.00 x 10^ -24 molecules
1.81 x 10^24 molecules
Answer:
[tex]Molecules\ sugar=1.81x10^{24}molecules\ sugar[/tex]
Explanation:
Hello,
In this case, Avogadro's number help us to realize that 1 mole of any substance has 6.022x10²³ molecules of the same substance, in such way, by applying that relationship one computed the consumed molecules of sugar as shown below:
[tex]Molecules\ sugar=3.00mol\ sugar*\frac{6.022x10^{23}molecules\ sugar}{1mol\ sugar} \\Molecules\ sugar=1.81x10^{24}molecules\ sugar[/tex]
Best regards.
what effect does adding a solute have on the boiling point of a solution? a. the temp. at which the solution boils is lowered b. the temp. at which the solution boils is unchanged c. the temp. at which the solution boils is raised d. the solution will never reach a boiling point temp.
A dissolved solute raises the boiling point of a solvent.
The Mystery Salt
Imagine that you have a barrel of salt, but you forgot to label it. You know it must be either KNO3, or KCl.
You look at the solubility curves for KNO3 and KCl and you find that at 35 degrees Celsius, 100 g of water can dissolve about 30 g of KNO3, or about 37 g of KCl.
You have a scale, a hot plate, a thermometer, empty beakers, and plenty of water.
1. How can you determine whether the barrel contains KNO3 or KCl? Hint: What property could you use to identify the mystery salt? (1 point)
2. Explain exactly what you would do and why you would do it. (2 points)
3. How would your results identify the mystery salt? Hint: What results would indicate KNO3? What results would indicate KCl? (2 points)
Question 1 :
To determine whether the salt is KCl or KNO3, one should look for the difference between them in terms of their physicochemical properties, such as their solubility.
Since we have the solubilité of KCl and KNO3, we can use the property of solubility to determine if the mystery salt is KCl or KNO3.
Question 2:
We will try to reproduce the conditions to determine the solubility of the salt at 37°C.
We will put into the beaker 100ml of water (equivalent to 100g) and dissolve a defined quantity of the salt (the number should be between the solubility of the KCl (37g) and KNO3 (30g) so between 30g and 37g).
Let's dissolve for example 32g of the salt, then, heat with the hotplate until the temperature of the beaker content will be 35 ° C (use the thermometer to determine the exact temperature).
Why?
This manipulation aims to determine the solubility of our mystery salt to know if it is KNO3 or KCl. In our conditions, we will obtain two different possibilities depending on if the salt is KCl or KNO3, this justifies why we took a quantity between 30g and 37g of salt.
If it is KNO3 (solubility of 30g/ml) we will observe a precipitation in the beaker because we exceed its solubility.
If it is KCl (37g/100) we will not observe a precipitate since we did not attempt the solubility of KCl
Question 3:
Finally to determine the composition of salt: we know that the solubility of KCL is 37g / 100ml (that is to say if we dissolve a higher mass (38g for example), we will observe a precipitation of salt) and that the solubility of KNO3 is 30g / 100ml (that is to say if we dissolve an upper mass (32g for example), we will observe a precipitation of salt)
In our experiment, 32g of salts were dissolved. If it is KCl, we will not observe a precipitate since the minimum concentration to start having a precipitate is not yet reached (37g / 100ml).
If it is KNO3, a precipitate will be observed since the minimum concentration to start having a precipitate is not yet reached (30g / 100ml).
Which one has the greatest number of atoms? 1. all have the same number of atoms 2. 3.05 moles of water 3. 3.05 moles of krypton 4. 3.05 moles of neon 5. 3.05 moles of nh3?
The greatest number of atoms is found in 3.05 moles of ammonia (NH₃) because, with one nitrogen and three hydrogen atoms per molecule, it results in a total of 12.20 moles of atoms. Water (H₂O) would come second with 9.15 moles of total atoms. Single-element samples like krypton and neon only have 3.05 moles of atoms since they are monatomic.
The question of which sample has the greatest number of atoms can be determined by understanding the concept of moles in chemistry. One mole of any substance contains Avogadro's number of entities, which is approximately 6.022 * 10²³. In this case, whether we have 3.05 moles of water (H₂O), krypton (Kr), neon (Ne), or ammonia (NH₃), each mole of any of these substances would have the same number of molecules or atoms.
However, when we are looking for the total number of atoms, for compounds such as water and ammonia which are made up of multiple atoms, the total number of atoms is higher compared to elements like krypton and neon which are atomic. Thus, water, which has three atoms per molecule (two hydrogens and one oxygen), and ammonia, which has four atoms per molecule (one nitrogen and three hydrogens), would have more total atoms when compared with a single atom of krypton or neon per mole
Since 3.05 moles of ammonia (NH3) consist of 1 nitrogen atom and 3 hydrogen atoms per molecule, the total would be 3.05 moles * 4 atoms/molecule = 12.20 moles of atoms. The same calculation for water would give us 3.05 moles * 3 atoms/molecule = 9.15 moles of atoms. Therefore, 3.05 moles of ammonia have the greatest number of atoms.
Which is not used in integrated pest management?
A. synthetic pesticides
B. bacteria
C. natural ladybugs
D. viruses
Acid strength in a series of h−a molecules increases with increasing size of
a. acid strength in a series of molecules increases with increasing size of .
a. True
b. False
The statement that acid strength in a series of H-A molecules increases with increasing size of A is True because the strength of the bond decreases.
What is effect of the size of A on the strength of acid HA?The strength of an acid is related to the strength of the bond between the hydrogen atom and the negative atom.
Increasing the size of A in an acid HA will increase the acid strength because as size increases, the H-A bond will become weaker as the atoms will be farther apart.
The ability to release H⁺ ions will increase as the H-A bond becomes weaker.
Therefore, the statement that acid strength in a series of H-A molecules increases with increasing size of A is True because the strength of the bond decreases.
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A solution is a mixture _____. in which a solid solute is always dissolved in a liquid solvent that is heterogeneous that has the same properties throughout from which the solute can be filtered
Answer: A solution is a homogeneous mixture inwhich a solid solute is dissolved in a solvent .
Example , milk in water.
Table salt in water.
Chemical solutions are homogeneous. Properties are same throughout.
While heterogeneous solution, there are more than two types of matter like solid, liquid.
Example, sand in water, ice cubes in drinks.
Most earthquakes occur along fractures in the Earth's crust called faults. Most faults occur along the edges of A) continents. B) polar regions. C) tectonic plates. D) mountain ranges.
Most earthquakes occur along fractures in the Earth's crust called faults. Most faults occur along the edges of tectonic plates. . thus option C is correct.
what is earthquake?A sudden release of stress along faults in the earth’s crust can be called as earthquake; the process is like where the tectonic plates move slowly , but they get stuck at their edges due to friction.
When the stress overcomes the friction causes earthquake and the resulting waves propagate through the ground and over its surface generate a shaking that we perceive as earthquakes.
The main causes of earthquakes include Plate tectonics which account for most earthquakes worldwide, Induced quakes caused by human activity, like tunnel construction, Volcanic quakes, Collapse quakes caused by cave-ins, mostly in karst areas.
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Maya, a student, performs a titration. She completes the following steps as part of her titration procedure. 1. She cleans and rinses a burette with base solution. 2. She fills the burette with standardized base solution. 3. She adds a base from a burette to an acid. 4. She observes a color change in the Erlenmeyer flask. 5. She continues to add more base. Based on the above procedure, will she obtain accurate results? Yes, because the more base there is, the better the results will be. No, because she initially contaminated the burette with base. Yes, because she used a standardized base solution in the burette. No, because she did not stop adding base once the color changed.
the vapor pressure of 25 milliliters of water at 25 degrees celcius will be the same as
The vapor pressure of 25 milliliters of water at 25 degrees Celsius is 23.8 mmHg. The exact molecular formula of substance Xy would require additional information such as the actual change in vapor pressure caused by the added solute and comparison with Raoult's Law to determine the number of moles of solute.
Explanation:The vapor pressure of 25 milliliters of water at 25 degrees Celsius is a physical property dependent on temperature, not the volume of water. Therefore, it is the same regardless of the amount of water present, provided that there is enough water to establish an equilibrium between liquid water and water vapor. The vapor pressure is given by its equilibrium at a certain temperature, and for water at 25 degrees Celsius, it is 23.8 mmHg.
To determine the molecular formula of substance Xy from the information given, we can use Raoult's Law and the concept of molality. First, we calculate the number of moles of substance Xy using its molecular weight and the mass of the substance provided. Next, we use the change in vapor pressure and Raoult's Law to find the molality and the number of moles of solute, which gives us the value of the subscript y in the molecular formula Xy.
Final answer:
The vapor pressure of 25 milliliters of water at 25 degrees Celsius will be similar to the vapor pressure of pure water at that temperature, which can be estimated using the given table.
Explanation:
The vapor pressure of 25 milliliters of water at 25 degrees Celsius will be the same as the vapor pressure of pure water at that temperature. According to the table provided, the vapor pressure of water at 25 degrees Celsius is not given. However, we can use the information given at other temperatures to make an estimate.
For example, according to the table, the vapor pressure of water at 30 degrees Celsius is 42.2 mmHg, and at 20 degrees Celsius it is 17.5 mmHg. Since vapor pressure generally increases with temperature, we can estimate that the vapor pressure of water at 25 degrees Celsius will be closer to 30 degrees Celsius than to 20 degrees Celsius.
Therefore, we can estimate that the vapor pressure of 25 milliliters of water at 25 degrees Celsius will be around 42.2 mmHg.
Which term is defined as the change in the direction of light when it goes from one medium into a different medium?
Question options:
Reflection
Refraction
Diffraction
Absorption
Light traveling through air strikes the surface of the four different materials below. Which material reflects light but does not refract it?
Question options:
Diamond
Prism
Metal spoon
Water droplets
Reflection happens when a wave __________ .
Question options:
compresses air particles as it travels
compresses air particles as it travels
strikes an object and bounces off of it
causes ripples in a body of water
Why does the pencil appear broken in the cup of water?
Question options:
Electromagnetic/Light waves cannot travel through solids.
Electromagnetic/Light waves travel at different speeds through different media.
Electromagnetic/Light waves compress more when they travel through denser media.
Electromagnetic/Light waves get closer together when they go through dense media like glass.
What is occurring when a light wave diffracts?
Question options:
The light wave is bending around an obstacle or through a barrier.
The light wave is bending when it goes from gas to liquid.
The light wave is bouncing off of a smooth surface.
The light was is absorbing.
On a beautiful night in Washington D.C., you see a mirror image of the Washington Monument and surrounding scenery. What causes this mirror image?
Question options:
White light
Refracted light
Absorbed light
Reflected light
The BEST example of diffraction is the image of
Question options:
A ring around the Sun caused by particles in the air.
Looking down in the pool and seeing your foot appearing to be broken from your leg.
A fingerprint that appears to be enlarged under a magnifying glass.
Seeing your face as it appears in a mirror.
Which statement is true about transmission and absorption?
Question options:
Transmission is when light passes through an object and absorption is when some or all of the light is taken in or absorbed by the object.
Transmission is when light cannot go through an object and absorption is when light bounces off an object.
Transmission is when light bounces off an object and absorption is when light passes through an object.
Transmission and absorption are when the light bounces off of an object.
Answers of this questions are,
1) Reflection
2) Metal spoon
3) strikes an object and bounces off of it.
4) Electromagnetic/Light waves cannot travel through solids.
6) The light wave is bending around an obstacle
7)Reflected light
8) A ring around the Sun caused by particles in the air.
9) A = True
What is Reflection ?Reflection is the change of direction of the wave at the interface which separates two media. it get incident on the other media and get return to the same media is called as reflection. Common examples include the reflection of light, sound and water waves.
we can see that in the dark room when we incident light on the mirror, the direction of the light changes at the point of the incidence. in the scientific language we can say that light has reflected from the surface of the mirror. in this case angle of incidence is always equal to angle of reflection.
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All organisms use oxidation-reduction reactions to harness energy, and this newly harvested energy is used to produce atp. oxidation is defined as the loss of electrons. reduction is the gain of electrons. the energy in fuel molecules (often carbohydrates) is in the form of electrons. when electrons are removed from their high-energy state in fuel molecules (the electron donors), those molecules are oxidized. the electrons must be added to another molecule, which serves as the electron acceptor. as it gains electrons, the electron acceptor is reduced. when these electrons arrive at the final electron acceptor, they are at a lower-energy state compared to their original position in the electron donor. the goal is to harness the energy the electrons lose during this transfer process. in this activity, you will examine three equations and indicate which reactants are electron donors and which are receptors. in addition, you will identify the oxidized product and the reduced product
A molecule of antifreeze, ethylene glycol, has the formula c2h4(oh)2. how many atoms are there in one molecule of antifreeze?
Answer:
the total atoms in one molecule of antifreeze = 2 + 6 + 2 = 10
Explanation:
The number of atoms in the given ethylene glycol molecule can be calculated from its molecular formula.
The molecular formula is : [tex]C_{2}H_{4}(OH)_{2}[/tex]
The subscripts represent the multiplicity of the atoms present
Here the subscript on carbon = 2 so there are two carbon atoms
the subscript on hydrogen = 4 and two on OH, so the total hydrogen atoms = 6
The subscript on oxygen =2 so the total oxygen atoms= 2
Hence the total atoms in one molecule of antifreeze = 2 + 6 + 2 = 10
What volume of 6.00 m naoh would be required to increase the ph to 4.93?
The Volume of NaOH is mathematically given as
V=3.2 L
Volume of NaOHGenerally the formula for PH is
Ph= Pka + log[A^-]/[HA]
4.93 = 4.76 + log((40+X)/(60-X))
0.17 = log ((40+X)/(60-X))
Therefore
X= 19.66 mmol = 0.019 mol
Generally the formula for molarity is
M= number of moles / volume
6 = 0.019 / V
V=3.2 L
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Both Decca and LORAN used _______ to determine location.
How many moles of H2SO4 are required to completely neutralize 0.10 moles of Ca(OH)2?
Answer:
0.10 mol of sulfuric acid will neutralize 0.10 mol of calcium hydroxide.
Explanation:
[tex]H_2SO_4+Ca(OH)_2\rightarrow CaSO_4+2H_2O[/tex]
1 mol of sulfuric acid reacts or neutralizes with 1 mol of calcium hydroxide.
Then 0.10 mole of calcium hydroxide will be neutralized by:
[tex]\frac{1}{1}\times 0.10 mol= 0.10 mol[/tex] of sulfuric acid
0.10 mol of sulfuric acid will neutralize 0.10 mol of calcium hydroxide.
Consider the following equation in chemical equilibrium. C2H4(g) + H2(g) mc009-1.jpg C2H6(g) + 137 kJ What happens to the amount of ethane (C2H6) when the temperature of the system is increased? The amount of ethane decreases. The amount of ethane increases initially and then decreases. The amount of ethane increases. The amount of ethane decreases initially and then increases.
Answer:
The correct answer is a) the amount of ethane decrease.
If you react 0.85 mol of HCI with excess sodium carbonate then how much water will be produced in grams
A decrease in the concentration of reactants causes the rate of the _____ reaction to slow.
a. complete
b. incomplete
c. forward
d. reverse
The correct answer is option (c). A decrease in the concentration of reactants causes the rate of the forward reaction to slow.
The rate of a chemical reaction is influenced by several factors, including the concentration of reactants. According to the law of mass action, the rate of a forward reaction is directly proportional to the concentration of the reactants. This means that if the concentration of reactants is decreased, the rate of the forward reaction will slow down.
Let's consider a simple reaction:
[tex]\[ A + B \rightarrow C \][/tex]
The rate law for this reaction can be expressed as:
[tex]\[ \text{Rate} = k[A]^m[B]^n \][/tex]
where [tex]k[/tex] is the rate constant, [tex]\( [A] \) and \( [B] \)[/tex] are the concentrations of reactants A and B, and [tex]\( m \) and \( n \)[/tex] are the reaction orders with respect to A and B, respectively.
If the concentration of either A or B is decreased, the rate of the reaction will decrease as indicated by the rate law. This is because there are fewer reactant molecules available to collide and react with each other.
The other options can be ruled out based on the following reasoning:
a. Complete reaction: This term refers to a reaction that goes to completion, where all reactants are converted into products. The rate of a complete reaction is not relevant to the question about the effect of reactant concentration on the rate.
b. Incomplete reaction: This term refers to a reaction that does not go to completion, often due to equilibrium conditions. Again, the rate of an incomplete reaction is not specifically related to the concentration of reactants.
d. Reverse reaction: The rate of the reverse reaction would actually increase if the concentration of products is decreased, according to Le Chatelier's principle. However, the question specifically asks about the effect of a decrease in the concentration of reactants, not products.
To accurately measure out 35 milliliters of liquid, you should use:
a 10-mL glass pipette several times
a 50-mL beaker
a 25-mL graduated cylinder two times
a 50-mL graduated cylinder one time
PLEASE HELP ASAP!!!
When silver tarnishes, a _____ reaction happens.
1. combustion
2. decomposition
3. double replacement
4. single replacement
5. synthesis
When silver tarnishes, a single replacement reaction occurs, during which silver is replaced by sulfur atoms, forming silver sulfide and changing the oxidation state of the silver.
Explanation:When silver tarnishes, a single replacement reaction happens. This is because the silver metal reacts with sulfur, commonly found in traces in the air or from certain foods like eggs, and undergoes a reaction where the silver is replaced by sulfur atoms, forming silver sulfide.
During this process, the oxidation state of the silver changes, which is another characteristic of a single replacement reaction. Other possible reaction categories could include synthesis, decomposition, double replacement, and combustion, but these do not accurately describe the tarnishing of silver. In a synthesis reaction, multiple substances combine to form a single new substance, while in decomposition, a single compound breaks down to form multiple new substances. Combustion typically involves a substance reacting with oxygen to produce heat and light.
The tarnishing of silver thus illustrates an oxidation-reduction, or “redox” reaction, encompassing aspects of a single replacement reaction in which the element sulfur replaces the silver in a compound, altering the silver's oxidation state in the process.
What is the boiling point of a solution made by mixing 75.0g ZnCl2 with 375.0 grams of water? (Kb for water is 0.512 C/m)
Final answer:
The boiling point of a solution made by mixing ZnCl2 with water can be calculated using the boiling point elevation formula. In this case, the boiling point of the solution is approximately 100.707°C.
Explanation:
Boiling point elevation formula: ΔTb = iKbm
Given: Mass of ZnCl2 = 75.0g, mass of water = 375.0g, Kb for water = 0.512°C/m, i = 2 (for ZnCl2)
Calculations: ΔTb = 2 * 0.512 * (75.0/136.30) = 0.707°C
Boiling point of solution: 100.0°C + 0.707°C = 100.707°C
Water vapor in the earth's air is an example of a solution. what type of solution would this be
Answer:
gas in a gas
Explanation:
Because it is water VAPOR and not LIQUID water, it would be a gas in a gas. :)
Final answer:
Water vapor in the earth's air is a gaseous solution, where air acts as the solvent and water vapor is the solute. Water vapor plays a key role as a greenhouse gas and in the formation of clouds and precipitation, impacting the Earth's climate and weather patterns.
Explanation:
Water vapor in the earth's air is indeed an example of a solution, specifically, it is a gaseous solution. In this context, the air can be thought of as the solvent, and the water vapor as the solute. Starting with a basic understanding that air is a solution where nitrogen is the primary solvent, it is easy to then categorize the mixture of air and water vapor accordingly.
The Earth's atmosphere contains varying amounts of water vapor, which is crucial for climate and weather phenomena. It can range from less than one percent in the coldest environments to more than four percent in the warmest, humid air. Water vapor can act as a greenhouse gas, absorbing Earth's outgoing long-wave radiation, which influences the temperature of our planet. In the form of clouds, which are formed by water vapor condensing around condensation nuclei, water vapor also contributes to the Earth's albedo by reflecting incoming solar radiation. Whether in the form of vapor or condensed into clouds or precipitation, water plays a key role in atmospheric processes.
A cell is put into a liquid and remains its original size. What is the best conclusion that can be drawn from this observation? The concentration of water is higher in the cell than in the liquid, so water is leaving the cell. The concentration of water is higher in the cell than in the liquid, so water is moving in and out of the cell at the same rate. The concentration of water in the cell is the same as in the liquid, so water is moving in and out of the cell at the same rate. The concentration of water in the cell is the same as in the liquid, so water is leaving the cell.
Answer:
The concentration of water in the cell is the same as in the liquid, so water is moving in and out of the cell at the same rate.
Explanation:
The cell is essentially placed in an isotonic solution. In an isotonic solution the concentration of water inside the cell is the same as the outside, causing no water to flow in and out of the cell and keeping the size of the cell intact. In a hypertonic solution the concentration of water inside the cell is higher than the outside, causing water to flow out of the cell and shrinking the cell. In a hypotonic solution the concentration of water inside the cell is lower than the outside, causing water to flow in of the cell and making the cell turgid.