Which statement is the best explanation for the graph?
(1 point)
As temperature rises, gas particles are moving faster and are more likely to enter the solution.
As temperature rises, gas particles are moving faster and are more likely to enter the solution.
As temperature rises, the space between liquid particles decreases, leaving less room for gas particles.
As temperature rises, the space between liquid particles decreases, leaving less room for gas particles.
As temperature rises, the space between liquid particles increases, allowing more room for gas particles.
As temperature rises, the space between liquid particles increases, allowing more room for gas particles.
As temperature rises, gas particles are moving faster and may leave the solution.
As temperature rises, gas particles are moving faster and may leave the solution.
Answers
Answer:
As temperature rises, gas particles are moving faster and many leave the solution
Explanation:
The statement that correctly explains the graph attached is: "As temperature rises, gas particles are moving faster and may leave the solution."
We know that the solubility of a gas decreases with increasing temperature. This stems from the fact that the kinetic energy and velocity of gas molecules increases with increase in temperature.
That means that as a the temperature of a gas increases, its molecules move faster and are more likely to escape from solution rather than enter the solution.
This explains the decrease in the solubility of a gas with increase in temperature.
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Related Questions
Which statement describes a gas condensing into a liquid?
A.
The atoms in the molecules get heavier so they move less.
B.
The molecules break into smaller pieces that take up less space.
C.
The molecules stick together to make bigger molecules.
D.
The molecules get closer together and move more slowly.
Answers
Answer: molecules get closer
Explanation:
Condensation is the process in which molecules of a gas slow down, come together, and form a liquid. When gas molecules transfer their energy to something cooler, they slow down and their attractions cause them to bond to become a liquid
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Answer:
D. The molecules get closer together and move more slowly.
g a rigid waled cubical container is completely filled with water at 40 f and sealed. the water is then heated to 100 f. determine the pressure that develops in the container when the water reaches this higher termperature
Answers
The pressure that is develops in the container when the water is reaches this higher temperature is 2.03 × 10³ psi.
According to the law of mass of conservation , wet :
Density (40 °C) × V = Density ( 100 °C ) × (V + ΔV)
ΔV/ V = ( Density (40 °C) / Density ( 100 °C ) ) - 1
ΔV/ V = 1.940 / 1.927
ΔV/ V = 0.00675
The change in volume and bulk modulus relation given as :
K = - ΔP / ( ΔV/ V)
ΔP = - 300000 × - 0.00675
ΔP = 2.03 × 10³ psi
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HELP ME WITH THIS QUESTION ASAP PLESE!!
Answers
Answer:
the 2nd choice, nervous and muscular
an unknown quantity of gas held at 1195 K in a container with a volume of 27 L and a pressure of 1.65 atm. How many moles of gas are in the sample?
Answers
The number of moles of the gas present in the container at 1195 K and pressure of 1.65 atm is 0.45 mole
How do i determine the number of mole present in the container?From the question given above, the following data were obtained obtained:
Temperature (T) = 1195 KVolume of container (V) = 27 L Pressure (P) = 1.65 atmGas constant (R) = 0.0821 atm.L/mol KNumber of mole (n) =?Using the ideal gas equation, we can obtain the number of mole present in the container as follow:
PV = nRT
1.65 × 27 = n × 0.0821 × 1195
44.55 = n × 98.1095
Divide both sides by 98.1095
n = 44.55 / 98.1095
n = 0.45 mole
Thus, we can conclude that the number of mole of the gas present in the container is 0.45 mole
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how many half lives would it take for 6.02 x10^23 nuclei to decay at 6.25% (0.376x10^23) of the original number of nuclei
Answers
The number of half lives necessary for a given number of nuclei to decay to a specific proportion of their initial number depends on the nuclei's rate of decay. In this instance, the original number of nuclei is indicated to be 6.02x1023, while the percentage of decay is given to be 6.25%, or 0.376x1023.
We may use the equation N(t) = N_0*(1/2)t, where N(t) is the amount of nuclei at time t, N_0 is the starting quantity of nuclei, and t is the number of half lives, to calculate the necessary number of half lives.
We may solve for t by rearranging this equation, giving us t = log_2(N_0/N(t)). Using the supplied numbers as inputs, we obtain t = log_2(6.02x1023/0.376x1023), which is abbreviated to t = 5.7. As a result, it would require 5.7 half.
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when 56.6 g of calcium and 30.5g of nitrogen gas under go a reaction that has 90% yield, what mass of calcium nitride is formed?
Answers
90% of 100.2 g, or 90.18 g, of calcium nitride was produced.
What is chemical reaction?A chemical reaction is a process that changes one group of chemical constituents into another. As reactants are transformed into products, chemical bonds between atoms are formed and broken. Typically, this is an exothermic process that releases energy as heat or light.
Calcium nitride, also known as \(Ca_3N_2\), is created by the interaction of calcium and nitrogen gas. The mass of calcium nitride that is produced when 56.6 g of calcium and 30.5 g of nitrogen gas are combined can be calculated using stoichiometry.
The reaction's balanced equation is as follows: \(3C_a+N_2- > Ca_3N_2\)
Therefore, 3 moles of nitrogen are needed for every 1 mole of calcium. The following equation can be used to determine the moles of calcium
and nitrogen:
Moles of \(C_a\) = 56.6 g / 40 g/mol = 1.415 mol
Moles of \(N_2\) = 30.5 g / 28 g/mol = 1.089 mol
Since nitrogen is the limiting reagent and calcium and nitrogen have a mole ratio of 1.089:1.415, the following formula can be used to get the potential calcium nitride yield:
Theoretical yield = 1.089 mol × 92 g/mol = 100.2 g
The actual yield of calcium nitride is 90% of the theoretical yield because the reaction has a 90% yield. Therefore, 90% of 100.2 g, or 90.18 g, of calcium nitride was produced.
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151 grams of SO2 is equal to how meany moles
Answers
Answer:
151 g SO₂ × [1 mol SO₂/64.06 g SO₂] = 2.36 mol SO₂
Explanation:
As we approach fall, the trees begin to drop their leaves. If a leaf, with a mass of 0.00006 kg, drops 3.66 meters from the top of a tree and the acceleration due to gravity is 9.81 m/s2. Calculate the force at which the leaf will hit the ground.
(F = m * a)
Answers
All you do is take the mass and multiply it by the acceleration. The meters is there to throw you off.
explain what is happening at a molecular level during the dutch-process. b. rank the molecules from least likely to be present after the dutch process to most likely to be present after the dutch process. c. using the information above and your knowledge of acid-base chemistry provide an explanation for your rankings that addresses how you used structure to solve this problem. do not just quote pka values.
Answers
a) the Dutch process at the molecular level Pyrol and benzyl alcohol do not react with NaOH.
b) The molecules are ranked from those that are least likely to be present after the Dutch process to those that are most likely to be present after the Dutch procedure Pyrrol is more likely to be present than butyric acid, which has a lower likelihood of being there.
c) Butyric acid's carboxylic acid is removed using NaOH.
The acidic chemicals with a bitter taste are washed in the Dutch procedure using a strong base like NaOH. Basic substances are not cleansed and only very acidic substances are washed thoroughly. However, vanillin is only somewhat acidic, thiophenol is less acidic, butyric acid is acidic, benzyl alcohol is neutral, and pyrrol is basic.
a) Benzyl alcohol and pyrrol do not react with NaOH. However, butyric acid combines with it to produce sodium butyrate (CH₃CH₂CH₂COONa), vanillin creates its sodium salt ((2-OCH₃,4-CHO)C₆H₃ONa), and thiophenol creates sodium benzenethiolate (C₆H₅SNa).
b) Butyric acid is least likely to be present and pyrrol is most likely to be present. Butyric acid is followed in increasing order of presence by vanillin, thiophenol, benzyl alcohol, and pyrrole.
c). NaOH is used to wash away the carboxylic acid in butyric acid. Due to the aromatic ring, vanillin and thiophenol are acidic and combine with NaOH to generate a sodium salt that is water soluble. Because it is neutral and pyrrole is basic, neither benzyl alcohol nor pyrrole will react with NaOH.
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is isopropyl alcohol the same as hydrogen peroxide
Answers
Answer:
Unlike isopropanol, hydrogen peroxide is not a type of alcohol. You might recognize its chemical formula, H2O2, as being similar to that of water (H2O). The difference is that hydrogen peroxide has two oxygen atoms instead of one. That one extra oxygen atom makes it a strong oxidizer.
Which is one way that waves erode coastlines?
Answers
Answer:
Four main processes erode the destructive waves; hydraulic action, compression, abrasion and attrition. Hydraulic Action is the sheer force of water crashing off the coastline causing the material to dislodge and be carried away by the sea.
Answer:
a
Explanation:
how does the value of g on the earth is related to the mass of the earth and its radius drive it
Answers
The relationship between acceleration due to gravity (g), mass of earth (M) and the radius of earth (R) is \(g = \frac{GM}{R^2} \).
What is weight of an object?
The weight of an object is determined as the product of the object's mass and acceleration due to gravity.
F = mg
The gravitational force on objects in the universeThe gravitational force between two objects in the universe is directly proportional to the product of mass of the objects and inversely proportional to the square of the distance between the objects.
\(F = \frac{GmM}{R^2} \)
\(mg = \frac{GmM}{R^2} \\\\ g = \frac{GM}{R^2} \)
where;
M is the mass of the earth
R is the radius of the earth
Thus, the relationship between acceleration due to gravity (g), mass of earth (M) and the radius of earth (R) is \(g = \frac{GM}{R^2} \).
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what prevents you from suffercating when you ly down or fall asleep
Answers
Answer:
When the body senses it's not getting enough oxygen during sleep, it forces an awakening. At this time, the breathing airways open and breathing resumes. Because of this mechanism, you stand no chance of suffocating in your sleep.
Explanation:
The solubility data for another compound
is given below. What is the concentration
in g solute / mL solvent at 30.1 °C?
Sample
3
Temperature Boat Mass Boat + Solution Boat + Dry
(°C)
(g)
(g)
(g)
40.3
0.71
0.915
0.817
A. 0.89 g/mL
C. 0.11 g/mL
B. 0.98 g/mL
D. 1.1 g/mL
Answers
Based on the provided solubility data, the concentration of the compound in grams of solute per milliliter of solvent at 30.1 °C is 0.89 g/mL.
The concentration can be calculated by determining the mass of solute dissolved in a given volume of solvent. In this case, the mass of the solute (compound) is obtained by subtracting the mass of the boat and the dry boat from the mass of the boat plus the solution. At 40.3 °C, the mass of the solute is 0.817 g. However, to determine the concentration at 30.1 °C, we need to interpolate or estimate the solubility at that temperature since the data is not provided directly.
To estimate the concentration at 30.1 °C, we can assume that the solubility of the compound increases as the temperature increases (assuming it follows a similar trend as observed in the given data). Since 30.1 °C is lower than 40.3 °C, we can reasonably expect the concentration to be slightly lower than 0.817 g/mL. By analyzing the provided answer choices, we find that option A (0.89 g/mL) is the closest value to our estimate.
In summary, the concentration of the compound in grams of solute per milliliter of solvent at 30.1 °C is approximately 0.89 g/mL based on interpolation and the assumption that solubility increases with temperature.
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What is the correct formula that would result from the combination of the two ionic species?
Cs¹+ and Cl¹-
Answers
Answer: CsCl
Explanation:
When naming ionic compounds, the metal comes before the nonmetal.
write any three difference between shell and nucleus
Answers
Answer:
1)NUCLEUS -> It is the center of an atom which contain protons and neutrons
SHELL-> the space where the probability of finding electrons is maximum in the atom is known as shell
there are mainly four shells KLMN
2)NUCLEUS->The average potential of Nuclei is different from that of an atom.
SHELL -> The average Potential varies.
3)NUCLEUS ->Particles of the shell structure of nuclei are neutrons and protons
SHELL->Particles of the shell structure of an atom are electrons
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The National Institute of Science and Technology (NIST) kinetics database lists the rate constant, , of a particular gaseous reaction as 3.93×10−10 cm3⋅molecule−1⋅s−1 at 298 K.
A) Convert the rate constant to units of M−1⋅s−1 .
B) Convert the rate constant to units of Torr−1⋅s−1 .
Answers
Answer:B
Explanation:
.
if .000066 moles of a .01 m solution of carbonic acid dissociates then what is the k of carbonic acid
Answers
The equilibrium constant (K) for the dissociation of carbonic acid in this scenario is 4.4 * 10⁻⁷
Option c) 0.000066 * 0.000066 / 0.01 = 4.4 * 10⁻⁷ is correct.
To calculate the equilibrium constant (K) for the dissociation of carbonic acid (H₂CO₃), we need to use the provided information about the moles and concentration of the acid.
The given information states that 0.000066 moles of carbonic acid dissociate in a 0.01 M solution.
In the dissociation reaction of carbonic acid, we have:
H₂CO₃ ⇌ H+ + HCO₃⁻
The stoichiometric ratio indicates that for every mole of H₂CO₃ that dissociates, we get an equal number of moles of both H+ and HCO₃⁻.
Given that 0.000066 moles of H₂CO₃dissociate, we have 0.000066 moles of both H+ and HCO₃⁻ formed.
Now, let's calculate the equilibrium constant using the formula:
K = [H+][HCO₃⁻] / [H₂CO₃]
Plugging in the values:
K = (0.000066 * 0.000066) / 0.01 = 4.4 * 10⁻⁷
Therefore, the equilibrium constant (K) for the dissociation of carbonic acid in this scenario is (c) 4.4 * 10⁻⁷.
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Complete question is:
if .000066 moles of a .01 m solution of carbonic acid dissociates then what is the k of carbonic acid.
a) 0.000066-4.18/0.01 = 2.7.10⁻²
b) 0.000066-2/0.01 = 1.3-10⁻²
c) 0.000066 0.000066/0.01 = 4.4 10⁻⁷
d) 0.0000662/0.000066 0.01-6.6-10⁻³
Why are factory effluents harmful to aquatic
organisms?
Answers
Answer:
because they emit liquid waste wich is later dumped into the ocean causing a lot of harm and many fatalities in sea life
Explanation:
40 POINTS PLS HELP!
1. A description of what genetically modified foods are.
2. A list of crops that are typically genetically modified.
3. An explanation of why crops are genetically modified.
4. A description of how crops are genetically modified.
5. A list of how genetically modified crops affect society and the environment.
___________________________________
Same as top but these are questions:
1. What are genetically modified foods?
2. What crops are typically genetically modified?
3. Why are crops genetically modified.
4. How are crops genetically modified?
5. how do genetically modified foods affect society in the environment.
___________________________________
And PLS, don't use this just for points!
Thank you!
Answers
Answer:
1. Foods that have changes that are chemically introduced.
2. corn soybeans apples etc
3. sot they last longer or look better
4. new dna is placed in them and their seeds
5. they are not as good for humans
Explanation:
2.) Corn, papaya, potato, and apples.
3.) Crops are genetically modified so their size would increase, and the people will make more profit.
4.) Sometimes they get a needle full of DNA and inject that into whatever the object or organism is. Other times they use this technology device to deliver it.
5.) They contaminate the gene development and give us fake food that can harm our body.
~ I hope this helped you and have a nice day luv!!
F. According to the rules for naming compounds that you learned in this course, what is the
chemical name of this new product? What is its common name? (2 points)
Answers
Molecular compounds are termed by using the stem of the first element's name plus the suffix -ide, followed by the second element. Numerical prefixes are used to specify the number of atoms in a molecule.
What does "chemical common name" mean?The IUPAC defines a common name as one that clearly identifies a chemical but does not adhere to the current systematic naming convention. Acetone, which bears the scientific term, serves as an illustration of a common name. 2-propanone
What is the short answer to chemical?A chemical is any substance whose composition is known. A chemical always consists of the same "substance," to put it another way. Water is one of the substances found in nature.
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You were asked to notice that the rim of the porcelain evaporating dish is unglazed, and observe what water will do to the unglazed side of the piece of terra cotta plant pot on your tray. This is why we preheated the evaporating dish prior to measuring the evaporating dishes initial mass. Brian suggests to Matt that if the evaporating dish was not preheated, the mass of the anhydrate will be heavier resulting in a greater value for the anhydrate, and a smaller value for "z" in this formula, CuxCly • zH2O. Do you agree or disagree? Justify your answer
Answers
Yes, I am agree with the evaporating dish is not preheated, then the mass of the anhydrate will be heavier, resulting in a greater value for the anhydrate and a smaller value for "z" in this formula:
CuxCly • zH2O
An anhydrate is a chemical compound that does not contain any water molecules. An anhydrate is formed when the water molecules present in a hydrate are removed through heating or another process. When we heat a hydrated compound, it results in the loss of water molecules from the compound, leading to the formation of an anhydrate.The anhydrate's mass is measured by calculating the difference in weight of the evaporating dish containing the hydrated sample and the weight of the empty evaporating dish. When we use an unpreheated evaporating dish, it results in the loss of weight as the water molecules are released from the hydrated compound. The water molecules released from the sample will condense on the cooler surface of the evaporating dish, which will lead to a higher weight than the actual weight of the anhydrate. Therefore, if the evaporating dish is not preheated, then the mass of the anhydrate will be heavier, resulting in a greater value for the anhydrate and a smaller value for "z" in this formula, CuxCly • zH2O.For such more questions on anhydrate
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What is the mass (in grams) of 5.00 L of NH₃ at STP?
Answers
Answer:
3.79 grams
Explanation:
22.4= STP volume . Molar mass of NH3=17.031
5.00 NH3 × (1 mol/22.4 L) =0.223
convert to grams->
0.223× 17.031= 3.79
According to ideal gas equation and standard temperature and pressure conditions the mass in grams of ammonia is 0.037 g.
What is ideal gas equation?The ideal gas law is a equation which is applicable in a hypothetical state of an ideal gas.It is a combination of Boyle's law, Charle's law,Avogadro's law and Gay-Lussac's law . It is given as, PV=nRT where R= gas constant whose value is 8.314.The law has several limitations.
The law can be derived from microscopic kinetic theory .All the other gas laws equations can be derived from ideal gas equation, In the given example at standard temperature and pressure conditions, P=1 atmosphere
V=5 L , molar mass of ammonia=17.031 g/mole,R=8.314 T=273 K
Substituting all these values in ideal gas equation,
mass=PV×molar mass/RT
mass=1×5×17.031/8.314×273=0.037 g
Thus the mass of ammonia gas in grams at STP is 0.037 g.
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Electronegativity shares the same trend as lonization Energy for the same
reasons. Which statement best explains why fluorine has the highest
electronegativity (i.e., attracts shared electrons strongly)? *
a) The valence electrons are relatively close to the nucleus.
b) Fluorine has little attraction for its valence electrons and shares them easily.
c) The noble gases do not tend to bond with other elements so it is difficult to measure
their electronegativity values.
d) Fluorine has the smallest atomic radius out of all known elements.
Answers
Fluorine is the most electronegative element because it has 5 electrons in it's 2P shell. The optimal electron configuration of the 2P orbital contains 6 electrons, so since Fluorine is so close to ideal electron configuration, the electrons are held very tightly to the nucleus.Aug 15, 2020
Electronegativity: 3.98
Electron Configuration: 1s22s22p5
What is a food web?
A. A group of animals
B. A producer and consumer relationship
C. A food chain with two levels
D. How several food chains are related
Answers
Answer:
D. How several food chains are related
Explanation:
piece of copper iron silver and gold are dropped into a solution of iron sulphate the piece that will get a coating of a copper is known as
Answers
Pieces of copper, silver and gold are dropped into a solution of iron sulphate. The piece that will get a coating of copper is. ... Therefore, none of the three metals can displace iron from its salt solution. Hence, we observe that no reaction takes place and none of the pieces get coated.
Answer:
If it were a piece of iron dropped into a copper sulfate solution, precipitated copper would coat the iron
Use a table of ka or kb values to determine whether k c for the following reaction is less than, equal to or greater than 1 ch3co2- hso4- ⇌ ch3co2h so42-
Answers
Based on the Ka and Kb values of the reactants, the Kc value of the given reaction is greater than 1.
What are the Ka and Kb values of the reactants?The acid dissociation constant, Ka, of HSO4- is 1.2 × 10^-2.
The base dissociation constant, Kb for CH3CO2- is 5.6 × 10^-10
The given equation of reaction is as follows:
CH3CO2- + HSO4- ⇌ CH3CO2H + SO4^2-The Kc of the equation = Ka/KbSubstituting the Ka and Kb values:
Kc = 1.2 × 10^-2/5.6 × 10^-10
Kc = 2.14 × 10^7
Therefore, the Kc value of the given reaction is greater than 1.
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i need help guys hurry
Answers
Answer:
when an object is at sea level
Explanation:
wherever you are closest to the center of the Earth.
How can you tell if an atom is an isotope?
Answers
Answer:
Look up at the atom on the periodic table of elements and find out what its atomic mass is. Subtract the number of protons from the atomic mass. This is the number of neutrons that the regular version of the atom has. If the number of neutrons in the given atom is different, than it is an isotope.
What is the mass of 7 water molecules?
Answers
the mass of one molecule is 18.01528 ( 3. × 10−23 g )
And the mass of 6 molecules is 1.79×10−2g