If the rose and strawberry containers were both found to be opened in the storage room, The kinetic energy of the strawberry particles would be greater than the rose particles, but the velocity would be the same. The correct answer is option B.
Kinetic energy is the energy associated with an object's motion. An object that has motion - whether it's vertical or horizontal motion - has kinetic energy.
The kinetic energy of an object is dependent on two variables: the object's mass and the object's velocity.
Strawberries are known to have a greater mass than rose petals. This explains why the kinetic energy of strawberry particles would be greater than the rose particles. However, the velocity of the particles in both containers would be the same since they are stored in the same storage room, and the containers were found opened.
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Which statement best describes how the pardoner is characterized in this passage.
Answer:
The word that best characterizes the Pardoner in this passage is hypocritical.
Explanation:
The Pardoner is against avarice, but as it turns out, he himself commits this sin.
Properties of a substance which can be measured or observed without altering the identity of the substance being measured are _____. A.) physical properties B.) chemical properties C.) reactive properties D.) phase properties
Answer:
The correct answer is physical properties and/or phase properties.
Explanation:
Chemical properties can alter the substance (if you burn wood, it becomes ash and is no longer wood).
Reactive properties are also chemically changing the substance.
Phase properties are where the element can be in solid, liquid, or gas form so these could also be an answer.
10. The electronic configuration of two elements X and Y are given below:
Зр
An
8p
compound.
Answer:
Pppppppp pppppppp pppppppp pppppppp
if you add 5 ml of 0.5 m naoh solution to 20 ml each of buffer b (with a ph of 4.03) and buffer c, which buffers ph would change the least?
If you add 5 ml of 0.5 M NaOH solution to 20 ml each of buffer B (with a pH of 4.03) and buffer C, the buffer whose pH will change the least is buffer B.
What is a buffer?
A buffer is a solution that resists changes in pH when acid or alkali is added. A buffer solution is a solution that contains a weak acid and its corresponding weak base or a weak base and its corresponding weak acid.
The Henderson-Hasselbalch equation can be used to calculate the pH of a buffer solution before and after adding a strong base or acid.
The equation is pH = pKa + log ([A-]/[HA])
where:pKa is the dissociation constant for the acid[A-] is the conjugate base of the acid when a command (such as NaOH) is added to a buffer solution, the base reacts with the weak acid to form the conjugate base of the acid and water. The addition of the conjugate base of the acid causes the pH of the solution to rising.
When an acid (such as HCl) is added to a buffer solution, the acid reacts with the weak base to form the conjugate acid of the base and water. The addition of the conjugate acid of the base causes the pH of the solution to decrease. Based on the above equation, pH change will be minimum in Buffer B. Therefore, the buffer whose pH will change the least is buffer B.
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If a piece of jewelry were electroplated with gold for 25 seconds at 1. 5 a, how many grams of gold would be plated?.
The gold that would be plated from jewelry that is electroplated with gold for 25 seconds at 1.5A is 0.07 grams.
How many grams of gold would be plated?The gold that would be plated can be calculated according to the electrochemical equation which is AU ++ 1e-Au(s).
Now, electrochemical reaction will result the plating of 1 atom of gold for 1 electron. So for 25 seconds at 1.5 A, we get 1.5*25 = 37.5 coulombs of electrons since the ampere is equal to coulomb per second.
The number of electrons we have if coulomb of electrons about 6.241Ă*10^18 electrons is 6.241Ă*10^18*37.5 = 2.34*10^20. Then we can calculate the moles using Avogadro's number which is 2.34*10^20 / 6.02*10^23 = 3.88*10^-4.
Then, we can calculate the grams of gold by multiplying the number of moles by the weight of the atom gold. So, 3.88*10^-4 * 196.96657 = 7.65*10^-2.
Thus the number of gold that would be plated in grams is 7.65*10^2 or equal to 0.077 grams.
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Which actions are functions of the circulatory system? Select four options.
delivers nutrients to cells
brings carbon dioxide to cells for use
protects the body from pathogens
removes waste materials from cells
helps cuts and wounds to heal
just giving random points to people who answer this
Answer:
carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
Explanation:
how can you predict whether a precipitation reaction will occur upon mixing two aqueous solutions?
A precipitation reaction takes place between two aqueous solutions that yield an insoluble compound that is also known as a precipitate.
One of the techniques to predict whether a precipitation reaction will occur upon mixing two aqueous solutions is the solubility rules.
Solubility rules are a simple set of guidelines that help determine whether an ionic compound will be soluble in water or insoluble. These rules are a way of predicting what will happen in a reaction and are very useful for chemists.In simple terms, the solubility rules states that:If an ionic compound contains the following ions, it is soluble: Li+, Na+, K+, NH4+, NO3-, ClO3-, ClO4-, CH3COO-, and C2H3O2-.
If an ionic compound contains any of the following anions, it is insoluble: CO32-, PO43-, SO32-, SO42-, S2-, OH-, and O2-.It is worth noting that there are exceptions to these rules. For example, CaSO4 is an insoluble compound according to the solubility rules, but it is soluble in water because it reacts with water to form ions.
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Calculate the solubility of silver chloride in a solution that is 0.120 M in NH3 (initial concentration).
The solubility of silver chloride (AgCl) in a solution that is initially 0.120 M in NH3 (ammonia) is approximately X mol/L.
To calculate the solubility of AgCl in the presence of NH3, we consider the formation of the complex ion [Ag(NH3)2]+. Using the equilibrium expression for the complex ion formation and the solubility product constant (Ksp) for AgCl, we determine that the concentration of Ag+ is equal to the solubility of AgCl. By considering the equilibrium constant (Kf) for the formation of the complex ion and the initial concentration of NH3, we can calculate the concentration of [Ag(NH3)2]+. Finally, knowing that [AgCl] is equal to [Ag+], we can conclude that the solubility of AgCl in the NH3 solution is approximately equal to the concentration of Ag+.
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Benzene
•Here are two contributing structures for benzene
Benzene is a highly important organic compound that consists of six carbon atoms arranged in a hexagonal ring with alternating single and double bonds. Its chemical formula is C6H6, and its molecular weight is 78.11 g/mol.
The electronic structure of benzene has been a topic of debate among chemists for many years. However, the most widely accepted theory is that it has a resonance structure. This means that its electrons are distributed equally over all six carbon atoms in the ring, giving it a unique set of properties that distinguish it from other hydrocarbons.
The resonance structure of benzene can be represented by two contributing structures, each of which shows two double bonds and four single bonds. The first contributing structure shows three carbon-carbon double bonds and three carbon-carbon single bonds, while the second contributing structure shows three carbon-carbon single bonds and two carbon-carbon double bonds. In reality, the electrons in the ring are distributed evenly over all six carbon atoms, resulting in a more stable s
The resonance structure of benzene has several important properties that distinguish it from other hydrocarbons. For example, it is highly stable and does not undergo addition reactions easily. It also has a higher electron density than other hydrocarbons, which makes it more susceptible to electrophilic aromatic substitution reactions. Additionally, it has a unique aromatic odor that is often associated with many organic compounds.
In summary, benzene is a highly important organic compound with a unique electronic structure that is characterized by resonance. Its resonance structure can be represented by two contributing structures, each of which shows two double bonds and four single bonds. The resonance structure of benzene has several important properties that distinguish it from other hydrocarbons and contribute to its unique set of properties.
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Find the number of dichlorinated isomers that can be formed by halogenation of propane.
Answer: Dechlorinated products can be divided into four constitutionally isomeric forms, whereas trichlorinated propane comes in five constitutionally isomeric forms. Would you be able to write structural formulas for the four dechlorinated isomers? Well, in this process, propane is halogenated, which is an interesting reaction.
Explanation: I do hope this helped you understand, keep on growing and learning!
A decomposition of hydrogen peroxide into water and oxygen gas is an exothermic reaction. If the temperature is initially 28˚ C, what would you expect to see happen to the final temperature?Explain what is happening in terms of energy of the system and the surroundings.
This indicates that the system's energy drops while the energy of the environment grows. As a result, the ultimate temperature is projected to be greater than the beginning temperature of 28 degrees Celsius.
What happens in exothermic reaction?The process sends heat into the environment since it is exothermic. The heat produced by the reaction is transferred to the surrounding environment, raising the temperature.
This is due to the fundamental rule of thermodynamics, which states that energy cannot be created or destroyed, but only moved from one form to another. In this case, the energy released by the reaction is transferred to the surrounding environment as heat energy, causing the temperature to rise.
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ito ang kontinenteng nagtataglay ng pinakamaraming bansa sa lahat ng kontinente
Answer:
Africa
Explanation:
Ang Africa ay ang kontinente na mayroong pinakamataas na bilang ng mga bansa sa lahat ng mga kontinente.
Kasalukuyan, ang bilang ng mga bansa sa kontinente ay 54, ito ay 53 bago ang South Sudan ang pinakabagong sumali.
Ang bilang na ito ay pinaniniwalaang tataas sa mga darating na taon dahil sa kaguluhan ng iba't ibang mga segment sa ilang mga bansa para sa kalayaan
If you need an object to move a further distance, how would you adjust the force?
Answer:
slingshot or throw it
Explanation:
How many moles are in 314 g of propane
Answer:
the propene Is C3H8, the Atomic weight of C Is 12.011 anche the weight of H Is 1.00784. so the weight of a mole of propene Is 3x12.011 + 8x1.00784=44.09572. so if you do 314/44.09572 you obtain the moles of 314g of propane that are =7.120872m
7.13 moles. Apply the formula, no. of moles= given mass/molar mass.
Given mass= 314g
Molar mass of propane (\(C_{3}H_{8}\)):
Molar mass of 1 carbon= 12g
3 C= 12*3= 36g
Molar mass of 1 hydrogen= 1g
8H= 8*1= 8g
Molar mass of propane= 36+8= 44g.
No. of moles= Given mass/molar mass
314/44 ≈ 7.13
Therefore, there are 7.13 moles in 314g of propane.
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Why might two objects be affected differently if the same strength force is exerted on them?
The two objects will be affected differently if if the same strength force is exerted on them as they will have different mass.
What is force?
Force is defined as a cause which is capable of changing the motion of an object. It can cause an object which has mass to change it's velocity. It is also simply a push or a pull . It has both magnitude as well as direction.Hence, it is a vector quantity.
It has SI units of Newton and is represented by'F'.Newton's second law states that force which acts on an object is equal to momentum which changes with time. If mass of object is constant, acceleration is directly proportional to net force acting on an object.
The concepts which related to force are thrust and torque .Thrust increases the velocity of an object and torque produces change in rotational speed of an object.
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What is Thermal Energy?
calories
Nutrition Facts
1. How many calories are in one serving of this food? (Remember, all
the numbers on a nutrition fact label are for 1 serving of the food)
|
2. In one serving of this food, how many calories are from fat?
Serving Size 1/2 cup (about 829)
Servings Per Container B
Amount Per Serving
Calories 200 calories from Fat 130
Daily Value
Total Fat 149
22%
Saturated Fat 99
45%
Trans Fat og
Cholesterol 5mg
18%
Sodium 40mg
2%
Total Carbohydrate 173
6%
Dietary Fiber 10
4%
Sugars 149
Protein 3g
3. If you consumed the entire container of this food, how many
calories would you consume?
4. If you consumed the entire container of this food, how many
calories from fat would you consume?
Vitamin A 10% • Vitamin C 0%
Calcium 10% Iron 6%
Dalya alone
Song
Tea
20
25
7
Total Care
Page 1 of 10
How many moles of H2 can be made from the complete reaction of 1.5 moles of Al? Given: 2 Al + 6 HCl → 2 AlCl3. + 3 H2
Answer:
2.25 mol H₂
Explanation:
To calculate mol of H₂ ensure that the equation is balanced. Then use the equation and dimensional analysis to convert the given 1.5 mol Al to mol of H₂.
A sphere of radius 0.457 m, temperature 32.2 ∘
C, and emissivity 0.924 is located in an environment of temperature 82.9 ∘
C. At what rate does the sphere (a) emit and (b) absorb thermal radiation? (c) What is the sphere's net rate of energy exchange? (a) Number (b) Number Units Units
a) The sphere emits thermal radiation at a rate of 139.75 Watts.
b) The sphere absorbs thermal radiation at a rate of 37.66 Watts.
c) The sphere's net rate of energy exchange is 102.09 Watts.
What are the rates of thermal radiation emission, absorption, and net energy exchange for the sphere?To calculate the rates of thermal radiation emission and absorption, we can use the Stefan-Boltzmann law, which states that the rate of thermal radiation emitted or absorbed by an object is proportional to its surface area, temperature, and the Stefan-Boltzmann constant.
a) The rate of thermal radiation emitted by the sphere can be calculated using the formula:
Emitting Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(temperature^4 - environment\ temperature^4\))
Plugging in the given values:
Emitting Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((32.2 + 273.15)^4 - (82.9 + 273.15)^4)\)
Emitting Rate ≈ 139.75 Watts
b) The rate of thermal radiation absorbed by the sphere can be calculated in a similar way but using the environment temperature as the object's temperature:
Absorbing Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(environment\ temperature^4 - temperature^4\))
Plugging in the given values:
Absorbing Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((82.9 + 273.15)^4 - (32.2 + 273.15)^4)\)
Absorbing Rate ≈ 37.66 Watts
c) The net rate of energy exchange is the difference between the emitting rate and the absorbing rate:
Net Rate = Emitting Rate - Absorbing Rate
Net Rate = 139.75 Watts - 37.66 Watts
Net Rate ≈ 102.09 Watts
Therefore, the sphere emits thermal radiation at a rate of 139.75 Watts, absorbs thermal radiation at a rate of 37.66 Watts, and has a net rate of energy exchange of 102.09 Watts.
Note: The units for all the rates are Watts.
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Help me please I need to write the number of atoms
Which of the following is not a suggested strategy for treating or preventing a communicable disease?
Get vaccinated to prevent infection from a virus.
Receive a vaccine while you are ill from a virus.
Get tested for a suspected infectious disease.
Use hand sanitizer if soap isn't available.
The strategy that is not a suggested way of treating or preventing a communicable disease is to receive a vaccine while you are ill from a virus.
Treatment and prevention of communicable diseaseA communicable disease is a type of disease that can spread from one person to another in the following ways:
contact with blood and bodily fluids;breathing in an airborne virus, orbeing bitten by an insect.There are various ways to prevent the spread of communicable diseases which include:
Immunization against infectious diseases, washing of hands regularly or the use of hand sanitisers if soap is not available.Get tested for a suspected infectious diseaseTo receive a vaccine while ill from a virus is not advisable because there may be chances of spreading your illness to health care workers who are administering the vaccine.
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Adding heat to a substance group of answer choices sometimes does not result in a temperature change. always results in a temperature increase. sometimes results in results in a temperature decrease.
Sometimes adding heating of substance set of answer options does not cause a change in temperature. resulting in an increase in temperature every time. results occasionally in a drop in temperature.
A substance's atoms and molecules move more quickly when it is heated. Whether the substance is a solid, liquid, or gas, this occurs. However, the temperature does not always rise when more heating of substance is added. For instance, adding heat to boiling water will not raise its temperature. This occurs when the heating of the substance reaches its boiling point, which is for all vaporizable substances. The average kinetic energy of the molecules will fluctuate when a system gains or loses heat. So long as a phase shift is not taking place, heat transfer causes a change in the system's temperature.
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For the rxn: 2SO3<--->2SO2+O2
Kp= 1.8*10^-5 at 350 C. What is Kc?
When considering the equilibrium of a chemical reaction, there are two important constants that can be used to describe the system: Kp and Kc. Kp is the equilibrium constant expressed in terms of partial pressures, while Kc is the equilibrium constant expressed in terms of molar concentrations.
In this case, we are given the value of Kp for the reaction 2SO3<--->2SO2+O2 at 350 C. However, we are asked to determine the value of Kc. Fortunately, we can use the relationship between Kp and Kc to solve for Kc.
The relationship between Kp and Kc is given by the equation Kp = Kc(RT)^(Δn), where R is the gas constant, T is the temperature in Kelvin, and Δn is the change in moles of gas particles during the reaction (products - reactants).
In this case, we can start by determining the value of Δn. From the balanced chemical equation, we can see that there are three moles of gas particles on the product side and two moles on the reactant side, resulting in a Δn of +1.
Next, we can substitute the given value of Kp (1.8*10^-5) and the value of Δn (+1) into the equation and solve for Kc. Using the ideal gas law to convert from partial pressures to molar concentrations, we can determine that R = 0.0821 L*atm/(mol*K) at 350 C.
Kp = Kc(RT)^(Δn)
1.8*10^-5 = Kc(0.0821)(623)^1
Kc = 3.53*10^-4 M
Therefore, the value of Kc for the reaction 2SO3<--->2SO2+O2 at 350 C is 3.53*10^-4 M.
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A certain gas has a volume of 195 mL at 20°C and 1.00 atm. What is the its volume in mL at60°C and 600 mm Hg?
To solve this question we will assume that the moles of gas do not change and that the gas behaves like an ideal gas.
For an ideal gas we have that its behavior will be according to the following equation:
\(PV=nRT\)Where,
P is the pressure of the gas, in atm
V is the volume of the gas, in liters
n are the moles of the gas
T is the temperature of the gas, in Kelvin
R is a constant, 0.08206 atm.L/mol.K
We have for this gas two states, an initial state (1) and a final state (2), so for each state we can apply the ideal gas law, we will have:
Initial state:
\(\begin{gathered} P_1V_1=nRT_1 \\ nR=\frac{P_1V_1}{T_1} \end{gathered}\)Final state:
\(\begin{gathered} P_2V_2=nR_T_2 \\ nR=\frac{P_2V_2}{T_2} \end{gathered}\)Since nR are constants, we can equate both equations:
\(\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}\)For each state the conditions of pressure, volume and temperature will be:
P1=1.00atm
V1=195mL = 0.195L
T1=20°c = 293.15K
P2= 600mmHg=0.79atm
T2=60°C=333.15K
V2=Unknown
We clear V2 and replace the known data:
\(V_2=\frac{P_1V_1}{T_1}\times\frac{T_2}{P_2}\)\(\begin{gathered} V_2=\frac{1atm\times0.195L}{293.15K}\times\frac{333.15K}{0.79atm} \\ V_2=\frac{1\times0.195\times333.15}{293.15\times0.79}L \\ V_2=0.280L=280mL \end{gathered}\)Answer: The final volume of the gas will be 280mL
What is the percent composition of a compound if it contains 40 grams of sulfur and 60 grams of oxygen?
A) 40% sulfur and 60% oxygen
B) 50% sulfur and 50% oxygen
C) 67% sulfur and 33% oxygen
D) 33% sulfur and 67% oxygen
Answer:
The correct answer is C.) 67% sulfur and 33% oxygen
Explanation:
The total mass of the compound is 40 grams of sulfur + 60 grams of oxygen = 100 grams. To find the percent composition of sulfur, we divide 40 grams by 100 grams and multiply by 100:
(40 g / 100 g) * 100% = 40%
To find the percent composition of oxygen, we divide 60 grams by 100 grams and multiply by 100:
(60 g / 100 g) * 100% = 60%
So the compound contains 67% sulfur and 33% oxygen.
Which of the following illustrates a single-replacement reaction?
A. CaCl2 + Na2CO3 → CaCO3 + 2Naci
O B. 2Fe + 3Br2 → 2FeBr3
O C. Ba(NO3)2 + NISO4 → BaSO4 + Ni(NO3)2
D. Fe + CuSO4 → Cu + FeSO4
The equation Fe + CuSO₄ → Cu + FeSO₄ illustrates the single displacement reaction. Hence Option (D) is the correct answer.
What is Single replacement reaction ?
A single replacement reaction, sometimes called a single displacement reaction, is a reaction in which one element is substituted for another element in a compound.
The starting materials are always pure elements, such as a pure zinc metal, iron or hydrogen gas, plus an aqueous compound.
Therefore, the equation Fe + CuSO₄ → Cu + FeSO₄ illustrates the single displacement reaction. Hence Option (D) is the correct answer.
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A herniated disc is an injury of the pads of cartilage between the vertebrae in which the cartilage bulges from normal position. What type of cartilage is affected mesenchymal hyaline fibros lac
The type of cartilage affected in a herniated disc is fibrocartilage. Fibrocartilage is the type of cartilage found between the vertebrae that provides support and acts as a shock absorber. It is characterized by its dense arrangement of collagen fibers.
The pads of cartilage between the vertebrae, known as intervertebral discs, are composed of fibrocartilage. Fibrocartilage is a specialized type of cartilage that contains a dense network of collagen fibers, giving it strength and resilience. It is found in areas where strength and flexibility are required, such as the intervertebral discs.
In a herniated disc, the fibrocartilage pads bulge or rupture from their normal position. This can occur due to various factors, such as age-related degeneration, trauma, or excessive pressure on the discs. The bulging or herniation of the fibrocartilage can cause pain, discomfort, and potential nerve compression, leading to symptoms like back pain, sciatica, or numbness in the affected area.
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In an endothermic reaction which bonds are stronger? The reactants or products? Explain
reactants because it had other chemicals, when more are mixed it will be more stronger.
It is the correct answer
in cell notation, the information is typically listed in which order? select the correct answer below: anode, anode solution, cathode solution, cathode anode, anode solution, cathode, c
Cell notation is a shorthand representation used to describe the components and conditions of an electrochemical cell. The correct order in cell notation is the anode, anode solution, cathode solution, and cathode.
It provides a concise way to convey information about the reactants, products, and their respective phases, as well as the electrode materials and any additional details relevant to the cell.
In cell notation, the components are listed in a specific order, typically as follows:
Anode | Anode Solution || Cathode Solution | Cathode
The anode is the electrode where oxidation occurs, and it is listed first in the notation. The anode solution refers to the electrolyte or solution surrounding the anode. The double vertical line "||" separates the anode compartment from the cathode compartment.
The cathode solution refers to the electrolyte or solution surrounding the cathode, which is the electrode where reduction occurs. The cathode is listed last in the notation.
Therefore, the correct order in cell notation is the anode, anode solution, cathode solution, and cathode.
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What is an ethical topic?
Answer:
its an issue
Explanation:
google words not mine
"ethical issue. A problem or situation that requires a person or organization to choose between alternatives that must be evaluated as right (ethical) or wrong (unethical). ... When considering this problem, lawyers may do well to ignore the letter of the law and realize that it is, at its heart, an ethical issue."