Answers
1. The first thing we do is chech if the reaction is balanced:
\(2Al\text{ + 3}CuCl_2\rightarrow3Cu+2AlCl_3\)As we can see the equation is balanced because there are on both sides:
2 atoms of Al
3 atoms of Cu
6 atoms of Cl
2. Now we calculate the moles of each reactant that we have:
For this we need to know the molar mass of each reactant. We calculate it using the periodic table.
\(\begin{gathered} M_{Al}=26.982\text{ }\frac{g}{mol} \\ M_{CuCl_2}=63.546\text{ }\frac{g}{mol}\text{ + }2\text{ }x\text{ }35.45\frac{g}{mol}=134.446\frac{g}{mol} \end{gathered}\)So we calculate:
\(\begin{gathered} n_{Al}=\frac{20g}{26.982\frac{g}{mol}}=0.74\text{ mol} \\ n_{CuCl_2}=\frac{90g}{134.446\frac{g}{mol}}=0.66mol \end{gathered}\)3. Now we calculate the limiting reactant:
If we consider that all the aluminum reacts, for 0.74 moles we would need:
\(n_{CuCl_2}=0.669\text{ }mol\text{ }x\frac{3\text{ }molCuCl_2}{2Al\text{ }}=1.11molCuCl_2\)So we see that we need 1.11 moles of CuCl2 in order for the aluminum to react completely. So the limiting reactant is CuCl2.
Now we calculate the amount of copper produced:
So the amount of copper produced is 0.669 moles.
Related Questions
A tree is shaken to get its fruits down.Why?
Answers
Answer:
Because orginisms need to eat the fruit to gain energy
Explanation:
Which of the following choices is not evidence supporting the theory of plate tectonics?
Answers
Answer:
B
Explanation:
Minute maid states that a bottle of juice contains 473 ml. Consumer groups are interested in determining if the bottles contain less than the amount stated on the label. To test their claim, they sample 30 bottles. The sample mean was 472ml and the standard deviation is 0. 2. What does mu represent here?.
Answers
The term mu here represents the average contents of all bottles of juice in the population, which is unknown. Option B
What is the standard deviation?The term standard deviation has to do with the extent that values are scattered around the mean. Now we know that the mean is the average of the distribution.
The standard deviation shows the extent to which the values differ from the mean value of the distribution. It is a measure of dispersion.
Thus, the term mu here represents the average contents of all bottles of juice in the population, which is unknown. Option B
Learn more about standard deviation:https://brainly.com/question/13498201
#SPJ1
Missing parts;
Minute Maid states that a bottle of juice contains 473 mL. Consumer groups are interested in determining if the bottles contain less than the amount stated on the label. To test their claim, they sample 30 bottles. The sample mean was 472mL and the standard deviation is 0.2.
What does mu represent here?
A. The average contents of all bottles of juice in the sample, which is unknown.
B. The average contents of all bottles of juice in the population, which is unknown.
C. The average contents of all bottles of juice in the population, which is 472mL.
D. The average contents of all bottles of juice in the sample, which is 472mL.
what is Boyle's law
Answers
law stating that the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature
Answer:
Boyle's law is a pressure versus volume relationship. The law was discovered by Robert Boyle in the 17th century. It states the pressure of a fixed amount of a gas is inversely proportional to its volume at a constant temperature.
Explanation:
pressure versus volume relationship
use the scale below to determine the ph value of the water, and determine whether the water is acidic, alkaline, or neutral. then predict what will happen to the ph if someone were to place a straw into the water and blow.
Answers
The pH strip is used to test the pH of a solution. The pH of water is neutral which is around 7.
The pH is known as the power of hydrogen. The pH is used to measure the degree of basicity and acidity of a solution. The amount of hydrogen ion concentration in a solution determines the pH of the solution. Mathematically, pH is given by the formula:
pH -= -log [H⁺]
The pH strip is a strip of litmus paper with which a person can measure the pH value of a liquid solution. The substance in the pH paper causes the paper to show a different color at different acidity values.
To learn more about pH check the link below:
https://brainly.com/question/172153
#SPJ4
Identify which sets of quantum numbers are valid for an electron. Each set is ordered ( n,ℓ,mℓ,ms ).
2,1,1,1/2
3,1,-1,1/2
3,2,-1,-1/2
4,2,1,1/2
4,3,-4,1/2
2,-1,1,-1/2
0,2,0,1/2
3,2,1,-1
1,0,0,-1/2
2,2,1,1/2
3,3,-2,-1/2
2,2,1,-1/2
Answers
Answer: 4,,3,2,1,4,1,3,2,1,4,2,3,1,4
Explanation:
In an acid/base titration where NaOH(aq) is the titrant and HCl(aq) is the analyte, what is true about the moles of each reactant present in the reaction flask at the equivalence point?
A. The moles of NaOH are equal to moles of HCl.
B. There are more moles of NaOH than HCl.
C. There are more moles of HCl than NaOH.
D. The concentrations are needed to determine moles.
Answers
\(\huge{\color{magenta}{\fcolorbox{magenta}{black}{\huge{\color{white}{\fcolorbox{aqua}{black}{✿ᴀɴsᴡᴇʀ✿}}}}}}\)
A) The moles of NaOH are equal to moles of HCl.
Explanation:
NaOH + HCl ↦NaCl + H20
How is fission different than alpha or beta decay?
Answers
Fission is when the parent atom splits into two daughter products. Whereas atom with a mass number is lower by 4 and an atomic number is lower by 2.
Is nuclear fission alpha or beta?Fission outcomes emit beta radiation, while actinides mainly emit alpha radiation. Many of each also radiate gamma radiation.
The beta decays form an isobaric, fission-product decay chain for each mass number.
Thus, Fission is when the parent atom splits into two daughter products.
To learn more about fission click here:
https://brainly.com/question/2732120
explain why d-block and transition metal should not be used interchangeably ?
Answers
Answer:
The d-block and transition metal are not interchangeable terms because the d-block elements are a subset of the transition metal elements. The transition metals are defined as the elements that have partially filled d orbitals, which includes the d-block elements as well as other elements that have partially filled d orbitals in other blocks, such as lanthanides and actinides. Therefore, while all d-block elements are transition metals, not all transition metals are d-block elements.
The plasma membrane is semipermeable because –
A.) Phospholipids let through both polar and non-polar substances.
B.) Proteins in the membrane act like gates to control entrance and exit of molecules.
C.) Cholesterol makes the membrane too rigid to let small molecules through.
D.) Moving materials through the membrane always requires the use of ATP.
Answers
The plasma membrane is semipermeable because proteins in the membrane act like gates to control entrance and exit of molecules.
Because the plasma membrane is semipermeable, only some compounds can pass through without being blocked by others. Proteins incorporated into the membrane play a major role in facilitating this selectivity. These proteins serve as gatekeepers and control how chemicals are transported through the membrane. Many protein types, including carrier proteins and channel proteins, aid in the movement of particular molecules by generating channels or changing their shape.
Therefore, the correct option is B.
Learn more about plasma membrane, here:
https://brainly.com/question/31465836
#SPJ1
Question 23 (1 point)
A student is given an object with a mass of 14.8 grams. When placed into a
graduated cylinder the water level rises from 25.0 mL to 34.7 mL.
What is the density of the object and would you expect it to float or sink in the
graduated cylinder if water has a density of 1.00 g/mL? Show all of your work.
Answers
Answer:
d = 1.53 g/mL
Object will sink into water
Explanation:
Given data:
Mass of object = 14.8 g
Initial volume of water = 25.0 mL
Final volume after adding object = 34.7 mL
Density of object = ?
Density of water = 1.00 g/mL
Solution:
Volume of object = Total volume - volume of water
Volume of object = 34.7 mL - 25.0 mL
Volume of object = 9.7 mL
Density of object;
d = mass/volume
d = 14.8 g / 9.7 mL
d = 1.53 g/mL
The density of water is 1.00 g/mL which means object is heavier than water thus object will sink into the water. The object with density less than water are float in it.
Imagine you are sitting on a surfboard in the ocean, waiting to catch a big wave. When the ocean is still, you are sitting at a point that would be a midpoint (the undisturbed position) of any waves that come your way. You look out to see and see a set of waves coming your way. What you see is actually a pattern of troughs followed be crest of the waves moving forward you and the shore. The distance between the crest is 5 meters. A crest passes you every 20 seconds.
Answer these questions:
A. What is the wavelength?
B. What is the frequency?
C. What is the wave velocity?
Plzzz help with is for a Science assignment so plz put a good answer the person who answers this good gets brainly!
Answers
Answer:
a. What is the wavelength?
The wavelength is 5 meters.
b. What is the frequency?
The frequency is 0.05Hz
c. What is the wave velocity?
The wave velocity is 0.25 meters per second
Explanation:
the wavelength is the distance between two troughs or two crests, which in this case is 5 meters.
the frequency=cycles/time. For this equation the equation would be 1/20, which is 0.05
the wave velocity=wavelength x frequency. Plug in the numbers, 5 x 0.05, and you will get 0.25.
does a location have an effect on the height of tides
Answers
Calculate the shortest wavelength (nm) emitted by an electron in a hydrogen atom undergoing a transition from the n = 4 level.
Answers
The shortest wavelength (nm) emitted by an electron in a hydrogen atom undergoing a transition from the n = 4 level is 97.2nm
Wavelength will be emitted, and the highest energy transition that is from n is equal to 4 levels. To the ground level, therefore sets wavelength will be 1 over wavelength will be equal to a ride, constant re into brackets 1 over n
E1 - E4= E => -2.18*10^-18 J \(\frac{15}{16\\}\)
=> -2.04*10^-18 joule
ΔE = Ephoton = h∨= hc/∧
here, H is plank's constant, C is the speed of light and ∧ is the wavelength of the incoming photon
∧= hc/Ephoton = (6.622*10^-34j.s)(2.998*10^8)/2.04*10^-18J
=9.720^10^-18m
= 97.20nm
To learn more about wavelength Please visit -
https://brainly.com/question/13533093
#SPJ4
Who first proposed the idea of the atom
Answers
hi, there!
The ancient atomic theory was proposed in the 5th century bc by the Greek philosophers Leucippus and Democritus
I NEED HELP ASAP!!!
Which answer below correctly identifies the type of change and the explanation when potassium iodide and lead nitrate are mixed?
physical change because the observation of a solid forming is evidence of a state change, which is reversible
physical change because even though the mixture had a color that was different from either of the two solids alone, each solid's physical properties remained exactly the same
chemical change because two substances were mixed, which always results in the formation of a
new substance
chemical change because both a color change and a solid formation were observed, which provide strong evidence of a new substance
Answers
Answer:
The correct answer is chemical change because both a color change and a solid formation were observed, which provide strong evidence of a new substance.
A physical change is a change in the state of a substance, such as a change from a solid to a liquid or a change from a liquid to a gas. A chemical change is a change in the composition of a substance, such as the formation of a new substance.
When potassium iodide and lead nitrate are mixed, a yellow precipitate forms. This precipitate is a new substance that was not present before the two substances were mixed. Therefore, the change that occurs when potassium iodide and lead nitrate are mixed is a chemical change.
The other answers are incorrect.
* Answer 1 is incorrect because the observation of a solid forming is not evidence of a state change. A state change is a change in the physical state of a substance, such as a change from a solid to a liquid or a change from a liquid to a gas. The formation of a precipitate is not a state change, but rather a chemical change.
* Answer 2 is incorrect because the color change of the mixture is evidence of a chemical change. When two substances are mixed and a new substance is formed, the new substance may have a different color than the original substances.
* Answer 3 is incorrect because the statement "two substances were mixed, which always results in the formation of a new substance" is not always true. For example, if you mix two different types of liquids, you may not get a new substance. Instead, you may just get a mixture of the two liquids.
The reaction between potassium iodide and lead nitrate results in a chemical change because a color change and solid formation, indicative of a new substance, are observed.
Explanation:When potassium iodide and lead nitrate are mixed, there is a chemical change that takes place. This is because both a color change and a solid formation were observed, which provide strong evidence of a new substance. In this reaction, two new compounds are formed - lead iodide and potassium nitrate - which is a clear indication of a chemical change. This process is not easily reversible, further supporting it being a chemical change.
Learn more about Chemical Change here:https://brainly.com/question/31633022
#SPJ2
What is the pH of 6.00 M H2CO3 if it has 7% dissociation? SHOW YOUR WORK!!!
Answers
From the calculation, the pH of the solution can be obtained as 0.39.
What is the pH of the solution?We first have to obtain the dissociation constant of the solution;
α = √Ka/C
Ka = Cα^2
Ka = 4.9 * 10^-3 * 6
Ka = 0.0294
Then we have that;
0.0294 = [x]^2/[6 - x]
0.0294 * [6 - x] = x^2
0.1764 - 0.0294 x = x^2
x^2 + 0.0294 x - 0.1764 =0
x = 0.41 M
Thus the pH of the solution is;
pH = -log[0.41]
= 0.39
pH is an important parameter in chemistry, biology, and many other fields, as it can affect the behavior and properties of substances and reactions.
Learn more about pH:https://brainly.com/question/15289714
#SPJ1
which term describes the repeated arrangement of the same molecule; total number of c h bonds in propanone is
Answers
The term (D) extended structure describes the repeated arrangement of the same molecule.
The extended structure is a type of structure that may be described as one in which the subunits are organized in a pattern that is repeated and occur in a ratio that is constant. Diamond and sodium chloride are two examples of extended structures. Extended structures have well-separated hydrophilic and hydrophobic layers made of propagating chains along the calixarene cavity axis. Therefore, the word "extended structure" is the one that is used to describe the repeating arrangement of the same molecules. So, choice D is the right one.
The correct question is as:
Which term describes the repeated arrangement of the molecule?
A. Bonds
B. Atoms
C. Molecular Model
D. Extended Structure
You can also learn about extended structure from the following question:
https://brainly.com/question/12077155
#SPJ4
Which is for which? Here is the image to my question. Please help god bless.
Answers
Answer:
1 - Gravitational.
2 - Normal
3 - Tension
4 - Frictional
5 - Centripetal
Explanation:
1. If you drop something, gravity pulls it down to the Earth, So falling towards the earth is gravity.
2. Pushing back on another object is normal, Newton's law: Every action has an equal and opposite reaction.
3. When two forces are pulled on opposite sides, the object must stretch which creates tension. Think of a rubber band. If it is pulled more than the object can stretch, it will tear. Tensile strength refers to how much pulling force an object can withstand before it tears.
4. When objects or molecules rub against other objects or molecules they create friction.
5. Last two options go together.
It is difficult to break the ionic bonds in a compound because of the
Answers
PLEASE HELP 85 POINTS!
Aluminum chloride is a white compound that contains one aluminum atom and three chlorine atoms.
Which model is the best representation of aluminum chloride?
O A.
B.
Al
Cl
Al
Cl
O C.
D.
Cl
Al
Al
Cl
Answers
Answer:
Model B (in image) would the best representation of aluminum chloride.
Explanation:
It's the only model the has three chlorine atoms and one aluminum atom.
Additionally, Cl can only bond once, so it can't be bonded to multiple different atoms. Also, Al needs to have more than one bond to achieve the octet rule.
1. (1pt for each) Mark O if the statement is true, X if wrong. For the wrong statements, correct
them.
(a) Since electrons are required, all electrochemical depositions are electrolytic. ()
(b) Increasing metal ion concentration has the same effect with the decreasing deposition current density on the electrodeposited structures. ( )
(c) The standard reaction Gibbs energy change for water electrolysis is positive, thus
generates 1.23V during electrolysis. ( )
(d) When the system is under charge transport limitation, the electrodeposited structures
are normally dense and uniform. ( )
(e) If you deposit metal A on metal 8 with huge lattice misfit between them, the deposition
process follows layer by-layer growth mechanism. ( )
(f) If the standard reduction potentials of metal A and B are 1.0V and -1.0V with respect to hydrogen electrode, you need to apply potential negative than -1.0V for making AxBy alloy. ( )
(g) When you make metal nanowire using AAO templated electrodeposition, the length of
wire can be controlled by the acid strength and voltage in anodization step. ( )
(h) The membrane electrolyte for PEMFC should be paths for both electronic and ionic movements. ( )
(i) The fuel cell electric vehicle generates no CO2, during operation. ( )
(j) The organic leveler used in the electrodeposition process interact with the substrate or
growing deposits normally through van der Waals interaction. ()
Answers
(a) Electroless deposition is a type of electrochemical deposition that does not require electrons - X.
(b) Increasing metal ion concentration increases the deposition current density on the electrodeposited structures - X.
(c) The standard reaction Gibbs energy change for water electrolysis is negative, not positive, and generates 1.23V during electrolysis under standard conditions - X.
(d) When the system is under mass transport limitation, the electrodeposited structures are normally dense and uniform - O.
(e) If you deposit metal A on metal B with a huge lattice misfit between them, the deposition process follows the island growth mechanism rather than the layer-by-layer growth mechanism - O.
(f) To make an AxBy alloy from metals A and B with standard reduction potentials of 1.0V and -1.0V, respectively, you need to apply a potential between -1.0V and 1.0V, depending on the desired stoichiometry - O.
(g) The length of metal nanowires made using AAO templated electrodeposition can be controlled by the anodization time and the thickness of the AAO template - O.
(h) The membrane electrolyte for PEMFC should only allow for ionic movement, not electronic movement - O.
(i) The fuel cell electric vehicle generates less CO2 than traditional vehicles but still produces some CO2 during operation - O.
(j) The organic leveler used in the electrodeposition process interacts with the substrate or growing deposits through chemical bonding rather than van der Waals interaction - O.
To learn more about the electrodeposition, follow the link:
https://brainly.com/question/29899263
#SPJ1
NEED HELP ON QUESTION ASAP! !
If answer is correct I'll rate you five stars a thanks and maybe even brainliest!
Please can you explain what this paragraph is trying to say. Also what does it mean in the sentence 'the difference in charge across the battery provides push for current' and what is the difference in charge.
Here's paragraph I need to have a simple definition of:
A high waterfall is also like a large voltage. It will transfer a lot of energy to the water (charge), making the river flow very fast (a large current) the difference in height makes the river flow. In a circuit , the difference in charge across battery provides push for the current.
Answers
A waterfall is a river's water falling rapidly to the ground. It is created in a river's upper course where there are high mountains.
Thus, Many waterfalls are transient and only occur during rainstorms because of their location in the landscape, where they are often over bedrock and fed by a small contributing region.
For general knowledge, we are listing the "Top 10 Highest Waterfalls in India" here. The Kunchikal Falls are the second-highest waterfall in Asia and the highest in all of India.
The waterfall, which is close to Agumbe in Karnataka's Shimoga district, has a height of 1,493 feet. The Varahi River creates the biggest waterfall. The sole permanent rain forest research is located in Agumbe Valley, one of India's most heavily rained-on regions.
Thus, A waterfall is a river's water falling rapidly to the ground. It is created in a river's upper course where there are high mountains.
Learn more about Waterfall, refer to the link:
https://brainly.com/question/30309599
#SPJ1
What is the molecular geometry of NH3 ?Group of answer choiceslineartrigonal planartrigonal pyramidaltetrahedral
Answers
Answer:
Trigonal Pyramidal
Explanation:
Here, we want to get the molecular geometry of ammonia
To get this, we have to look at the placement of the hydrogen atoms around the central nitrogen
Although there are 4 electron pairs and it is expected that ammonia is tetrahedral, the shape we have is a trigonal pyramidal shape because of the lone pair of electron
Select the volume units that are greater than one liter.
kiloliter
milliliter
megaliter
centiliter
deciliter
nanoliter
Answers
The volume units that are greater than one liter are kiloliter and megaliter. Kiloliter is equal to 1,000 liters, and megaliter is equal to 1,000,000 liters.
What the other volume signifies ?The other volume units listed are smaller than one liter. Milliliter is equal to one-thousandth of a liter, centiliter is equal to one-hundredth of a liter, deciliter is equal to one-tenth of a liter, and nanoliter is equal to one-billionth of a liter.
Knowing the conversions between these volume units is essential in science and everyday life, as they are used to measure the volumes of liquids and gases in different contexts.
To know more about Megaliter , visit :
https://brainly.com/question/14439506
#SPJ1
hi!! can somebody help me with this question?
which is the best example of commensalism?
A. honey bees feed on the pollen of cornflowers and help the flowers reproduce
B. barnacles ride on a gray whales back to obtain food, and the whale is not harmed
C. squirrels and chipmunks eat the same nuts in a forest where food is scarce
D. prairie dogs often collect and eat food in groups so they are better protected from enemies
thx to anybody that helps! ♡︎
Answers
Answer:
B: Barnacles ride on a gray whale's back to obtain food, and the hale is not harmed.
Explanation:
I got it right on Edge.
WILL GIVE BRAINLIEST!!!
Use this media to help you complete the question.
There are three known forms of hydrogen. These forms are called (isotopes, ions, copies) of each other. Each of these forms will have the same number of (neutrons, protons, electrons) but different numbers of (neutrons, protons, electrons) in their nuclei.
Answers
Answer:
Isotopes, protons, netrons
Explanation:
Answer:
There are three known forms of hydrogen. These forms are called Isotopes of each other. Each of these forms will have the same number of protons but different numbers of neutrons in their nuclei.
Explanation:
what is the original pressure of a 750 ml sample of He at 0 degrees Celsius if it exerts 2 atm at 25 degrees Celsius and 500 ml
Answers
To determine the original pressure of a 750 ml sample of helium (He) at 0 degrees Celsius, we can use the combined gas law, which relates the initial and final conditions of a gas sample. The combined gas law equation is:
(P1 × V1) / (T1) = (P2 × V2) / (T2)
Where:
P1 and P2 are the initial and final pressures, respectively.
V1 and V2 are the initial and final volumes, respectively.
T1 and T2 are the initial and final temperatures, respectively.
Let's assign the given values:
P1 = unknown (original pressure)
V1 = 750 ml (initial volume)
T1 = 0 degrees Celsius (initial temperature)
P2 = 2 atm (final pressure)
V2 = 500 ml (final volume)
T2 = 25 degrees Celsius (final temperature)
Before using the combined gas law equation, we need to convert the temperatures to Kelvin scale by adding 273.15 to both T1 and T2:
T1 = 0 + 273.15 = 273.15 K
T2 = 25 + 273.15 = 298.15 K
Now we can plug in the values into the combined gas law equation:
(P1 × 750 ml) / (273.15 K) = (2 atm × 500 ml) / (298.15 K)
To solve for P1, we can cross multiply and rearrange the equation:
P1 = (2 atm × 500 ml × 273.15 K) / (750 ml × 298.15 K)
P1 = 0.924 atm
Therefore, the original pressure of the 750 ml sample of helium at 0 degrees Celsius is approximately 0.924 atm.
6) Given that the density of olive oil is 0.92 g/mL, calculate the followin a. The mass of 20.0 mL of olive oil. The volume of 20.0 g of olive oil.
Answers
We are given:
Density of Olive oil = 0.92 g / mL
Mass of 20 mL Olive oil:
We know that the density = 0.92 grams / mL
multiplying the numerator and the denominator by 20
Density = 0.92 * 20 grams / 20 mL
Density = 18.4 grams / 20 mL
So, we have 18.5 grams in 20 mL of Olive oil
Volume of 20 grams Olive oil:
We need to multiply the numerator and the denominator of density by a number, that when multiplied by 0.92 will give 20
let that number be x:
0.92 * x = 20
x = 20/0.92
x = 21.74 (approx)
Multiplying the numerator and the denominator by x:
Density = 0.92 grams / 1 mL
Density = 0.092 * 21.74 / 21.74 mL
Density = 20 grams / 21.74 mL
So, we can see that 20 grams of the oil will have the volume 21.74 mL
CALCULATION OF DENSITY:
The density of a substance can be calculated by dividing the mass by its volume. That is;Density = mass (g) ÷ volume (mL)
The density of olive oil is given as: 0.92g/mL
QUESTION 1:
Hence, the mass of 20mL (volume) olive oil is calculated as follows:Mass = density × volume
Mass = 0.92g/mL × 20
Mass of olive oil = 18.4grams.
QUESTION 2:
The volume of 20g (mass) of olive oil is calculated as follows:Volume = mass ÷ density
Volume = 20 ÷ 0.92
Volume of olive oil = 21.74mL
Therefore;
The mass of 20mL of olive oil is 18.4gThe volume of 20g of olive oil is 21.74mLLearn more: https://brainly.com/question/2040396?referrer=searchResults
When zinc reacts with copper sulfate solution, zinc sulfate solution and copper are formed.(i) An experiment was carried out to measure the temperature change when zinc powder reactswith copper sulfate solution.initial temperature of copper sulfate solution = 20 °Cfinal temperature of mixture after the reaction = 46 °CExplain what the temperature readings show about the type of heat change that occurs duringthis reaction.
Answers
The temperature increase from 20 °C to 46 °C indicates that the reaction between zinc and copper sulfate solution is exothermic, with heat being released into the surroundings.
In the given reaction between zinc and copper sulfate solution, the temperature change can provide insights into the type of heat change occurring during the reaction. Based on the provided information, the initial temperature of the copper sulfate solution was 20 °C, and the final temperature of the mixture after the reaction was 46 °C.
The temperature increase observed in this reaction indicates an exothermic heat change. An exothermic reaction releases heat energy into the surroundings, resulting in a temperature rise. In this case, the reaction between zinc and copper sulfate solution is exothermic because the final temperature is higher than the initial temperature.
During the reaction, zinc displaces copper from copper sulfate to form zinc sulfate and copper metal. This displacement reaction is known as a single displacement or redox reaction. Zinc is more reactive than copper and therefore replaces copper in the compound.
The formation of new chemical bonds during the reaction releases energy in the form of heat. This energy is transferred to the surroundings, leading to an increase in temperature. The heat released is greater than the heat absorbed, resulting in a net increase in temperature.
The exothermic nature of this reaction can be explained by the difference in bond energies between the reactants and products. The breaking of bonds in the reactants requires energy input, while the formation of new bonds in the products releases energy.
In this case, the energy released during the formation of zinc sulfate and copper metal is greater than the energy required to break the bonds in copper sulfate and zinc.
For more such question on temperature visit:
https://brainly.com/question/4735135
#SPJ8