Answer: A monopoly is the absence of competition in the market.
Explanation:
In such circumstances, the market creates a monopoly of one producer who takes huge capital and dictates prices. An example of a monopoly on the market is the existence of only one company that makes up the entire economic branch. In such circumstances, the monopolist can increase the product's price without losing the entire sale, i.e., operating successfully. In that situation, the monopolist remains the only one on the market, and the competition has no access to the market.
A current of 5.29 A is passed through a Sn(NO3)2 solution for 1.30 h . How much tin is plated out of the solution?
Answer:
15.26 g of tin
Explanation:
Given that the equation of the process is;
Sn^2+(aq) + 2e ------> Sn(s)
Since 1e = 1F= 96500 C
but q =It
t is in hours so it must be converted to seconds, the SI unit of time
Hence;
119g of tin is deposited by 2 * 96500 C
xg of tin is deposited by 5.29 * 1.30 * 60 * 60
x = 119 * 5.29 * 1.30 * 60 * 60/ 2 * 96500
x = 2946106.8/193000
x= 15.26 g of tin
A current of 5.29 A is passed through a Sn(NO₃)₂ solution for 1.30 hour, the amount of tin plated is 15.26 grams.
How do we calculate mass?Mass of any deposited susbatnce that is obtained by the passing of current will be calculated by using the Faraday's Law as:
W = ECT/F, where
W = required mass of deposited tin
C = current = 5.29 A
T = time period = 1.30hr = 4,680sec
F = faradays constant = 96500C
E = equivalent mass
Equivalent mass will be calculated as:
E = molar mass/charge on atom = 119/2 = 59.5 g/equ
On putting all these values in the above equation, we get
W = (59.5)(5.29)(4680) / 96500
W = 15.26 g
Hence mass of tin is 15.26 g.
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What element has the noble gas configuration [Ne]3s23p??
Answer:
Sulfur
Explanation:
The first ten electrons of the sodium atom are the inner-shell electrons and the configuration of just those ten electrons is exactly the same as the configuration of the element neon (Z = 10).
...
Noble Gas Configurations.
Element Name Sulfur
Symbol S
Atomic Number 16
Noble Gas Electron Configuration [Ne]3s23p4
How are the cells in our bodies organized? Cells are organized into ______ , _____
, and
_____ systems?
quick answer pls!
Answer:
Cell --> Tissues --> Organs ---> Organ System ---> Organism
Draw the Lewis structure for the polyatomic amide anion(NH2-). Be sure to include all resonance structures that satisfy the octet rule.
Answer:
Following are the solution to this question:
Explanation:
Following are the lewis structure of the [tex]NH_2^{-}[/tex]:
In the given element two H and one N are used, in which N has 5 valance electrons, and one H has 1 valence which is equal to 2 electrons valance. So, the graph for the given element is defined in the attached file.
The Lewis structure for the amide anion can be shown as in the given figure.
What is Lewis structure?
Lewis structures, also known as Lewis dot formulas, are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule.
In the given element two H and one N are used, in which N has 5 valance electrons, and one H has 1 valence which is equal to 2 electrons valance. The Lewis structure for the amide anion can be shown
Hence, this is the required answer.
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What reaction shows a compound breaking apart into separate substances?
A. A single-replacement reaction
B. A synthesis reaction
C. A double-replacement reaction
D. A decomposition reaction
Answer: The answer is decomposition reaction
Explanation: Hope this helps:)
Answer: D. decomposition reaction
Explanation:
Can someone help me please
NEED HELP ASAP!!! I just need to know the order
Which of the following shows correctly an ion pair and the correct formula for the ionic compound the two ions form?
A) Cu1+, O2–; CuO
B) Cr3+, I–; CrI
C) Sn4+, N3–; Sn4N3
D) Fe3+, O2–; Fe2O3
Answer:
D) Fe³⁺, O²⁻; Fe₂O₃
Explanation:
Option D shows correctly an ion pair and the correct formula for the ionic compound the two ions form.
Ion pairs of iron and oxygen react to form iron (III) oxide. The iron (III) oxide is one of the oxides of iron. The compound is usually attacked by acids and it is often called rust. It is used in the feedstock of the steel and iron industries. This means that the compound is used in the production of iron, steel, and many alloys.
Below are some equations:
4 Fe + 3 O₂→ 2 Fe₂O₃
Fe⁰ + 3O₂⁰ → Fe³⁺O₃²⁻
What pH scale number represents a neutral.
What pH scale number represents a neutral.
The answer is 7
How many minutes will it take to plate out 4.50 g of Cu from a solution of Cu(NO3)2 (aq) onto the cathode of an electrolytic cell when 8.00 A of current are used?
a. 28.5 min.b. 3.06 × 10^−9 min.c. 14.2 min.d. 1.82 × 10^3 min.
Answer:
a. 28.5 min
Explanation:
The computation of the number of minutes would it take to plate out is as follows:
Cu+2 +2e [tex]\rightarrow[/tex]Cu
The two moles of electrons could be generated for the copper i.e. deposited
Now
moles of copper is
= 4.5 ÷ 63.5
= 0.071
The 63.5 represents the atomic copper weight
Now mole of electrons deposited is
= 0.071 × 2
= 0.142
Now
quantitiy of electricity needed
= moles of electrons deposited × 96500
= 0.142 × 96500
= 13703 coulums
As per electricity quantity needed
= current × time(seconds)
= 13703 = 8 × t
t = 13703 ÷ 8
= 1713 seconds
= 1713 ÷ 60 minutes
=28.5 min
hence, the correct option is a.
When warm, less dense air ________, an area of low pressure is left behind.
A
rises
B
disappears
C
sinks
D
moves south
Answer:
B
disappears
Explanation:
Bbbbbbbbbb
Using the equation pH = -log [H+], determine the pH of a solution with a hydrogen ion concentration, or [H+], of 1x10-5. HINT: look at his HCl example!
pH = 7
pH = 1
pH = 5
pH = 2
Answer:
the answer is pH of 7 I don't no Hydrochloric hijinx work
The equation pH = -log [H+], the pH of a solution with a hydrogen ion concentration is 5. Hence option c is correct.
What is solution?Solution is defined as a continuous variation of two or more substances in their relative proportions up to what is known as the limit of solubility. Light beams do not disperse in the presence of a solution. In contrast, a suspension of particles might result in Tyndall or Rayleigh scattering. The amount of heat that is released or absorbed during the dissolving process is known as the enthalpy change of solution.
pH is defined as a measurement of how basic or acidic aqueous or other liquid solutions are. A solution's pH is a significant indicator of its chemical composition. The pH can affect how readily available nutrients are, how biological processes work, how bacteria behave, and how chemicals behave.
pH = -log[H+]
pH = -log[1.0 x 10⁻⁵]
pH = 5
Thus, the equation pH = -log [H+], the pH of a solution with a hydrogen ion concentration is 5. Hence option c is correct.
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ADD NOTE
O QUESTION
1. A student notices that the moon is full one evening. Which sequence of moon phases
will the student observe over the next eight days?
O
Full, waxing gibbous, new, waning crescent
O
Full, waning gibbous, first quarter, waning crescent
O
Full, new, waning gibbous
O
Full, waning gibbous, third quarter
CLEAR AL
oooo
Shifts in the rock layer locations cannot account for gaps in the rock record
true or false
Answer: That would be false because it is the contact between two layers representing a gap in the geologic record, usually from the erosion of the layers which would normally be expected to appear.
Explanation:
Have a good day
I hope this helps if not sorry :(
Stay motivated
Help with this question pleasee
Help lol please lol thank you :)
Answer:
45
Explanation:
Answer:
45 lol
Explanation:
What do the rows in the Periodic Table tell us?
Answer:
The rows tell you how many shells there are of the atom.
What is the total number of moles of oxygen atoms present in one mole of Mg(CIO3)2?
1. 5
2. 2
3. 3
4. 6
Answer:
Of oxygen would be 6 moles (4).
Explanation:
Since it is in a bracket you have to multiply 3 and tge 2 to get 6 oxygens.
What do you need to know about stock solution on order to calculate a dilution?
A 0.98 gram sample of a volatile liquid was heated to 348 k. the gas occupied 265 ml of space at a pressure of 0.95 atm. what is the molecular weight of this gas?
Answer:
The molecular weight is [tex]Z = 111.2 \ g/mol[/tex]
Explanation:
From the question we are told that
The mass of the sample is [tex]m = 0.98 \ g[/tex]
The temperature is [tex]T = 348 K[/tex]
The volume which the gas occupied is [tex]V = 265 \ ml = 265 *10^{-3} L[/tex]
The pressure is [tex]P = 0.95 \ atm[/tex]
Generally from the ideal gas equation we have that
[tex]PV = n RT[/tex]
Here n is the number of moles of the gas while the R is the gas constant with value [tex]R = 0.0821 \ atm \cdot L \cdot mol^{-1} \cdot K^{-1}[/tex]
[tex]n = \frac{PV}{ RT}[/tex]
=> [tex]n = \frac{ 0.95 * 265 *10^{-3} }{ 0.0821 * 348}[/tex]
=> [tex]n = 0.00881 \ mol[/tex]
Generally the molecular weight is mathematically represented as
[tex]Z = \frac{m}{n}[/tex]
=> [tex]Z = \frac{0.98 }{0.00881}[/tex]
=> [tex]Z = 111.2 \ g/mol[/tex]
What effect does the transfer of electrons have on the nuclei of the atoms involved?
Answer:
Chemical processes have no effect on the nucleus otherwise we would be in deep truble. GOOD LESSONS ♡
Fe + CuCl2 → FeCl2 + Cu
The type of reaction represented by the above equation is -
decomposition
synthesis
single-replacement
double-replacement
Answer:
the type is single replacement
The given reaction equation represents a single-replacement reaction.
Explanation:
A chemical reaction is defined as the rearrangement of the atoms of a substance to give a new substance as a product.A decomposition reaction is a type of chemical reaction in which a substance breakdowns into two or more than two simpler substances.ABC→ A+B+C
A synthesis reaction is a chemical reaction in which two or more compounds are combined together to form a single compound.A+B+C → ABC
A single-replacement reaction is defined as the chemical reaction in which an element replaces another element from its compound.AB+ C → AC + B
A double-replacement reaction is defined as the chemical reaction in which ions of compounds are exchanged.AB+ CD → AC + BD
Given:
[tex]Fe + CuCl_2 \rightarrow FeCl_2 + Cu[/tex]
To find:
The type of chemical reaction represented by the given equation.
Solution:
In the given reaction:
[tex]Fe + CuCl_2 \rightarrow FeCl_2 + Cu[/tex]
Iron is replacing copper from its compound which is copper(II) chloride to give iron(II) chloride and copper as a product.
So from this, we can conclude that the given reaction equation represents a single-replacement reaction.
Learn more about types of chemical reactions here:
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What are homogeneous mixture and heterogeneous mixture ?
Explanation:
"A homogeneous mixture has the same proportions of its components throughout any given sample and is also referred to as a solution. Conversely, a heterogeneous mixture has components of which proportions vary throughout the sample."
- Wikipedia
What gives yeast cells what it needed to reproduce and grow?
Answer:
Yeasts reproduce asexually by a process called budding (see Figure 8.2. 1 and Figure 8.2. 6). A bud is formed on the outer surface of the parent cell as the nucleus divides.
Explanation:
need help with this science question............
Answer:
18- H
19- D
20-G
21-A
(i think these are the answers)
Explanation:
How many moles of O2 are needed to burn 2.56 moles of CH3OH?
Answer:
[tex]n_{O_2}=3.84molO_2[/tex]
Explanation:
Hello!
In this case, since the combustion reaction of methanol is:
[tex]CH_3OH+\frac{3}{2} O_2\rightarrow CO_2+2H_2O[/tex]
In such a way, since there is 1:3/2 mole ratio between methanol and oxygen, we can compute the moles of oxygen that are needed to burn 2.56 moles of methanol as shown below:
[tex]n_{O_2}=2.56molCH_3OH*\frac{\frac{3}{2}molO_2}{1molCH_3OH} \\\\n_{O_2}=3.84molO_2[/tex]
Best regards!
................ is the organic molecule that is the main energy source for cell processes and is made with the energy released from the breakdown of glucose.
Answer:
ATP
Explanation:
it is made by breaking glucose down
Answer:
Once the last phosphate group is removed from the ATP molecule by hydrolysis, it will form ADP plus inorganic phosphate. ADP is a lower energy molecule. The release of energy during hydrolysis of ATP can be harnessed by the cell to do work. Living things continuously use ATP but it is renewable and can be recycled.
Explanation:
That was to your second question in the description part
science vocab (image attached)
Answer:
Solution-a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).
solvent- able to dissolve other substances.
solute- the minor component in a solution, dissolved in the solvent.
colloid- a homogeneous noncrystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance. Colloids include gels, sols, and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifuging like those in a suspension.
suspension- is a heterogeneous mixture that contains solid particles sufficiently large for sedimentation.
Explanation:
what substance has a mass of 9.5 grams and a volume of 2.1 cm^3?
SUBSTANCE.
Explanation:
Given parameters:
Mass = 9.5g
Volume = 2.1cm³
Unknown:
What kind of substance is this = ?
Solution:
To determine the kind of substance given, we need to find its density from the given parameters.
The density of a substance can tell us about such body.
Density is an intensive property and it is the mass per unit volume.
Density = [tex]\frac{mass}{volume}[/tex]
Now insert the parameters and solve;
Density = [tex]\frac{9.5}{2.1}[/tex] = 4.52g/cm³
The substance will most likely be a solid.
Describe a chemical property of iron that you observed.
Answer:
Iron can rust in damp conditions. Or, it can dissolve readily in dilute acids.
Explanation: