To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.110 M sodium hydroxide (NaOH) solution to a 25.0 g sample of the fluid and collects the solid nickel(I) hydroxide (Ni (OH2) product. When no more Ni(OH)2 is produced, he filters, washes and weighs it, and finds that 343. mg has been produced The balanced chemical equation for the reaction is: Ni2+(aq) + 2NaOH(aq) Ni(OH)2(s) + 2 Na.
What kind of reaction is this?
a. precipitation
b. acid-base
c. redox
Answers
Answer:
a. precipitation
Explanation:
In the reaction:
Ni²⁺(aq) + 2NaOH(aq)→ Ni(OH)₂(s) + 2 Na⁺
Nickel is precipitated as Ni(OH)₂ producing Na⁺ ions.
In a precipitation two soluble ions react with each other to produce an insoluble salt.
In our problem, Ni²⁺ is reacting with OH⁻ to produce Ni(OH)₂, an insoluble salt
The reaction is a precipitation
In an acid-base reaction, an acid reacts with a base to produce water and a salt. In this problem is a base reacting (NaOH) but there are no acids in the reaction.
And in a redox reaction an ion is been oxidized whereas the other is been reduced (Loosing electrons and gaining electrons).
As you can see, Ni²⁺ still with oxidation number of 2+ in Ni(OH)₂ and Na⁺ is always +1-. Thus, this is not a redox reaction.
Related Questions
What is the number of protons plus the number of neutrons in the nucleus of an atom equivalent to?
A: average atomic mass
B: mass number
C: number of electrons
D: atomic number
Answers
Answer:
b
Explanation:
b/c proton + neutron=mass number and
mass number - proton= neutron
Chlorofluorocarbons are ?
A. colorless, odorless gases that prevent red blood cells from carrying oxygen to the body
B. man-made chemicals containing chlorine and fluorine that cause
ozone molecules to break down
C. chemicals produced in factories that are used to prevent air
pollution
D. molecules containing chlorine and fluorine that block UV radiation
from reaching the Earth
Answers
Chlorofluorocarbons (CFCs) are synthetic compounds that contain chlorine, fluorine, and carbon. They were widely used in the past as refrigerants, propellants in aerosol products, and foam-blowing agents. CFCs have been found to have a detrimental effect on the Earth's ozone layer when released into the atmosphere. They can reach the stratosphere, where they undergo a chemical reaction facilitated by ultraviolet (UV) radiation, resulting in the release of chlorine atoms. These chlorine atoms then participate in a destructive cycle that breaks down ozone molecules, leading to ozone depletion. Due to their harmful impact on the ozone layer, the production and use of CFCs have been phased out or regulated under international agreements like the Montreal Protocol to protect the Earth's ozone layer.
Chlorofluorocarbons (CFCs) are man-made chemicals containing chlorine and fluorine that cause ozone molecules to break down. Thus, option B is the answer.
Chlorofluorocarbons are non-toxic, synthetic compounds that contain atoms of Chlorine, Fluorine and Carbon. They are commonly used in the manufacture of aerosol sprays and are also used as solvents and refrigerants. CFCs were first introduced in 1928 by General Motors Company for its refrigerators.
While CFCs are very safe to use in most applications and are stable in the lower atmosphere, these chemicals when released to the upper atmosphere can cause significant reactions. CFCs when released into the upper atmosphere can lead to the destruction of the ozone molecules followed by the release of the UV radiation into the atmosphere.
Thus, CFCs are man-made chemicals which cause ozone molecules to break down.
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6. How have dolphins adapted to undenvater lite
HELP!!!
Answers
Answer:
Dolphins have streamlined body shapes that are very hydrodynamic, allowing them to swim fast. Additionally, dolphins have very tight skin and adults have no body hair, both of which help to reduce drag on the marine mammals as they move through the water. Incidentally, dolphins have mated and gone in pairs, and then got more protection.
Please Help!
Your car has 1.95 gallons of gasoline (octane, d = 0.6916 g/mL), which reacts with oxygen
according to the balanced reaction below. Your car uses the energy produced by this reaction
at a rate of 115 kJ per second while traveling at a speed of 65 miles per hour. Calculate the
distance (in miles) the car can travel using this amount of octane.
2 C8H18(g) + 25 O2(g) -----> 16 CO2(g) + 18 H2O(g) ΔHrxn = -10,900 kJ
Answers
Answer:
38.3 miles
Explanation:
First, we convert 1.95 gallons to mililiters:
1.95 gallons * \(\frac{3.785 L}{1gallon}*\frac{1000mL}{1 L}\)= 7380.75 mLThen we calculate how many grams of octane are available for the reaction, using its density:
0.6916 g/mL * 7380.75 mL = 5104.53 g C₈H₁₈Now we convert octane grams into octane moles, using its molar mass:
5104.53 g C₈H₁₈ ÷ 114 g/mol = 44.78 mol C₈H₁₈Then we calculate how many kJ are produced from the combustion of 44.78 mol C₈H₁₈, if 2 moles produce 10900 kJ:
44.78 mol * 10900 kJ / 2 mol = 244032 kJWe calculate how many seconds is the car available to keep going, if it spends 115 kJ per second:
244032 kJ * 1 s / 115 kJ = 2122.02 sWe convert seconds to hours:
2122.02 / 3600 = 0.59 hoursFinally we calculate the distance:
65 mi/hour * 0.59 hour = 38.3 miWhat state of matter is every compound in for the chemical reaction? CH4 (g)+2 0₂ (g) -> CO₂(g) + 2 H₂0 (g
Answers
Answer:
CH4 (g) and O2 (g) are both in the gaseous state, while CO2 (g) and H2O (g) are also in the gaseous state.
In the above reaction, the reactants are in the gaseous state, and the products formed are also in the gaseous state.
Every compound in a chemical reaction can be in any state of matter like solid, liquid, or gas. In the reaction of methane and oxygen, the initial state of the reactants is in the gaseous form. The chemical reaction of methane and oxygen is given by the equation CH4 (g) + 2 O2 (g) -> CO2 (g) + 2 H2O (g).Here, methane and oxygen are the reactants, and carbon dioxide and water are the products. Methane (CH4) and oxygen (O2) react together in the presence of a spark or heat to produce carbon dioxide (CO2) and water (H2O).In the reaction, the methane gas combines with oxygen gas, which causes the release of heat energy and forms carbon dioxide gas and water vapor. Methane gas is a colorless and odorless gas that burns cleanly and is one of the primary components of natural gas.
The oxygen gas required for the reaction is available in the atmosphere. Carbon dioxide is a colorless gas with a faint odor and taste and is a significant component of the Earth's atmosphere. Water is a colorless, odorless, and tasteless liquid that is essential to life.The state of matter of every compound in a chemical reaction can change depending on the conditions in which the reaction occurs. For instance, a substance that is in the solid state at a lower temperature may melt into a liquid or boil into a gas at a higher temperature. Similarly, a liquid may freeze into a solid or vaporize into a gas under different conditions.
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According to the collision theory, when can a chemical reaction occur? (3 points)
A. When enough activation energy is added to correct the orientation of the particle collisions
B. When reactants collide with enough energy to intersect their valence shells and form new bonds
C. When reactants collide with enough mass to form new bonds and break apart the reactants
D. When the proper catalyst is added to break the chemical bonds in the reactants
Answers
The presence of a catalyst, as mentioned in option D, can provide an alternative reaction pathway with lower activation energy, but it is not a necessary condition for a chemical reaction to occur according to the collision theory. Option D
According to the collision theory, a chemical reaction can occur under the following conditions:
When reactants collide: For a chemical reaction to occur, the reactant particles must come into contact with each other. Collisions between reactant molecules are necessary to initiate the reaction. This point aligns with option B, as reactants colliding with enough energy is an essential aspect of the collision theory.
When collisions have enough energy: Not all collisions between reactant particles result in a chemical reaction. According to the collision theory, a reaction can occur only if the colliding particles have sufficient energy to overcome the activation energy barrier.
This means that the collision should provide enough energy to break the existing bonds in the reactant molecules, allowing new bonds to form. This point supports option B, as collisions with enough energy to intersect valence shells and form new bonds are necessary for a reaction to take place.
When the proper orientation is achieved: In addition to having enough energy, the reactant molecules must collide with the correct orientation for a chemical reaction to occur. The collision should bring the reactive parts of the molecules into contact with each other to allow bond formation or breaking.
This point supports option A, as the correct orientation of the reactant particles during collisions is crucial for the reaction to proceed successfully.
Option D
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name the chemical compound
Answers
Answer:
hydrochloric acid
Explanation:
chemical compound any substance composed of identical molecules consisting of atoms
Please if you know the answer tell me thank you.
Answers
Bile increases the surface area of the fats so that it can be digested. Option A
How does bile help in the digestion of food?The liver produces bile, a greenish-yellow liquid that is kept in the gallbladder. It is critical for the small intestine's involvement in the breakdown of lipids.
Hormones tell the gallbladder to release bile into the duodenum, which is the first section of the small intestine, when food with fat enters the small intestine. Bile salts, which serve as emulsifiers, are found in bile.
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Calculate the pH of a [0.000765) M solution of KOH
Answers
Answer:
pH=10.88
Explanation:
Hello,
In this case, since potassium hydroxide is completely dissociated as shown below:
\(KOH\rightarrow K^++OH^-\)
For which we understand it is a base, more specifically, a strong base; it means that the concentration of the OH⁻ equals the concentration of the potassium hydroxide, that is 0.000765M, for that reason we can directly compute the pOH:
\(pOH=-log([OH^-])=-log(0.000765)=3.12\)
Finally, since the pOH and the pH are related by:
\(pOH+pH=14\)
The pH turns out:
\(pH=14-3.12\\pH=10.88\)
Best regards.
Assume that pure water coexists with its vapor at some temperature in a closed container. What are chemical potentials in water and in vapor and their main contributions in both phases
Answers
The level of water in a measuring cylinder rose to 90cm³ mark when a piece of stone whose mass is 10 g was dropped in the measuring cylinder. the initial volume of the water as 50 cm³ calculate the density of the rock. show working ( means show your calculations of how you solved it :] )
pleaae this is under science but it's not giving me that option so i choose chemistry
Answers
Answer:
o.25g/cm3Explanation:
initial volume(V1)= 50cm3
final volume(V2)= 90cm3
volume of stone(i.e, level of water displaced)= V2 - V1
= 40cm3
mass of stone= 10g
density= mass/volume
= 10g/40cm3
= 0.25g/cm3
please helppp asaappppppp
Answers
Answer:
B. s, p, d, f
Explanation:
These things are often referred to as suborbitals and you normally have s,p,d,f.
S has 1 two orbitals
P has 3 orbitals
D has 5 orbitals
F has 7 orbitals
and each orbital can house 2 electrons
The economy of each region was shaped by all of the following factors, except:
A. Geography
B. Climate
C. Language
D. Population
Answers
Answer:
Language
Explanation:
this is very obvious not to be mean
write the structural formula for 2-bromo-3-chloro-4,4-dimethylpentanal
Answers
Answer:
Br-CH2-CH(CH3)2-C(Cl)H-CH(CH3)2-CHO
Explanation:
The molecule has a total of 14 carbon atoms, 13 hydrogen atoms, and 1 bromine atom. The carbon atoms are arranged in a chain with a methyl group attached to the second carbon atom, a chlorine atom attached to the third carbon atom, and two methyl groups attached to the fourth carbon atom. The fifth carbon atom has a carbonyl group attached to it.
The molecule is an aldehyde, which means that it has a carbonyl group (C=O) at the end of the chain. The carbonyl group is polar, and the oxygen atom has a partial negative charge. The hydrogen atom has a partial positive charge. This polarity makes the aldehyde group susceptible to nucleophilic attack.
The bromine and chlorine atoms are both electrophilic, which means that they have a partial positive charge. This makes them susceptible to nucleophilic attack.
The methyl groups are non-polar and do not have any significant reactivity.
The molecule is a chiral molecule, which means that it has a mirror image that is not superimposable on itself. This is because the carbon atom with the carbonyl group is attached to four different groups.
The molecule is a liquid at room temperature and has a strong odor. It is used in a variety of products, including perfumes, flavorings, and plastics.
Calculate the number of moles in 41.8 g of MgCl2
Answers
There are 0.44 moles of MgCl2 in 41.8 g of the compound.
There are 0.44 moles of MgCl2 in 41.8 g of the compound.
The molar mass of MgCl2 can be calculated as:
MgCl2 = 1 x Mg + 2 x Cl = 24.31 g/mol + 2 x 35.45 g/mol = 95.21 g/mol
To calculate the number of moles of MgCl2 in 41.8 g, we can use the formula:
moles = mass / molar mass
Substituting the values, we get:
moles = 41.8 g / 95.21 g/mol = 0.44 mol
Therefore, there are 0.44 moles of MgCl2 in 41.8 g of the compound.
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Answer: There are 0.4397 moles of MgCl2 in 41.8 g of MgCl2
Explanation: To calculate the number of moles of MgCl2 in 41.8 g, we need to know the molar mass of MgCl2. The molar mass of MgCl2 can be calculated by adding the atomic masses of Mg and Cl:
Mg: 24.31 g/mol
Cl: 35.45 g/mol
MgCl2: 24.31 g/mol + (2 x 35.45 g/mol) = 95.21 g/mol
Now, we can use the formula:
Number of moles = mass / molar mass
Number of moles = 41.8 g / 95.21 g/mol
Number of moles = 0.4397 mol
Therefore, there are 0.4397 moles of MgCl2 in 41.8 g of MgCl2.
b. How many grams of H20 is needed to react with 20.0 grams of P4010
P4010 + 6H20 -----> 4H3PO4
Answers
20
12 3.2
12bw
7. A certain music box ha the shape of a cube. Ea
cm long. What is the surface area of the box?
8. Find the amount of tin needed to make a milk to
cm and a height of 5cm.
9. Angelo is wrapping a present. The box he is using is
of 10 cm, a width of 7 cm and a height of 5 cm. Find
gift wrapper he needs to wrap the entire box?
10.
The side of the a cube measures 12 cm. Sc
a
A student adds sugar, spices, and salt to a bowl of peanuts and stirs them together. What has the student made?
a compound
a substance
a mixture
a solution
Answers
Answer:
A mixture
Explanation:
Since they add multiple ingrediants and then stir them that makes it a mixture because they are mixing it.
Hope this helps :)
HQ5.40
Homework Answered Due Today, 11:59 PM
The reaction 3H₂(g) + N₂(g) → 2NH3(g) has an enthalpy of reaction of -92.6 kJ/mol. If 1 g of hydrogen and 2 g of nitrogen are
reacted, how much heat is produced (kJ)?
Answers
The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ
How do i determine the heat energy produced?First, we shall obtain the limiting reactant. Details below:
3H₂ + N₂ -> 2NH₃
Molar mass of N₂ = 28 g/molMass of N₂ from the balanced equation = 1 × 28 = 28 g Molar mass of H₂ = 2 g/molMass of H₂ from the balanced equation = 3 × 2 = 6 gFrom the balanced equation above,
28 g of N₂ reacted with 6 g of H₂
Therefore,
2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂
We can see that only 0.43 g of H₂ is needed in the reaction.
Thus, the limiting reactant is N₂
Finally, we the amount of heat energy produced. Details below:
3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ
Molar mass of N₂ = 28 g/molMass of N₂ from the balanced equation = 1 × 28 = 28 gFrom the balanced equation above,
When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.
Therefore,
When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ
Thus the heat energy produced from the reaction is -6.61 KJ
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True or false
Bases will have a relatively high concentration of hydroxide ions and a pH around 10.
Answers
Answer:
false
Explanation:
It is because the pH for Hydroxide ions is 7
Answer:
True
Explanation:
Acids have a low concentration of hydroxide ions and a pH of 1-6, while bases have a high concentration of hydroxide ions and a pH of 8-14
How many molecules of CO2 at standard temperature and pressure in 5.4 moles of CO2
Answers
Answer:
3.25×10²⁴ molecules.
Explanation:
From the question given above, the following data were obtained:
Number of mole of CO₂ = 5.4 moles
Number of molecules of CO₂ =?
The number of molecules of CO₂ in 5.4 moles can be obtained as follow:
From Avogadro's hypothesis,
1 mole of CO₂ = 6.02×10²³ molecules
Therefore,
5.4 moles of CO₂ = 5.4 × 6.02×10²³
5.4 moles of CO₂ = 3.25×10²⁴ molecules
Thus, 5.4 moles of CO₂ contains 3.25×10²⁴ molecules.
Which statement best explains an atomic emission spectrum?
4
As electrons transition between different energy levels within a wavelength, they make their own
unique spectrum of visible light.
As electrons transition between different energy levels within an atom, they release or absorb energy.
The released energy forms a spectrum of electromagnetic energy specific to each element.
As wavelengths transition between different transmittance levels within an atom, the visible colors
show on a scale.
As electrons transition between different energy levels within a frequency, they make their own unique
spectrum of visible color.
Answers
An atomic emission spectrum is best described as an electronic transition between different energy levels within an atom, thereby releasing or absorbing energy.
What is an emission spectrum?Emission spectrum is defined as a spectrum of a chemical compound or substance composed of frequencies of electromagnetic radiation. Radiations which are emitted while electron make transition from higher to lower energy level.
Energy of photon is equal to the difference between the two energy states . There are many possible electronic transitions in an atom and every transition has a specific wavelength.
Collection of different transitions with respect to different wavelengths makes up an emission spectrum.Emission spectrum of each element is unique and therefore spectroscopy is used to identify elements which are present in different substances.
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anyone know the name of this structure please and thank you
Answers
Answer:
The graph shown is not a function because points (-1,2) and (-1,0) have the same x value.
Explanation:
Can someone please help me with chemistry?
Show steps+ explanation
Answers
The student expected to get exactly 3.5 grammes of Chromium (III) oxide from adding 1.75 grammes of Chromium trinitrate and 1.75 grammes of Sodium oxide. To create the needed amount of Chromium oxide.
How are actual yields in grammes calculated?To get the mass per mole, divide the reactant's mass by its molecular weight. As an alternative, we might multiply the millilitres of the reactant solution by the grammes per millilitre of the liquid solution. Next, divide the outcome by the reactant's molar mass.
This is because the chemical equation for the reaction between Chromium trinitrate and Sodium oxide is not balanced to produce Chromium(III) oxide.
2Cr(NO₃)₃ + 3Na₂O → Cr₂O₃ + 6NaNO₃
From this balanced equation, we can see that for every 2 moles of Chromium trinitrate, we need 3 moles of Sodium oxide to produce 1 mole of Chromium(III) oxide. This means that the amounts of Chromium trinitrate and Sodium oxide required to produce 3.5 grams of Chromium(III) oxide are:
Amount of Chromium trinitrate = (2/3) x (3.5 grams / molar mass of Chromium trinitrate) = 1.53 grams
Amount of Sodium oxide = (3/2) x (3.5 grams / molar mass of Sodium oxide) = 2.26 grams
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Chemistry Help Please! Worth a lot of points!
1. Joseph Priestly was the first scientist to be able to prepare pure oxygen gas. He did this by heating mercuric oxide as shown in the reaction below. Answer the question related to the reaction.
2HgO(s) = 2Hg(l) + O2(g)
a.What volume of oxygen gas would be produced at STP through the decomposition of 5.36 grams of HgO? It is not collected over water!
b. What volume of oxygen gas would be produced at 23o and 0.975 atm by the decomposition of 5.36 grams of HgO?
c. What volume of oxygen gas would be collected over water at 23oC and 0.975 atm by the decomposition of 5.36 grams of HgO?
2. How many grams of water will form through the reaction of 550 mL of 2.5 M HCl and an excess amount of Ca(OH)2?
Ca(OH)2(aq) + 2HCl(aq) = CaCl2(aq) + 2H2O(l)
a. How many grams of calcium chloride will form if 250 mL of 2.0 M Ca(OH)2 reacts with 350 mL of 2.5 M HCl? Make sure to determine the limiting reagent!
3. Sam conducted an experiment where he reacted 5.0 grams of magnesium with an excess amount of oxygen gas to form magnesium oxide (MgO). When he conducted this in the lab, he obtained 8.06 grams of magnesium oxide.
a. Write and balance the chemical reaction.
b. Use stoichiometry to predict how many grams of magnesium oxide should form.
c. What is the theoretical yield?
d. What is the actual yield?
e. Calculate the percent yield.
4. Na(s) + Br2(L) = NaBr(s) (not balanced)
b.If 3.05 grams of sodium react with 10.0 grams of diatomic bromine, what is the excess reagent AND how many moles of excess reagent are present after the reaction?
c. How many grams of sodium bromide are formed?
Answers
Answer:
A.
1. a. 11.28L O2
b. 24.3L O2
c. 19.83L O2
2. a. 5.6 grams CaCl2
3. a. 2Mg + O2 = 2MgO
b. 8.06 grams MgO
c. 8.06 grams MgO
d. 8.06 grams MgO
e. 100%
4. a. 2Na + Br2 = 2NaBr
b. Excess reagent: Bromine; 0.5 moles
c. 10.6 grams NaBr
Whoever answers I’ll mark brainliest
Answers
Answer: c. electrons, negative
Explanation:
Question 1 of 10
How is each element represented in the periodic table?
A. Each element is in an order based on alphabetical order.
B. Each element is listed as an abbreviation of the first letters of its
DE ME
C. Each element is represented by a one or two-letter symbol.
D. Each element is listed in its own box based on when it was
discovered
Answers
Answer:
C
Explanation:
A- incorrect, not in alphabetical order
B- incorrect, symbol for salt in NA not SA
C- correct
D- incorrect, not based on discovery
Each element represented in the periodic table is represented by a one or two-letter symbol.Hence , Option (C) is Correct.
What is Periodic Table ?
The periodic table, also known as the periodic table of the elements, is a tabular display of the chemical elements.
It is widely used in chemistry, physics, and other sciences, and is generally seen as an icon of chemistry.
Each element represented in the periodic table is represented by a one or two-letter symbol.Hence , Option (C) is Correct.
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How do you solve this ??
Answers
Answer:
Option D. 400 mmHg
Explanation:
The following data were obtained from the question:
Mole of He (nHe) = 0.04 mole
Mole of Ne (nNe) = 0.06 mole
Total pressure = 10³ mmHg
Partial pressure of He =.?
Next, we shall determine the total number of mole in the reaction vessel.
This can be obtained as follow:
Mole of He (nHe) = 0.04 mole
Mole of Ne (nNe) = 0.06 mole
Total mole =?
Total mole = nHe + nNe
Total mole = 0.04 + 0.06
Total mole = 0.1
Next, we shall determine the mole fraction of He.
This can be obtained as follow:
Mole fraction = mole of gas /total mole
Mole of He (nHe) = 0.04 mole
Total mole = 0.1
Mole fraction of He =.?
Mole fraction of He = nHe/total mole
Mole fraction of He = 0.04/0.1
Mole fraction of He = 0.4
Finally, we shall determine the partial pressure of He as follow:
Partial pressure = mole fraction x total pressure
Mole fraction of He = 0.4
Total pressure = 10³ mmHg
Partial pressure of He =.?
Partial pressure of He = 0.4 x 10³
Partial pressure of He = 400 mmHg.
Therefore, the partial pressure of He is 400 mmHg.
PLEASE ANSWER!!!!!!!!
Scientists observe the polyatomic ion nitrate forming a compound with unknown element 'A' and predict that the chemical formula could be A2NO3. One of the scientists, Nadeen, states that this chemical formula would be impossible. Is Nadeen correct? Explain why or why not.
Answers
Answer:
knflnvwlknnffenfkw
Explanation:
Mass is a(n) ____ property.
Answers
Answer:
mass is an extensive property..
How does a wave get taller as
it gets closer to shore?
A. The wind blows harder making the wave
get faster.
B. The shallow water at the bottom of the
wave makes the wave length smaller.
C. The wind blows harder making the wave
slow.
D. The deeper water at the bottom of the
wave makes the wave get faster.
Answers
The reason why a wave get taller as it gets closer to shore is that the shallow water at the bottom of the wave makes the wave length smaller. Option B
What is a wave?A wave is a disturbance that occurs along a medium which transmits energy. Now we now that waves travel from place to place. The horizontal distance that is travelled by a wave is what we call the wavelength of the wave.
As the wave approaches the shore, the wave tends to slow down because it is dragged from beneath. In the process, the wave grows taller. Thus, the reason why a wave get taller as it gets closer to shore is that the shallow water at the bottom of the wave makes the wave length smaller. Option B
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