Answer:
At equilibrium, the forward and backward reaction rates are equal.
The forward reaction rate would decrease if [tex]\rm O_2[/tex] is removed from the mixture. The reason is that collisions between [tex]\rm SO_2[/tex] molecules and [tex]\rm O_2\![/tex] molecules would become less frequent.
The reaction would not be at equilibrium for a while after [tex]\rm O_2[/tex] was taken out of the mixture.
Explanation:
EquilibriumNeither the forward reaction nor the backward reaction would stop when this reversible reaction is at an equilibrium. Rather, the rate of these two reactions would become equal.
Whenever the forward reaction adds one mole of [tex]\rm SO_3\, (g)[/tex] to the system, the backward reaction would have broken down the same amount of [tex]\rm SO_3\, (g)\![/tex]. So is the case for [tex]\rm SO_2\, (g)[/tex] and [tex]\rm O_2\, (g)[/tex].
Therefore, the concentration of each species would stay the same. There would be no macroscopic change to the mixture when it is at an an equilibrium.
Collision TheoryIn the collision theory, an elementary reaction between two reactants particles takes place whenever two reactant particles collide with the correct orientation and a sufficient amount of energy.
Assume that [tex]\rm SO_2\, (g)[/tex] and [tex]\rm O_2\, (g)[/tex] molecules are the two particles that collide in the forward reaction. Because the collision has to be sufficiently energetic to yield [tex]\rm SO_3\, (g)[/tex], only a fraction of the reactions will be fruitful.
Assume that [tex]\rm O_2\, (g)[/tex] molecules were taken out while keeping the temperature of the mixture stays unchanged. The likelihood that a collision would be fruitful should stay mostly the same.
Because fewer [tex]\!\rm O_2\, (g)[/tex] molecules would be present in the mixture, there would be fewer collisions (fruitful or not) between [tex]\rm SO_2\, (g)[/tex] and [tex]\rm O_2\, (g)\![/tex] molecules in unit time. Even if the percentage of fruitful collisions stays the same, there would fewer fruitful collisions in unit time. It would thus appear that the forward reaction has become slower.
Equilibrium after ChangeThe backward reaction rate is likely going to stay the same right after [tex]\rm O_2\, (g)[/tex] was taken out of the mixture without changing the temperature or pressure.
The forward and backward reaction rates used to be the same. However, right after the change, the forward reaction would become slower while the backward reaction would proceed at the same rate. Thus, the forward reaction would become slower than the backward reaction in response to the change.
Therefore, this reaction would not be at equilibrium immediately after the change.
As more and more [tex]\rm SO_3\, (g)[/tex] gets converted to [tex]\rm SO_2\, (g)[/tex] and [tex]\rm O_2\, (g)[/tex], the backward reaction would slow down while the forward reaction would pick up speed. The mixture would once again achieve equilibrium when the two reaction rates become equal again.
I've been stuck on this problem for 23456789 minutes please help!!
Answer:
C₄H₆O₃ + H₂O ⇒ 2C₂H₄O₂
Explanation:
Given:
C₄H₆O₃ + H₂O ⇒ C₂H₄O₂
Find:
Balance equation
Computation:
C₄H₆O₃ + H₂O ⇒ C₂H₄O₂
C₄H₆O₃ + H₂O ⇒ 2C₂H₄O₂
Number of atom should be equal in LHS and RHS.
So,
We have to multiply 2 in RHS to get equal number of atom.
How much voltage does 4 oranges produce?
Answer:
For generating electricity, there must be a power source present and a total circuit. In order to generate electricity from citcrus fruit circuit, it is necessary to have materials like wire, a small bulb, lemon fruit, and two metal elements. The power source in this circuit is the lemon fruit. The metals that are taken here in this experiment are zinc and copper.
Explanation:
The rate of consumption of B in the reaction A + 3 B → C + 2 D is 2.7 mol dm−3 s−1. State the reaction rate, and the rates of formation or consumption of A, C, and D.
Answer:
[tex]\frac{1}{-1} \frac{d[A]}{dt} =\frac{1}{-3} \frac{d[B]}{dt}=\frac{1}{1} \frac{d[C]}{dt}=\frac{1}{2} \frac{d[D]}{dt}[/tex]
[tex]\frac{d[A]}{dt} =-0.9\frac{mol}{dm^3*s} \\\\ \frac{d[C]}{dt} =0.9\frac{mol}{dm^3*s}\\\\ \frac{d[D]}{dt} =1.8\frac{mol}{dm^3*s}[/tex]
Explanation:
Hello!
In this case, since the reaction rate for all the species are written by considering how they change and the coefficients they have in the reaction, for A, B, C and D we can write:
[tex]\frac{1}{-1} \frac{d[A]}{dt} =\frac{1}{-3} \frac{d[B]}{dt}=\frac{1}{1} \frac{d[C]}{dt}=\frac{1}{2} \frac{d[D]}{dt}[/tex]
Whereas the numeric denominators stand for the coefficients balancing the reaction. In such a way, by using the rate of consumption of B, we can compute the rate of consumption of A and the rates of formation of both C and D as follows:
[tex]\frac{d[A]}{dt} =\frac{-1}{-3} \frac{d[B]}{dt}=\frac{1}{3}*-2.7\frac{mol}{dm^3*s} \\\\ \frac{d[A]}{dt} =-0.9\frac{mol}{dm^3*s} \\\\\\ \frac{d[C]}{dt} =\frac{1}{-3} \frac{d[B]}{dt}=\frac{1}{-3}*-2.7\frac{mol}{dm^3*s} \\\\ \frac{d[C]}{dt} =0.9\frac{mol}{dm^3*s}\\\\\\ \frac{d[D]}{dt} =\frac{2}{-3} \frac{d[B]}{dt}=\frac{2}{-3}*-2.7\frac{mol}{dm^3*s} \\\\ \frac{d[D]}{dt} =1.8\frac{mol}{dm^3*s}[/tex]
Whereas the rates of consumption are negative and the rates of formation positive.
Best regards!
3. Which of the following statements is correct?
X Х
1 doubling the pressure of a gas doubles its volume
2. 2.00 L of air at 227°C has twice the pressure of the same 2.00 L of air at -
23°C
3. 2.00 L of air at 100°C has twice the pressure of the same 2.00 L of air at
50°C
4. halving the pressure of a gas halves its volume
Answer:
3. 2.00 L of air at 100°C has twice the pressure of the same 2.00 L of air at 50°C
Explanation:
1) doubling the pressure of a gas doubles its volume
This is incorrect because by increasing the pressure volume is going to be decreased.
2) 2.00 L of air at 227°C has twice the pressure of the same 2.00 L of air at 23°C
This is also incorrect because 2 L air at 227 °C will have the pressure more than twice time as compared to the 2L air at 23°C.
3. 2.00 L of air at 100°C has twice the pressure of the same 2.00 L of air at 50°C
This is correct;
According to Gay-Lussac Law,
The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.
Mathematical relationship:
P₁/T₁ = P₂/T₂
thus, by increasing the temperature pressure is also goes to increase in the same ratio.
4. halving the pressure of a gas halves its volume
This is incorrect because halving the pressure of gas increasing its volume.
Which of the following is an example of a velocity?
30 miles per hour
30 miles per hour North
30 miles
30 hours
Answer:
30 miles per hour North
Explanation:
Velocity can be defined as the rate of change in displacement (distance) with time. Velocity is a vector quantity and as such it has both magnitude and direction.
Mathematically, velocity is given by the equation;
[tex]Velocity = \frac{distance}{time}[/tex]
[tex]V = \frac{d}{t}[/tex]
Hence, 30 miles per hour North is an example of a velocity because it is a vector quantity that has both magnitude and direction.
At what temperature does 1.00 atm of He gas have the same density as 1.00 atm?
Answer:
The answer is "[tex]2.73 \times 10^3 \ K[/tex] ".
Explanation:
Please find the complete question in the attachment.
The Formula for Ideal gas:
[tex]\to PV = nRT \\\\[/tex]
[tex]= ( \frac{m}{M})RT[/tex]
[tex]\to Density\ \rho = \frac{m}{V} = \frac{PM}{RT}[/tex]
[tex]\to P= pressure\\\\\to V = volume\\\\ \to n = moles\ of \ gas \\\\\to R = molar \ gas \ constant\\\\ \to T = temperature\\\\ \to m = mass \\\\ \to M = molar \ mass[/tex]
[tex]\to P(Ar) = P(He) = 1.00 atm\\\\\to T(Ar) = ?\\\\ T(He) = 273.2 \ K\\\\\to M(Ar) = 39.948 \ \frac{g}{mol}\\\\ \to M(He) = 4.0026 \ \frac{g}{mol}\\\\\to \rho(Ar) = \rho(He)\\\\\bold{Formula: } \\\\ \to \frac{P(Ar)M(Ar)}{RT(Ar)} = \frac{P(He)M(He)}{RT(He)}\\\\\to \frac{1.00 \times 39.948}{(0.08206 \times T(Ar))} = \frac{1.00 \times 4.0026}{(0.08206 \times 273.2)}\\\\ \to T(Ar) = 2.73 \times 10^3 \ K[/tex]
Help needed urgently
Answer:
Empirical formula = CH3O
Molecular formula = C2H6O2
which is the limiting reactant when 5.00g of H2 and 10.00g of O2 react and form water?
Explanation:
The reaction expression is given as:
2H₂ + O₂ → 2H₂O
The limiting reactant is the reactant in short short supply in the given reaction.
To find the limiting reactant we use the number of moles.
Mass of H₂ = 5g
Mass of O₂ = 10g
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of H₂ = 2(1) = 2g/mol
Molar mass of O₂ = 2(16) = 32g/mol
Number of moles H₂ = [tex]\frac{2}{5}[/tex] = 0.4mole
Number of moles O₂ = [tex]\frac{10}{32}[/tex] = 0.3mole
From the balanced reaction equation:
2 mole of H₂ reacts with 1 mole of O₂
0.4 mole of H₂ reacts with 0.2 mole of O₂
But we are given 0.3 moles of O₂, so the limiting reactant is H₂ because oxygen gas is in excess
The limiting reactant when 5.00g of H₂ and 10.00g of O₂ react is Oxygen (O₂)
StoichiometryFrom the question,
We are to determine the limiting reactant
First, we will write the balanced chemical equation for the reaction
The balanced chemical equation for the reaction is
2H₂ + O₂ → 2H₂O
This means 2 moles of H₂ reacts with 1 mole of O₂ to produce 2 moles of H₂O
Now, we will determine the number of moles of each reactant present
For H₂Mass = 5.00 g
Molar mass = 2.0 g/mol
Using the formula,
[tex]Number\ of \ moles = \frac{Mass}{Molar\ mass}[/tex]
Number of moles of H₂ = [tex]\frac{5.00}{2.0}[/tex]
Number of moles of H₂ = 2.50 moles
For O₂Mass = 10.00 g
Molar mass = 32.0 g/mol
Then,
Number of moles of O₂ = [tex]\frac{10.00}{32.0}[/tex]
Number of moles of O₂ = 0.3125 mole
Now,
Since 2 moles of H₂ reacts with 1 mole of O₂
Then,
0.625 moles of H₂ reacts with 0.3125 mole of O₂
This means part of the H₂ reacts with all of the O₂. Since all the O₂ reacted, then O₂ is the limiting reactant.
Hence, the limiting reactant when 5.00g of H₂ and 10.00g of O₂ react is Oxygen (O₂).
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Calculate the temperature, in K, of 2.20 moles of gas occupying 4.10 L at 2.82 atm.
Answer:
64 k
Explanation:
To figure this out you need to start with the ideal gas equation:
P
⋅
V
=
n
⋅
R
⋅
T
You have P (3.30 atm), V (3.5 l), n (2.20 moles) and you can look up the gas constant, R (0.082057 (latm)/(molK)).
We simply rearrange the ideal gas equation to get T by itself:
T
=
P
⋅
V
n
⋅
R
Then simply plug in the values you were given, making sure that the units are in liters, atmospheres, and moles (which they are, in this case):
T
=
3.30
atm
⋅
3.5
l
2.20
moles
⋅
0.082057
(l*atm)/(mol*K)
=
63.9799
K
Since volume was only given to 2 significant figures, we can only report 2 significant figures for our answer:
64 K.
Give the mechanistic symbols (SN1, SN2) that are most consistent with each other the following statements:a) Methyl halides react with sodium ethoxide in ethanol only by this mechanism.b) Unhindered primary halides react with sodium ethoxide in ethanol mainly by this mechanis.c) The substitution product obtained by solvolysis of tert- butyl bromide in ethanol arises by this mechanism.d) Reactions proceeding by this mechanism are stereospecfic.e) Reactions proceeding by this mechanism involve carbocation intermediates.f) this mechanism is most likely to have been involved when the products are found to have a different carbon skeleton from the substrate.g) Alkyl iodides react faster than alkyl bromides in reactions that proceed by these mechanisms.
Answer:
very comfusing
Explanation:
The force that gravity exerts on an object is
Question 7 options:
It's Acceleration
It's Weight
It's Mass
Constant
Answer:
gravity exerts on it's mass brother
_______ is the ability of the body to fight infection via antibodies or specialized cells.
O immunity
O antibiotics
O pathogens
O breathing
Answer:
Immunity
Explanation:
2. What structure produces bile?
3. What is the purpose of bile?
4. List the order food passes through your body.
5. List three accessory digestive organs.
Answer:
2. It is made and released by the liver and stored in the gallbladder
3. It breaks down fats into fatty acids, which can be taken into the body by the digestive tract. So it helps with digestion
4. Order would go: Mouth. Esophagus. Stomach. The small intestine. Colon (large intestine) Rectum.
5. The salivary glands, liver, gallbladder, and pancreas are not part of the digestive tract, but they have a role in digestive activities and are considered accessory organs.
Explanation:
Bile is produced by the liver and held in the gallbladder before being released into the small intestine to aid in fat digestion. Food travels from the mouth to the esophagus, stomach, small intestine, large intestine, rectum, and anus, respectively.
Bile is a greenish-yellow fluid that is stored in the gallbladder and released into the small intestine when needed.
Answers to the given questions are as follows:
2. The structure that produces bile is liver produces bile.
3. The purpose of bile is to help digest fats in the small intestine.
4. The order that food passes through your body is mouth, esophagus, stomach, small intestine, large intestine (colon), rectum, and anus.
5. The three accessory digestive organs are the pancreas, gallbladder, and salivary glands.
Therefore, above are the mentioned answers to the given questions.
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Which represents the ionization of a strong electrolyte?
Answer:
Explanation:
Strong electrolytes completely ionize when dissolved, and no neutral molecules are formed in solution. Since NaCl is an ionic solid (s), which consists of cations Na+ and anions Cl−, no molecules of NaCl are present in NaCl solid or NaCl solution. The ionization is said to be complete.
Answer:
K3PO4(s) ----- 3K+(aq) + PO43–(aq)
Explanation:
edge 2021
How do you know the number of valence electrons for those elements?
Answer:
For neutral atoms, the number of valence electrons is equal to the atom's main group number. The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.
Explanation:
hope this help
12. Balance the following redox reaction by ion - electron method -
Cr07- (aq) + SO, (g) -- Crd+ (aq) + S0x2 (aq) (acidic medium)
(
hope this will help you mate! :)
shadow
All matter basically looks the same. Is this statement true or false?
Answer
false
Explanation:
sorry I tbought i put false I hope I helped ....
The answer is false! All matters do not look the same, even if it had a visible look the answer would be false!
Why is the answer false?
There is lots of matters, Like liquids:
(Water, Juice, Milk, etc.)
All Water, Juice, & Milk looks different, Maybe SOME look the same, but the question is saying "All", Most of all questions is wrong.
Therefore the answer is false!
Learn more about matter on www.Bing/LearnMore/Subject="Matter%20Learning"/Search.com
Need more of my help? Put #AJQ in your questions and I will come fast!
In the complex ion [Cr(C204)2(H20)2]-, what is the oxidation number of Cr?
O A. 3+
O B. 1+
O C.2+
OD. 2-
O E. 1-
Answer:
A. 3+
Explanation:
In the complex, the global charge is -1.
There are 2 molecules of H₂O but water is a neutral ligand that doesn't contribute any charge to the complex
In contrast, the C₂O₄ ligand has a charge of -2. As there are 2 C₂O₄, the charge is -4.
The -4 + The charge of Cr is equal to global charge of the complex ion = -1.
Thus, Cr has a charge of +3 and right answer is:
A. 3+When a living organism is successful in meeting all its needs ,this is called
A.active transport
B.endocytosis
C.homeostasis
D.exocytosis
Answer:
homeostasis
Explanation:
source Wiki
In biology, homeostasis (or “health”) is the state of steady internal, physical, and chemical conditions maintained by living systems. This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits (homeostatic range). Other variables include the pH of extracellular fluid, the concentrations of sodium, potassium and calcium ions, as well as that of the blood sugar level, and these need to be regulated despite changes in the environment, diet, or level of activity. Each of these variables is controlled by one or more regulators or homeostatic mechanisms, which together maintain life.
g Which of the following describe chemical properties of hydrogen gas (H2)? At room temperature its density is less than any other gas. It reacts vigorously with oxygen to form water. Liquefied H2 boils at a very low temperature (-253oC). Both b and c are chemical properties.
Answer: It reacts vigorously with oxygen to form water.
Explanation:
Physical property is defined as the property of a substance which becomes evident during physical changes.
Example: At room temperature its density is less than any other gas.
Liquefied [tex]H_2[/tex] boils at a very low temperature [tex](-253^oC)[/tex]
Chemical property is defined as the property of a substance which becomes evident during chemical changes. These properties are defined when a substance undergo changes in bonding of atoms.
Example: It reacts vigorously with oxygen to form water.
write any three porperties of solid
Answer:
A solid has a definite shape and volume.
A solid has a definite shape and volume.Solids in general have higher density.
A solid has a definite shape and volume.Solids in general have higher density.In solids, intermolecular forces are strong.
A solid has a definite shape and volume.Solids in general have higher density.In solids, intermolecular forces are strong.Solids have high melting points.
Answer:
Any 3 properties of solid are as follows
Explanation:
It has higher density.It has definite shape and volume.It has high melting point.Which of the following configurations CANNOT be magnetic?
Answer:d8
Explanation:
Do you think science will end the world or save the world or do neither?
Answer:
This is all up to you
Explanation: This question is up to you because you may think both or just one.
How does the composition of the object to figure a differ from the objects shown in figure be name the object
Answer:
A is a Comet, B is an asteroid
Explanation:
:X
Which are ways to ensure that temperature readings are accurate? Check all that apply. -shaking the thermometer before use
-using the thermometer as a stirring rod
-making sure the liquid inside the thermometer is at eye level when taking the temperature
- making sure the bulb of the thermometer does not touch the bottom of the beaker or the ice when taking the temperature
-using the Celsius scale instead of the Fahrenheit scale when taking temperature readings
Answer: making sure the liquid inside the thermometer is at eye level when taking the temperature.
making sure the bulb of the thermometer does not touch the bottom of the beaker or the ice when taking the temperature
Explanation:
A thermometer is a device that's used to know the temperature of individuals. In order to ensure the accuracy of the readings in a thermometer, it is vital to making sure the liquid inside the thermometer is at eye level when taking the temperature.
Also, one should make sure the bulb of the thermometer does not touch the bottom of the beaker or the ice when taking the temperature.
The thermometer should not be used as a stirring rod. One should not shake it or play with it. Also, using either Celcius or Fahrenheit doesn't really matter.
Not every practice is accepted in temperature reading and these are the practices that apply are
Making sure the liquid inside the thermometer is at eye level when taking the temperature.Making sure the bulb of the thermometer does not touch the bottom of the beaker or the ice when taking the temperature.Option C and Option D are correct Ways to ensure that temperature readings are accurate while using a thermometerGenerally, The essential precautions that need to be taken when the using of thermometer encompass the following:
Do not use a thermometer as a stirring instrument,
Make positive that the liquid interior the thermometer is at eye stage when taking the temperature reading
Do not swing or shake down a thermometer reading
Therefore,the ways that apply are
Making sure the liquid inside the thermometer is at eye level when taking the temperature.
Making sure the bulb of the thermometer does not touch the bottom of the beaker or the ice when taking the temperature.
Option C and D are correct
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What is weathering?
A.
the process by which sediment is compacted into rock
B.
the process by which rocks are broken down into sediment
C.
the process by which sediment is transported from one place to another
D.
the process by which sediment is deposited and built up into landforms
Answer:
B.
the process by which rocks are broken down into sediment
Help me please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Wave 2
Explanation:
Higher frequency means more energy per second, And wave 2 has higher frequesncy
please mark brainliest I’m almost at expert level
Answer:
I believe it is wave 2
Explanation:
As you can see in the graph, wave two happens to be more frequent. There are well, more waves than the first graph. Please forgive me if I am wrong. I tried my best to explain
3.
Which of the following statements is correct?
X Х
1. doubling the pressure of a gas doubles its volume
2. 2.00 L of air at 227°C has twice the pressure of the same 2.00 L of air at -
23°C
3. 2.00 L of air at 100°C has twice the pressure of the same 2.00 L of air at
50°C
4 halving the pressure of a gas halves its volume
Answer:
3. 2.00 L of air at 100°C has twice the pressure of the same 2.00 L of air at 50°C
Explanation:
3. 2.00 L of air at 100°C has twice the pressure of the same 2.00 L of air at 50°C
This is correct;
According to Gay-Lussac Law,
The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles thus, by increasing the temperature pressure is also goes to increase in the same ratio.
All other options are incorrect,
1) doubling the pressure of a gas doubles its volume
This is incorrect because by increasing the pressure volume is going to be decreased.
2) 2.00 L of air at 227°C has twice the pressure of the same 2.00 L of air at 23°C
This is also incorrect because 2 L air at 227 °C will have the pressure more than twice time as compared to the 2L air at 23°C.
4. halving the pressure of a gas halves its volume
This is incorrect because halving the pressure of gas increasing its volume.
Predict the molecular geometry about N in the molecule CH3NHCH3
A. linear
B. trigonal pyramidal
C. bent
D. trigonal planar
The molecular geometry about N in the molecule CH3NHCH3 is trigonal pyramidal. Therefore, option B is correct.
What is molecular geometry ?The three-dimensional arrangement of the atoms that make up a molecule is known as molecular geometry. It includes the molecule's general shape as well as bond lengths and bond angles.
A molecule is trigonal planar if it has three bonds and no lone pairs. A molecule is bent or angular if it has three bonds and one lone pair. Tetrahedral molecules have four bonds and no lone pairs. A molecule is trigonal pyramid if it has four bonds and one lone pair.
Three of the five nitrogen electrons in NH3 are involved in bonding with three hydrogen atoms, while the unbounded two electrons form the single unshared pair of electrons. Ammonia has a trigonal pyramidal shape due to this lone pair.
Thus, option B is correct.
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How many milliliters of an aqueous solution of 0.193 M potassium carbonate is needed to
obtain 7.90 grams of the salt?
Answer:
295 mL
Explanation:
Given data:
Volume needed = ?
Molarity of solution = 0.193 M
Mass of salt = 7.90 g
Solution:
Molarity = number of moles of solute / volume in L
Number of moles of salt = mass/molar mass
Number of moles of salt = 7.90 g/ 138.205 g/mol
Number of moles = 0.057 mol
Volume needed:
Molarity = number of moles / volume in L
0.193 M = 0.057 mol / volume in L
Volume in L = 0.057 mol / 0.193 M
Volume in L = 0.295 L
L into mL
0.295 L × 1000 mL/1L
295 mL