C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
mole C₃H₈ = 68.5 : Mr C₃H₈ = 68.5 : 44 g/mol = 1.557
mole O₂ = 83.4 : Mr O₂ = 83.4 : 32 g/mol = 2.606
to find limiting reactants :
divide the number of moles by their respective coefficients, and the small quotient will be a limiting reactants
C₃H₈ : O₂ = 1.557/1 : 2.606/5 = 1.557 : 0.521
O₂ as a limiting reactant, C₃H₈ excess reactants
reacted mole of C₃H₈ : 1/5 x 2.606 = 0.5212
unreacted mole of C₃H₈ : 1.557 - 0.5212 = 1.0358
mass of C₃H₈ (unreacted) = 1.0358 x 44/gmol = 45.575 g
What is the rate of a chemical reaction?
a.the speed at which reactants change to products over a given time the speed at which reactants change to products over a given time
b. the amount of each reactant needed in relation to all the others the amount of each reactant needed in relation to all the others
c.the time it takes for all the reactants to become products the time it takes for all the reactants to become products
d. the energy cost to transform all reactants into products
Answer:
the speed at which reactants change to products over a given time
Explanation:
Correct
Characters in farhenehit 451 who talk about nature.
Answer:
Nature imagery represents truth and enlightenment in Fahrenheit 451, especially for Montag, but also for Clarisse, the young woman he befriends early in the novel. Montag lives in a world where the natural has been replaced by the emptiness of the mechanical, robotic, and man-made.
Explanation:
If I throw a 10 kg ball with a force of 60 N, what will the ball's acceleration be?
Answer:
6
Explanation:
f=ma (from Newton's second law of motion)
Explain how phosphorus can form a bond with 5 different chlorine atoms. In your answer, explain what
type of bonds are formed, how many bonds are formed, and the reason that this molecule is possible.
Answer:
Phosphorus can have expanded octet, because it can shift it's lone pair electrons (3s orbital electrons) to empty 3d obital during excited state and thus can form 5 bonds.
Explanation:
hope it helps
Conner is testing the pH of a swimming pool and he finds it to be 6.5. Optimal pH for swimming is between 7.0 and 7.6.
Conner adds a compound to the pool and waits a few hours. He retests the pool water and finds the pH to be 7.2.
What did Conner do to raise the pH of the pool?
A) He added water to raise the pH.
B) He added a base to raise the pH.
C) He added a salt to raise the pH.
D) He added an acid to raise the pH.
Answer:
The answer is B. I took the test and made a 100
Explanation:
Answer:
thank you!
the answer is B) he added a base to raise the pH.
Explanation:
have a great week
Model the chemical reaction between methane and oxygen. Drag the atoms from the reactants to form the products in the reaction. Use the equation to help you.
Answer:
Answer is in the image attached :)
How many molecules are there in 1.21 moles of O2?
How to solve chemical
Answer:
So if this is about chemical equations. You have 3 steps.
Step 1.- Count each type of atom in reactants and products.
Step 2.- Place coefficients, as needed, in front of the symbols or formulas to increase the number of atoms or molecules of the substances.
Step 3.-Repeat steps 1 and 2 until the equation is balanced.
Explanation:
The population census of a city shows that its population has grown in the last decade. This growth has surpassed the city’s ability to provide sufficient water to its people. The city is located about 10 miles from the ocean and has a dry climate. Suggest a technology to use in this city. Defend your choice with a valid explanation.
Answer: Hydro-electricity
Explanation: After all it is technology right. The population can use the waves even the tides of the ocean's water to create electricity which is reliable. of course in the beginning it will be expensive but the result will be effective useful. The area having a dry climate could be because of the winds that blow precipitating clouds away but they can have a stable climate by planting more trees where rain can be processed within the geographical location. Finally, the problem of water supply can be fixed by installing water pipes to transport water to the community but in the process, water can be filtered or cleansed to prevent some diseases and social issues/calamities.
all credit to geography
bye
PLS ANSWER QUICKLY
I will give you a brainest
draw arrows to show the path of the
electricity in this series circuit pls answer quickly as possible
Answer:
from positive to negative
what are the 7 different electromagnetic waves
The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.
* do consider marking me brainliest, if it does help, do also correct me if I am wrong in some way. thank you <3.
How many moles are in 5.4 x 10-7 grams of silicon dioxide, SiO2 ?
Answer:
there are [tex]\sf 9*10^{-9}[/tex] moles in grams [tex]\sf 5.4 * 10^{-9}[/tex] of silicon dioxide.
Explanation:
[tex]\boxed { \boxed{ \sf moles = \sf{\frac{mass}{Mr}} }}[/tex]
we should know that:
[tex]\sf molar \ mass \ of \ SiO2 = 60[/tex][tex]\sf given \ mass \ of \ SiO2 = 5.4 * 10^{-7}[/tex]using the formula:
[tex]\sf moles = \frac{mass}{Mr}[/tex]
[tex]\sf moles = \frac{5.4*10^{-7}}{60}[/tex]
[tex]\sf moles = 9*10^{-9}[/tex]
calcium + sulfuric acid =
Answer:
Calcium metal will react with sulfuric acid to produce calcium sulfate solution, and hydrogen gas.
Please let me know if I'm wrong.
Answer:
The reaction between calcium and sulphuric acid produces calcium sulphate, a salt and hydrogen gas. It is a single displacement reaction.* Calcium is a metal.* Sulfuric acid as the name suggests is an acid.
Hope I could be of service
PREDICT THE PRODUCTS AND BALANCE THE EQUATION
FeCl2 (aq)+K2NO3 (aq)
→
Answer:
see below
Explanation:
Swap cations and anions
K2NO3 is not balanced, it is either 2KNO3 or KNO3 and only 2KNO3 works in this case
FeCl2 (aq)+KNO3 (aq) → Fe(NO3)2 (aq) + 2KCL (aq)
How was president Andrew Jackson wrong for closing the bank
In an atom, what is the maximum number of electrons that can have the following quantum numbers?.
How does extreme pressure affect the volume occupied by a real gas compared to the predictions of the ideal gas law? (3 points)
Group of answer choices
The true volume of the gas will be higher than predicted by the ideal gas law because the attraction between the particles is weaker under high pressure.
The true volume of the gas will be lower than predicted by the ideal gas law because the attraction between the particles is weaker under high pressure.
The true volume of the gas will be higher than predicted by the ideal gas law because the volume of the actual particles is more significant under high pressure.
The true volume of the gas will be lower than predicted by the ideal gas law because the volume of the actual particles is more significant under high pressure.
At a very high pressure, the volume of occupied by a real gas is greater than the volume predicted by the ideal gas law, because the volume of the actual particles is more significant under high pressure.
Behavior of gases at low pressure and high pressuresAt low pressure, the distance between gas molecules is relatively far apart, but as the pressure of the gas increases, the distances between theses gaseous molecules becomes smaller.
Due to the high pressure the volume occupied by the gas molecules becomes significant compared with the volume of the container.
As a result, the total volume occupied by the gas will be greater than the volume predicted by the ideal gas law.
Thus at a very high pressure, the volume of occupied by a real gas is greater than the volume predicted by the ideal gas law, because the volume of the actual particles is more significant under high pressure.
Learn more about behavior gases under pressure here: https://brainly.com/question/13512523
Answer: The fourth answer
Explanation:
Under high pressure, real gases deviate from ideal gas behavior as their particles have a finite size and experience intermolecular forces, causing the actual volume of the gas to be lower than predicted by the ideal gas law.
What is a nuclear power plant original energy form?.
Answer: Hope that helps!
Explanation: Unlike a traditional coal-burning power plant, a nuclear power plant uses the energy, or heat, produced by the fission of Uranium, rather than the burning of coal, to heat water into the steam required to turn the turbines that power electric generators. The advantage of using Uranium over
Which element has chemical properties that are most
similar to potassium, And why?
Answer:
Brainliest pls
Explanation:
The components potassium and sodium have comparable substance properties since they have a similar number of valence electrons
What are two ways you can tell that steel wool went into a chemical reaction
Answer:
Two ways that I can tell is that rusting is a chemical reaction because it is not caused by any physical force or trauma it's oxidation and it changes colors from heat and heat is one of the main factors for a chemical reaction.
Explanation:
Answer:
Explanation:
Touching the battery to steel wool sends a current through the thin wire, and it heats up a lot (to about 700 degrees C). These temperatures cause the iron to react with the oxygen (O2) in the air and creates iron oxide (FeO2).
Why do we see only one side of the moon from Earth?
The moon takes longer to rotate than to revolve around Earth.
The moon takes less time to rotate than to revolve around Earth.
The moon does not rotate.
The moon’s period of rotation and revolution are equal.
Answer:A - The Moon Takes Longer To Rotate Than To Revolve Around Earth
Which type of tropism works together with hydrotropism?
gravitropism
phototropism
thigmotropism
hydrotropism
Tropism is the movement that plants make in response to a stimulus from the outside, hydrotropism and gravitropism work together in the roots adaptation.
What are hydrotropism and gravitropism?Hydrotropism is the response of the plant to an aquatic stimulus, it is usually reflected in the growth of the roots oriented by the availability of water.
On the other hand, the growth towards the ground of the roots is determined by another tropism: gravitropism, a response to the force of gravity, together with hydrotropism, plants take advantage of water throughout their development and adaptation.
Therefore, we can conclude that depending on the nature of the stimulus, tropisms are classified in different ways, hydrotropism and gravitropism work together in the plant's adaptation.
Learn more about hydrotropism and gravitropism here: https://brainly.com/question/9111918
Answer:
its A btw
Explanation:
A sample of a compound weighing 416 grams decomposes into 143 grams of iron and 273 grams of chlorine. The
percent composition of these products is
iron and chlorine. Using these values, we can
determine that the empirical formula of the compound is Fe CI
Use the periodic table to help you find the molar masses.
1. The percentage composition of iron in the compound is 34.4%
2. The percentage composition of chlorine in the compound is 65.6%
3. The empirical formula of the compound is FeCl₃
1. How to determine the percentage of ironMass of compound = 416 gMass of iron (Fe) = 143 gPercentage of iron (Fe) =?Percentage of Fe = (mass of Fe / mass of compound) × 100
Percentage of Fe = (143 / 416) × 100
Percentage of Fe = 34.4%
2. How to determine the percentage of chlorine Percentage of Fe = 34.4%Total percentage = 100%Percentage of chlorine (Cl) =?Percentage of Cl = 100 – 34.4
Percentage of Cl = 65.6%
3. How to determine the empirical formula Fe = 34.4%Cl = 65.6%Empirical formula =?Divide by their molar mass
Fe = 34.4 / 56 = 0.614
Cl = 65.6 / 35.5 = 1.848
Divide by the smallest
Fe = 0.614 / 0.614 = 1
Cl = 1.848 / 0.614 = 3
Thus, the empirical formula of the compound is FeCl₃
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what is the Lewis dot structure for NOH3
In this structure, Nitrogen (N) has a lone pair of electrons, Oxygen (O) has a lone pair of electrons, and each Hydrogen (H) atom has two electrons and no lone pairs.
The Lewis dot structure for [tex]NOH_{3}[/tex] (nitrosamine) can be determined by following a few steps:
Count the total number of valence electrons in the molecule. Nitrogen (N) contributes 5 valence electrons, Oxygen (O) contributes 6 valence electrons, and Hydrogen (H) contributes 1 valence electron each. So, the total number of valence electrons is:
5 (N) + 6 (O) + 3 (H) = 14 valence electrons.
Identify the central atom. In this case, Nitrogen (N) is the central atom since it can form more bonds compared to Oxygen (O).
Connect the atoms using single bonds. In [tex]NOH_{3}[/tex], Nitrogen (N) is bonded to Oxygen (O) and three Hydrogen (H) atoms.
Place the remaining electrons around the atoms to complete their octets. Start by filling the octet of the atoms bonded to the central atom, and then distribute the remaining electrons to satisfy the octet rule. If there are extra electrons, place them on the central atom.
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In the water cycle we can observe transformations:
a) Permanent
b) Temporary
c) Chemical
d) None of the above
Answer:
b
Explanation:
temporary bc it's have time so the water can cycle
How many moles of carbon dioxide can be formed by the decomposition of 5.0 moles of aluminium carbonate
Answer:
30 moles of CO₂
Explanation:
Name these compounds: KCI, ZnO, SO2, SO3,CuSO4
Answer:
potassium chloride
zinc oxide
sulphur dioxide
sulfur trioxide
copper sulphate
Which reagent is used to detect the presence of protein?.
Answer:
Sample Respond: The presence of protein is tested by the Biuret test for proteins. The Biurette reagent made of sodium hydroxide and copper (II) sulfate helps in determining the presence of protein in a sample.
Explanation:
I got 100 % trust me
WARNING this is Not chemistry it is science
Please answer at least one of these questions:
A boy of mass 60 kg and a girl of mass 40 kg are together and at rest on a frozen pond. What is the initial momentum of the boy?
A. 0 kgm/s
B. 60 kgm/s
C. 100 kgm/s
D. 10 kgm/s
The initial momentum of the boy is 0 kgm/s the right option is A. 0 kgm/s.
Momentum can be defined as the product of mass and velocity. The S.I unit of momentum is kgm/s.
The initial momentum of the boy can be calculated using the formula below.
Formula:
M' = muWhere:
M = Initial momentum of the boyFrom the question,
Given:
M = mass of the boy = 60 kgU = Initial velocity of the boy = 0 m/s (at rest)Substitute these values into equation 1
M = 60(0)M = 0 kgm/sHence, The initial momentum of the boy is 0 kgm/s the right option is A. 0 kgm/s.
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