Answers
The balanced equation is:
2C₆H₆ + 15O₂ —> 6H₂O + 12CO₂Chemical equation is simply a representation of chemical reaction with symbols and formula of the reactants and products involved in the reaction.
The balancing of chemical equation is guided by the law of conservation of matter which states that matter can neither be created nor destroyed during a chemical reaction but can be transferred from one for to the other.
Thus, an unbalanced equation simply means that matter has been created or destroyed.
Now, we shall balance the equation given in the question as follow:
C₆H₆ + O₂ —> H₂O + CO₂
There are 6 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 3 before H₂O as shown below:
C₆H₆ + O₂ —> 3H₂O + CO₂
There are 6 atoms of C on the left side and 1 atom on the right side. It can be balance by writing 6 before CO₂ as shown below:
C₆H₆ + O₂ —> 3H₂O + 6CO₂
There are 2 atoms of O on the left side and a total of 15 atoms on the right side. It can be balance by writing \(\frac{15}{2}\) before O₂ as shown below:
C₆H₆ + \(\frac{15}{2}\)O₂ —> 3H₂O + 6CO₂
Multiply through by 2 to clear the fraction.
2C₆H₆ + 15O₂ —> 6H₂O + 12CO₂Now, the equation is balanced.
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Taking into account the Law of Conservation of Mass, the balanced reaction is:
2 C₆H₆ + 15 O₂ → 6 H₂O + 12 CO₂
In first place, you have to know that the Law of Conservation of Mass postulates that "mass is neither created nor destroyed, it only transforms."
This means that the reagents interact with each other and form new products with different physical and chemical properties than the reagents.
But the amount of matter or mass before and after the chemical reaction is always the same, that is, the amounts of the masses involved in a given reaction must be constant at all times, not changing in their proportions when the reaction ends.
So, since the mass of the reactants must be equal to the mass of the products, the number of atoms present in the reactants must be kept in the products. Therefore, the equation must be balanced.
To balance the chemical equation, you must first look at the subscripts next to each atom to find the number of atoms in the equation. If the same atom appears in more than one molecule, you must add its amounts.
The coefficients located in front of each molecule indicate the amount of each molecule for the reaction. This coefficient can be modified to balance the equation, just as you should never alter the subscripts.
By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction.
Then, taking into account all of the above, in this case you can determine the amount of elements on each side of the equation:
Left side: 6 C, 6 H and 2 O
Right side: 1 C, 2 H and 3 O
In first place, you can balanced the C:
C₆H₆ + O₂ → H₂O + 6 CO₂
Then, you have:
Left side: 6 C, 6 H and 2 O
Right side: 6 C, 2 H and 13 O
Now, balanced the H:
C₆H₆ + O₂ → 3 H₂O + 6 CO₂
Then, you have:
Left side: 6 C, 6 H and 2 O
Right side: 6 C, 6 H and 15 O
Finally, balanced the O:
C₆H₆ + \(\frac{15}{2}\) O₂ → 3 H₂O + 6 CO₂
Then, you have:
Left side: 6 C, 6 H and 15 O
Right side: 6 C, 6 H and 15 O
The reaction is balanced, but you can't balance a chemical equation with fractions, so multiplying all the stoichiometric coefficients by 2 finally obtains:
2 C₆H₆ + 15 O₂ → 6 H₂O + 12 CO₂
Finally, the balanced reaction is:
2 C₆H₆ + 15 O₂ → 6 H₂O + 12 CO₂
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Related Questions
When you give the molecules in a gas sample more room to move,
Answers
A student placed a small piece of magnesium ribbon in a conical flask and added
60 mL hydrochloric acid. The student observed that when the hydrochloric acid
came into contact with the magnesium ribbon, bubbles formed indicating the
release of hydrogen gas. The magnesium dissolved and magnesium chloride
solution formed. Based on the student's observations, which type of reaction
occurred?
Answers
Answer:
Single replacement reaction
Explanation:
Let us try to write down the reaction equation for the reaction of a magnesium ribbon with hydrochloric acid.
Mg(s) + 2HCl(aq) ------> MgCl2(aq) + H2(g)
A single replacement reaction is a type of chemical reaction in which one element is replaced by another element in a compound.
In this reaction, magnesium replaced hydrogen to form the product. Hence it is a single replacement reaction.
HELP ME PLLSS (with both)
2. What is the ratio of moles of CuSO4 to moles of NaOH?
Answers
Answer: 1. 1 : 2 2. NaOH is the limiting reactant
Explanation: Hope this helps you
Answer:
2. Ratio 1CuSO4 : 2NaOH
Explanation:
CuSO4 + 2NaOH ⟶ Cu(OH)2 + Na2SO4
so 1 mole of CuSO4 will react with 2 moles of NaOH
therefore the ratio is 1:2
Hope this helps
Question 5 of 10
When you think about whether most people are basically good or basically
bad, you are:
A. repeating beliefs you learned from your family.
B. exploring your own beliefs.
C. deciding what actions to take in your life.
OD. accepting the values of others.
SUBMIT
Answers
When you think about whether most people are basically good or basically
bad, you are exploring your own beliefs.
A person's beliefs will influence how they make decisions and react to circumstances. Most often, beliefs are established throughout childhood or other formative experiences.According to psychology, Beliefs can be positive or negative. Finding one's core beliefs can be difficult at times. It can take a lot of introspection, and some people might need a therapist's help to uncover their core beliefs.The downward arrow method can be used to identify your core beliefs. This entails tracing each idea back to the fundamental belief it was based on.You might occasionally make unfair or unjust assumptions about someone as a result of your attitudes and beliefs.therefore, according to the above-explained points, the above statement justifies the point of exploring your own beliefs.
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Q6. Bromine, like chlorine, has two stable isotopes. For bromine, the isotopicmasses are 78.9183 amu, with a relative abundance of 50.69% and 80.9163amu with a relative abundance of 49.31%. Calculate the average atomic weightof bromine.
Answers
The question requires us to calculate the average atomic weight of bromine, given this element isotope masses and their abundance.
The following information was provided by the question:
number of isotopes of Br = 2
mass of isotope 1 = m1 = 78.9183 amu
abundance of isotope 1 = f1 = 50.69%
mass of isotope 2 = m2 = 80.9163 amu
abundance of isotope 2 = f2 = 49.31%
The average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance (we use the decimal number associated with the abundance for the isotope; for example: if the abundance is 75%, we use 0.75).
Therefore, to calculate the average atomic mass of Br, we'll use the following equation:
\(\text{average mass Br = m}_1\times f_1+m_2\times f_2\)where m refers to the isotope mass and f, to its natural abundance.
Applying the values provided by the problem, we have:
\(\text{average mass Br = (}78.9183\times0.5069_{})+(80.9163\times0.4931)=79.90\text{ amu}\)Therefore, the average atomic weight of bromine is 79.90 amu.
What volume (in mL) will a sample of F2 gas occupy in a syringe at 5.5 atm, if the F2 has a volume of 25.0 mL at 1.2 atm?
Answers
A sample of \(F_2\) gas that occupies 25.0 mL at a pressure of 1.2 atm will occupy 2.73 mL at a pressure of 5.5 atm, assuming the temperature remains constant.
To solve this problem, we can use the combined gas law, which relates the pressure, volume, and temperature of a gas before and after a change in one or more of these properties. The combined gas law is given by:
\((P_1 * V_1) / T_1 = (P_2 * V_2) / T_2\)
where\(P_1\) and \(V_1\) are the initial pressure and volume, \(T_1\) is the initial temperature, \(P_2\) and \(V_2\) are the final pressure and volume, and \(T_2\) is the final temperature.
In this problem, we are given the initial volume of \(F_2\) gas as 25.0 mL at a pressure of 1.2 atm. We want to find the final volume of the gas at a pressure of 5.5 atm. The temperature is not given, but we can assume that it remains constant.
We can rearrange the combined gas law to solve for\(V_2\):
\(V_2 = (P_1 * V_1 * T_2) / (P_2 *T_1)\)
Plugging in the values, we get:
\(V_2\) = (1.2 atm x 25.0 mL x \(T_2\)) / (5.5 atm x \(T_1\))
We can simplify the expression by canceling out the units of atm and mL:
\(V_2\) = (1.2 x 25.0 x \(T_2\)) / (5.5 x \(T_1\)) mL
\(V_2\)= (30 x \(T_2\)) / (11 x\(T_1\)) mL
We can see that the final volume of the gas is proportional to the ratio of the temperatures \(T_2\)/\(T_1\). Since we are assuming that the temperature remains constant, this ratio is equal to 1, and we can simply calculate the final volume as:
\(v_2\) = (30 mL) / (11) = 2.73 mL
Therefore, a sample of\(F_2\) gas that occupies 25.0 mL at a pressure of 1.2 atm will occupy 2.73 mL at a pressure of 5.5 atm, assuming the temperature remains constant.
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Is the following sets of quantum numbers valid? Give suitable reason. n=3,l=2,m=3,s=+1/2
Answers
Answer:
The set of quantum numbers is not valid
Explanation:
There are four sets of quantum numbers;
1) Principal quantum number (n) which takes on integer values from n = 1,2,3 .......
2) Azimuthal quantum number (l) which takes on values 1, 2, ....(n - 1)
3) Magnetic quantum numbers (ml) which takes on values from (-l) to (+l)
4) spin quantum number (ms) which takes on values of ±1/2.
From the above, we can see that m can not have a value of 3 when l =2 because m has values between (-l) to (+l). Thus, the sets of quantum numbers is not valid.
Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high temperatures. If 18.1 g of Nh3 is reacted with 90.4 g of CuO, which is the limiting reactant? How many grams of N2 will be formed? Explain how you solved for your answers.
Balanced Equation: 2NH3 + 3CuO → 3Cu + N2 + 3H2O
Answers
I first converted the given grams of the reactants into moles, and then divided the moles by the coefficients in front of each of the reactant. The result with the smallest value will be the limiting reactant, and the value of CuO was the smallest, so it's the limiting reactant.
After figuring out which reactant is the limiting one, I took their given grams and converted it into moles, the divided it by the ratio of N2 to CuO (it's in the equation) to obtain the moles of N2, and then multiply it with the molar mass of N2 to get its mass in grams.
2 nitrogen atoms and five chlorine atoms what compound does that make
Answers
Answer:
dinitrogen pentachloride
How many atoms of phosphorus are in 8.80
mol of copper(II) phosphate?
Answers
By the concept of calculating moles ,it can br concluded that the no. of atoms of phosphorus in 8.80mol of copper(II) phosphate is=1.06\(x10^{25}\)
A mole is defined as amount of substance containing as many as elementary entities that are there in atoms of exactly 12 g of carbon-12.Therefore we can say,1 mole of copper(II) phosphate, Cu3(PO4)2, contains three moles of copper(II) cations and two moles of phosphate anions.
Again 1mole of phosphate anions contains one mole of phosphorus and four moles of oxygen.Considering all these informations we can conclude that:1 mole of copper(II) phosphate contains 2 moles of Phosphorus
Accordingle the sample contains=(8.80\(x\)2) moles of Phosphorus
=(17.6\(x\)Avogadro's constant) atoms of Phosphorus
=(17.6\(x\)6.022\(x\)\(10^{23}\)) atoms of Phosphorus
=1.06\(x10^{25}\) [approx] no. of Phosphorus atoms
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In 8.80 moles of copper(II) phosphate, there are approximately 1.06 x 10²⁵ atoms of phosphorus.
Explanation:The number of atoms of phosphorus in a given amount of a compound can be calculated using the concept of mole in chemistry. Copper(II) phosphate is Cu3(PO4)2, containing 2 moles of phosphorus (P) for every 1 mole of the compound. Avogadro's number (6.022 x 10²³) gives the number of atoms in one mole.
So, if there are 8.80 moles of copper(II) phosphate, there would be 2 × 8.80 moles of phosphorus. Multiplying this by Avogadro's number gives the total number of phosphorus atoms.
Therefore, the number of phosphorus atoms is 2 × 8.80 × 6.022 x 10²³ = 1.06 x 10²⁵ atoms of phosphorus.
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A peanut was burned in a calorimeter filled with 70g of water. The temperature
increased from 21°C to 87°C. How much heat was released by the peanut. The
specific heat of water is 4.18 J/gºC *
Answers
Answer:
\(heat = mc \triangle \theta \\ = 70 \times 4.18 \times (87 - 21) \\ = 19311.6 \: joules\)
What is the oxidation state of O in NO₂?
OA. +2
OB. -2
O C. O
OD. -4
Answers
Answer:
Let it be x
\({ \tt{ (oxidation \: state \: of \: nitrogen) + 2x = overall \: charge}} \\ { \tt{ - 4 - 2 x = 0}} \\ { \tt{2x = - 4}} \\ { \tt{x = - 2}}\)
Balance the following reaction by typing in the correct coefficients in front of each reactant and product.
H3PO4(s) -
-->
H₂(g) +
P(s) +
O₂(g)
Answers
Describe how moving the mountain lions could affect the ecosystem
Answers
Answer:
If Mountain lions are removed from a habitat/ecosystem, their prey will overpopulate, which may lead to extinctions on the pray of the secondary consumers. ex. A mountain lion would eat rabbits who eat berries, if there are no mountain lions to kill the rabbits, then the berries may be scarce
Explanation:
bc i know everthing
A piece of metal with a mass of 24.2 g was dropped into a graduated cylinder containing 15.50 mL of water. The graduated cylinder after the addition of the metal is shown. Determine the density of the metal.
Answers
Explanation
Given
Mass of metal = 24.2 g
Initial volume = 15.50 mL
Final volume = 18.4 mL
Volume occupied by metal = 18.4 mL - 15.50 mL = 2.9 mL
Solution
density = mass/volume
density = 24.2g/2.9 mL
density = 8.34 g/mL
Answer
Density of metal = 8.34 g.mL
For the reaction A+2B→C 5 moles of A and 8 moles of B produce
Answers
C = 5mol produced
Explanation:
To determine how many moles of C are produced from 5 moles of A and 8 moles of B, we need to use the stoichiometry of the balanced chemical equation for the reaction:
A + 2B → C
From the balanced equation, we can see that 1 mole of A reacts with 2 moles of B to produce 1 mole of C. Therefore, the number of moles of C produced will depend on the limiting reactant.
To determine the limiting reactant, we need to compare the number of moles of A and B to their stoichiometric coefficients in the balanced equation.
5 moles of A will react with 10 moles of B (since 1 mole of A reacts with 2 moles of B), so B is in excess.
Thus, A is the limiting reactant and will be completely consumed. The number of moles of C produced will be equal to the number of moles of A used, which is 5 moles.
Therefore, 5 moles of C are produced from 5 moles of A and 8 moles of B.
Why are bubbles and precipitates both signs of chemical change
Answers
Answer:(I didn’t really know where to Wrigh-)
Explanation: Gas bubbles appear after a chemical reaction has occurred and the mixture becomes saturated with gas. The chemical change that creates the gas is completed after the gas bubbles leave the mixture.
Steel is an alloy of iron and carbon. The addition of carbon to iron enhances which of the following properties of iron metal?
O A hardness
O B. malleability
O C. ductility
O D. softness
Answers
Answer:
The answer should be A. Adding carbon to iron makes it tougher and stronger.
The addition of carbon atom to iron metal, enhances the property of hardness of metal.
What is alloy?Alloy is a compound which is formed by the mixture of two or more than two metals with different properties to make a new compound with better properties.
When we add carbon atom in the iron metal, it deviates the crystal lattice property of iron and makes it more harder. So, the content of carbon in the iron is directly proportional to the hardness of iron metal.
Hence, option (A) is correct i.e. hardness.
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11,12,13,14 please...
Answers
12.C
13. For 13 i would say B but not so sure
14. A
How do hurricanes form? How do hurricanes form?
a Hurricanes form when winds circulate about a column of cool air.
b Hurricanes form when two warm fronts meet over the ocean
c Hurricanes form when warm air over the equator mixes with cold air from the poles
d Hurricanes form as a result of rising warm air and circulating winds
Answers
Answer:
D. Hurricanes form as a result of rising warm air and circulating winds
Explanation:
(02.03 MC)
An electron moved from a lower energy level to a higher energy level. What most
likely happened during the transition? (5 points)
1) A random amount of light was released.
2) A fixed amount of energy was absorbed.
-
3) A fixed amount of energy was released.
1
4) A random amount of light was absorbed.
Answers
An electron moved from a lower energy level to a higher energy level, and during the transition, a random amount of light was released. Option A
What exactly are these electrons?
An electron is a kind of subatomic particle that has a negative charge. It is possible for it to be free (meaning that it is not associated with the nucleus of any atom) or it may be tied to the nucleus of an atom.
Electrons are sub-atomic particles that may be found in each atom of any chemical element and can occupy different energy levels. These electrons are capable of transitioning between different energy levels.
Electrons may transition from a state with a lower energy level, also known as the ground state, to a state with a higher energy level, also known as an excited state. Alternatively, electrons can transition from a state with a higher energy level to a state with a lower energy level.
When an electron goes from a lower energy level to a higher energy level, the atom takes in more energy, but when the electron moves from a higher energy level to a lower energy level, the additional energy is expelled mostly in the form of light.
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Try moving an electron from the metal to the non metal.What happens?
Answers
Answer:
Sodium becomes a positive ion and chlorine becomes a negative ion. ... Each atom is neutrally charged, which means that each atom has the same number of protons and electrons.
Explanation:
Help please :,s
What happens when a photon hits a solar cell?
Answers
Answer:
When a light photon hits a solar cell, it knocks free an electron that drives an electrical circuit.
Explanation:
100 POINTS PLEASE HELP!!! 1. Explain how you would determine the enthalpy of reaction for the hypothetical reaction A2X4(l) + X2(g) → 2AX3(g) using the following information. You do not need to calculate an answer. Respond to the prompt with a minimum response length of 50 words.
Answers
To determine the enthalpy of reaction for the given reaction, use Hess's Law, which states that the total enthalpy change of a reaction is independent of the pathway between the initial and final states.
How to determine the enthalpy of reaction?Break the given reaction into a series of steps for which the enthalpy changes are known or can be measured experimentally.
Add the enthalpy changes of each step to determine the overall enthalpy change for the reaction.
For example, determine the enthalpy of formation for A₂X₄(l), X₂(g), and AX₃(g) and use them to calculate the enthalpy of reaction for the given equation.
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Which lists the waves in order of frequency, from highest to lowest?
Answers
microwaves.
infrared waves.
light.
ultraviolet waves (rays)
x-rays.
gamma rays.
Answer:
d.visible light, infrared, microwaves
Explanation:
edge 2021
Compute the sugar content in an 8 oz sample of a soft drink. If the sugar content as per label on the product =10g per 100ml.
Answers
Answer:
\(m_{sugar}=23.7g\ sugar\)
Explanation:
Hello,
In this case, we can first compute the volume of the sample in mL from the ounces:
\(8oz*\frac{29.5735mL}{1oz} =236.6mL\)
Thus, with the volume of the sample, we can compute the amount of sugar given the 10 g of sugar per 100 mL of soft drink as shown below:
\(m_{sugar}=236.6mL*\frac{10g\ sugar}{100mL}\\ \\m_{sugar}=23.7g\ sugar\)
Best regards.
TiCl4 + O2
What is the predicted product
Answers
Answer: Titanium dioxide
It has been approximately 30 minutes since you
poured up the maxillary impression and base.
As you remove the impression from the model,
two anterior teeth break off. Discuss possible.
reasons why this happened
Answers
The breakage of the anterior teeth occurs because of there is not enough setting time, also a bubble or void in pour also.
What is dental impression models ?Imprints of teeth, gums, and other oral structures are captured in dental impressions. They are used to make dental restorations, whitening products, trays, retainers, mouth guards, and more. They are also used to build diagnostic models of your mouth. Digital or conventional dental imprints are both possible.
Patients who are prone to oral candidiasis might incorporate the dental imprint technique into their treatment plans to help manage infection. The denture base's proper lip support and fit enable for improved recording of the maxillomandibular jaw connection as well as opportunities to get around the limitations of the traditional method.
Here, the removal of the impression from the model leads to the breakage of anterior teeth its because, there is not enough setting time, also a bubble or void in pour also.
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Given the law of conservation of energy, what happens when a 200°C iron bar is placed in thermal contact with a 30°C block of wood?
Answers
When a 200°C iron bar is placed in thermal contact with a 30°C block of wood, energy leaves the iron bar and enters the wood until the temperatures are equal.
Law of conservation of energy states that the energy cannot be lost or formed but it can only be transformed from one form to another.
According to the given question, the block of wood is at a lower temperature than an iron bar. Hence, heat will flow from the iron bar to the block of wood until the temperatures of both are equal.
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What is the Compound formula for K+ and O2-
Answers
Answer:
k20
Explanation:
potassium oxide
hope this helped
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