what causes carbon monoxide poisoning from vehicles? choose one a. driving a vehicle with the trunk lid or rear tailgate open. b. operating a vehicle with a defective exhaust system. c. warming up a vehicle in a garage, even with the outside garage door open. d. all of the above.
Answers
Each of these situations can lead to an accumulation of carbon monoxide gas, which is emitted as a byproduct of combustion in the vehicle's engine, and can be harmful or fatal when inhaled in high concentrations.
a) When driving a vehicle with the trunk lid or rear tailgate open, carbon monoxide can enter the cabin area due to the flow of air from the rear of the vehicle, where the exhaust gases containing carbon monoxide are emitted.
b) Operating a vehicle with a defective exhaust system, such as a leak or a damaged muffler, can cause carbon monoxide to enter the vehicle's interior instead of being safely expelled through the exhaust pipe. This can result in an accumulation of carbon monoxide gas inside the vehicle.
c) Warming up a vehicle in a garage, even with the outside garage door open, can be dangerous as carbon monoxide can build up in the enclosed space. The gas is released from the vehicle's exhaust system and may not be effectively ventilated, leading to a high concentration of carbon monoxide in the garage.
In each of these scenarios, carbon monoxide is produced as a result of incomplete combustion of fossil fuels in the vehicle's engine. Carbon monoxide is colorless, odorless, and tasteless, making it difficult to detect without proper monitoring equipment.
Inhalation of high levels of carbon monoxide can lead to carbon monoxide poisoning, which can cause symptoms ranging from headaches, dizziness, and nausea to more severe conditions and even death.
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Carbon monoxide poisoning from vehicles can occur due to a defective exhaust system, operating the vehicle in an enclosed space, or even driving with the trunk or tailgate open. The poisonous effect of carbon monoxide is due to its ability to bind with hemoglobin and block the transport of oxygen in the body.
Explanation:The causes of carbon monoxide poisoning from vehicles include: a. driving a vehicle with the trunk lid or rear tailgate open, b. operating a vehicle with a defective exhaust system, and c. warming up a vehicle in a garage, even with the outside garage door open. Carbon monoxide is a byproduct of the combustion of hydrocarbon fuels, a process that occurs in vehicle engines. If the exhaust system of a vehicle is defective or if the vehicle is operated in an enclosed space, such as a garage, the carbon monoxide may not be effectively vented out and can build up in the environment, possibly leading to carbon monoxide poisoning. Carbon monoxide is especially dangerous because it has a greater affinity for hemoglobin than oxygen. When it is inhaled, it binds to hemoglobin in the blood, preventing oxygen from being effectively transported through the body.
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Related Questions
if an atom has a radius of 43 p.m. what is its circumference
Answers
atom is sphere so we can write cicumference as 2pier
now put value
2 x 3.14 x 43
= 270.04
hence the circumcentre is 270.04
Determine physiological temperature, 98.6 F in degree C
Answers
Answer:
37
Explanation:
( 98.6 - 32 ) × 5(100c) ÷ 9(180f) = 37
If it is a clear spring day, which of
the following can we say with
certainty after Earth makes one
fourth of a full revolution?
A. It will be summer.
B. It will be cloudy.
C. It will be autumn.
D. It will be night.
Answers
Answer:
A. It will be summer
Explanation:
You want to know what can be said with certainty about the season, light, or weather if the Earth makes 1/4 revolution following a clear spring day.
RevolutionThe Earth has two motions that we use to mark time. It makes one full rotation about its axis in one day, and it makes one full revolution about the sun in one year.
After 1/4 revolution, 1/4 year will have passed. Each season is given 1/4 year on our calendar, and the one following spring is summer.
One-quarter revolution after a spring day, you will enjoy a summer day. We can say with certainty, ....
It will be summer.
__
Additional comment
There are different definitions of day and year, depending on whether you are interested in clock/calendar time, the time to return to the same relative position among the stars, or the time to return to the same position relative to the sun.
Because of the eccentricity of the Earth's orbit and the way seasons are defined, the seasons are not all the same length (1/4 year). The attachment shows this for 2023 in the northern hemisphere (Amsterdam, NL).
One-quarter of a full rotation would be 6 hours. In springtime in the Northern hemisphere, days are getting longer. There will usually be at least 12 hours of daylight. So, a 1/4 rotation will not guarantee a transition to night has been made.
I’m completely lost on these stoichiometry problems
Answers
Answer:
1) 4.21 x 10^24 molecules of Fe2O3
2) 36.416g of O2
Explanation:
1) First, find moles of Fe2O3 by using the mole ratio of 3:2. Fe2O3 has a coefficient of 2, and O2 has a coefficient of 3 thus making their mole ratio 2:3. Then, multiply 10.5 moles of O2 by 2/3 which equals 7 moles of Fe2O3. Finally, convert moles of Fe2O3 to molecules by multiplying it by Avogadro's number.
10.5 mol x 2/3= 7 mol Fe2O3
7 mol multiplied by 6.02 x 10^23 = 4.21 x 10^24 molecules
2) First, convert grams of KClO3 to moles by dividing it by its molar mass(approximately 122.5 g), which equals .759 mol. Then find moles of O2 by multiplying .759 mol KClO3 by the mole ratio of O2 to KClO3, which is 3:2. That equals 1.138 moles of O2. Finally, convert moles to grams by multiplying 1.138 mol by the molar mass of O2 (approximately 32g). 36.416g of O2 is your final answer.
93g KClO3/ 122.5g = .759 mol KClO3
.759 mol x 3/2= 1.138 mol O2
1.138 mol x 32g= 36.416g O2
Answer:
See Explanations ... I'll have to deliver my explanation in two posts. One is beyond the limits allowed.
Explanation:
Stoichiometry is very easy if you understand the relationship between the 'mole' and the balanced chemical equation. Let's start by defining the 'mole'
The 'mole' of substance is the mass of substance (element or compounds) that contains 1 Avogadro's Number ( = 6.02 x 10²³ ) of particles. The mass of substance that does contain 1 Avogadro's Number of particles is 1 formula weight of substance (also, molecular weight of substance). That is,
1 mole = 1 formula wt. = 1 mole weight = 1 Avogadro's Number = 6.02 x 10²³ particles of substance.
So, assuming you can determine formula weight then that value expressed in terms of grams is a 'Gram Formula Weight'; that is, 1 GFW = 1 mole wt.
At this point it is assumed that you understand how to balance simple chemical equations by inspection. That is, by the Law of Mass Balance ...
total mass of reactants = total mass of products
In problem 1 you are given iron (Fe) + molecular oxygen (O₂) => iron(III) oxide (Fe₂O₃) ... 4Fe + 3O₂ => 2Fe₂O₃ ... ∑mass R = ∑mass P.
Now, focus on the coefficients of each substance, that is, 4 for Fe, 3 for O₂ and 2 for Fe₂O₃. These values (coefficients) are moles of each substance in a special type of equation called the 'Standard Equation'. The Standard Equation is one which when balanced its coefficients are in the smallest whole number mole ratio of substance. That is the equation above is showing 4 moles of Fe, 3 moles of O₂ and 2 moles of Fe₂O₃. This is important in that most balanced equations that will be given in textbook problems will be in Standard Form.
From the Standard Form, the coefficients can be doubled, or divided in half, or whatever multiple or fraction one desires. The reaction would still perform in correct proportions. However, the multiples or fractions would not be in Standard Form. Most, if not all, stoichiometry problems will provide only the Standard Form.
Example, let's take the given equation above (from problem 1)
4Fe + 3O₂ => 2Fe₂O₃.
Both of the following are in correct proportions and will react with respect to the proportions YOU choose ...
(multiply by 2) => 8Fe + 6O₂ => 4Fe₂O₃.
(dividing by 2) => 2Fe + 3/2O₂ => Fe₂O₃.
Both are balanced and conform to the Law of Mass Balance but are not in Standard Form. Oh, and the Standard Form equations are assumed to be at 0°C and 1 atm, even if not specified in the problem. You may not need that now, but will become important in Gas Laws.
Let's move on to stoichiometry calculations. There are several methods being taught within the chemed. community, but I'm going to focus only on using mole ratios.
My approach begins with this rule => convert reaction data to moles, solve using mole ratios and convert to needed dimension at the end of the problem. This will simplify a lot of problems once you understand what it's about.
OK, for problem 1 ...
How many molecules of Fe₂O₃ can be produced from 10.5 moles of O₂?
Given the Standard Form equation 4Fe + 3O₂ => 2Fe₂O₃.
Now, write (neatly) the equation and list the givens under the specific substances ...
4Fe + 3O₂ => 2Fe₂O₃.
ex* 10.5 moles ? molecules note: ex* = excess (not used)
In this problem, since O₂ is already in terms of moles no conversion needed.
What you need to focus on is the relationship between the coefficients of O₂ and Fe₂O₃. Note that the coefficient of Fe₂O₃ is SMALLER than the coefficient of O₂. This means that the number of moles of Fe₂O₃ formed will be smaller than moles of O₂ given, that is 10.5 moles. How much smaller? Easy Calculation => Take the coefficient of O₂ and the coefficient of Fe₂O₃ and make a ratio of the numbers that will make 10.5 SMALLER. That is, you should use 2/3(10.5) to get a smaller number, not 3/2(10.5) because that would give a larger number and inconsistent with the ratio given in the balanced equation.
So, moles of Fe₂O₃ produced = 2/3(10.5) moles Fe₂O₃ = 7 moles Fe₂O₃. Note that 7 moles is smaller than 10.5 moles.
Now, the number of molecules of Fe₂O₃ is also an easy calculation.
Remember that 1 mole contains 6.02 x 10²³ particles, then 7 moles would contain ...
= 7 moles Fe₂O₃ x 6.02 x 10²³ molecules Fe₂O₃/mole Fe₂O₃
= 4.21 x 10²⁴ molecules Fe₂O₃.
Go to 2nd post for problem 2 solution.
PLEASE HELP
which of the following has the smallest ionic radii?
1. K
2.Na
3.Ca
4.Mg
Answers
Answer:
sodium, Na
Explanation:
Na, is the smallest with atomic number 11 and it has one valence electron
write and balance the equation for the complete combustion of pentane, c5h12. what is the coefficient on oxygen gas, after it is balanced?
Answers
The balance equation for the complete combustion of pentane,C₅H₁₂ is
C₅H₁₂ (l) + 8 O₂ (g) ⇒ 5CO₂(g) + 6H₂O(g). with the coefficient of oxygen gas after balance is 8.
The balance equation can be write as follows;
first we should Understand the combustion of hydrocarbons. Pentane C₅H₁₂ is A hydrocarbon, or molecule with only carbon and hydrogen atoms. There are usually two predicted byproducts when we discuss the combustion of hydrocarbons: CO₂ and 6H₂O.
Remembering that "reaction with O2" refers to combustion, we may construct the following equation:
C₅H₁₂ (l) +O₂ (g) ⇒CO₂(g) + H₂O(g)
Consequently, by counting the number of atoms in each side of the equation, we may find the equation's balance.
Right side: 5 C atoms, 12 H atoms and 2 O atoms
Left : 1 C atom, 2 H atoms and 3 O atoms
By multiplying CO₂ by 5, we can start to create a balance:
C₅H₁₂ (l) +O₂ (g) ⇒ 5CO₂(g) + H₂O(g)
We can now multiply H₂O by 6 to obtain 12 H in the Left side:
C₅H₁₂ (l) +O₂ (g) ⇒ 5CO₂(g) + 6 H₂O(g)
The LHS now has 16 O, it should be noted. Let's then multiply O₂ by 8:
C₅H₁₂ (l) + 8 O₂ (g) ⇒ 5CO₂(g) + 6H₂O(g)
and we can see the coefficient of oxygen is 8
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if life had existed during thie won the fossils probably would not have survived because
Answers
Answer:
because life would have use fossil for their benefits.
The half-life of strontium-90 is about 29 years. How many half-lives have elapsed when 6.25% of
O 1
02
3
оо
Answers
The question is incomplete, the complete question is;
The half-life of strontium-90 is about 29 years. How many half-lives have elapsed when 6.25% of a strontium- 90 sample remains in the container?
Answer:
4 half lives
Explanation:
From;
N/No = (1/2)^t/t1/2
N= amount of strontium-90 present at time t
No= amount of strontium-90 originally present
t= time taken
t1/2 = half life of strontium-90
But N= 0.0625No
Hence;
0.0625No/No = (1/2)^t/29
0.0625 = (1/2)^t/29
(1/2)^4 = (1/2)^t/29
4 = t/29
t = 4 × 29
t= 116 years
Hence four half lives have elapsed
Compounds are pure substances. What other substances are considered pure substances?
A) Chemical reactions
B) Elements
C) Mixtures
D) Solutions
Answers
Answer:
b
Explanation:
i am smart
All elements are mostly pure substances. A few of them include gold, copper, oxygen, chlorine, diamond, etc. Compounds such as water, salt or crystals, baking soda amongst others are also grouped as pure substances.
Explanation:
\(\Large\textbf{C) Mixtures}\)
please help asap !! i don’t know if that’s the right answer
Answers
Answer:
b, c and d (last three options)
Explanation:
It can't be the first one because:
On the left hand side there is one of everything and then on the right, ther is one zinc, two chloride and 2 hydrogen atoms. It is unbalanced
Second one:
there are 8 carbons on both sides, 20 hydrogens on both sides and 26 oxygen on both sides. It is balanced
Third
1 copper on both sides, 2 hydrogens on both sides and 1 oxygen on both sides. It is balanced
Fourth
4 silver on both sides and 2 oxygens on both sides
Why is the average atomic mass used when calculating grams of a
substance?
A. The exact weights of the isotopes are not known.
B. The elements in the substance are mixtures of their isotopes.
ОО
C. The average atomic mass is known to more significant figures.
D. The number of isotopes in the sample is constantly changing.
Answers
Answer:
The average atomic mass includes all of the isotopes of that atom which exist in nature. Almost all elements have at least two isotopes which naturally occur. Recall that isotopes are atoms with the same atomic number (protons), but a different number of neutrons.
How many electrons do inert gases have in their valence shells?
Answers
Lewis proposed that the eight valence electrons in inert gas atoms make them chemically inert.
A gas is said to be inert if it does not readily react chemically with other substances and does not afterwards produce chemical compounds. The noble gases, also known as the inert gases in the past, frequently do not react with numerous things.
Typically, inert gases are employed to stop unintended chemical reactions from deteriorating a sample. With the oxygen and moisture in the air, these unfavorable chemical processes frequently involve oxidation and hydrolysis.
Several of the noble gases can be made to respond when particular conditions are met, hence the phrase "inert gas" is context-dependent. Due to its large natural abundance (78.3% N2, 1% Ar in air) and cheap relative cost, purified argon gas is the most often utilized inert gas.
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PLEASE HELP ME, 20 POINTS
How many atoms are in 25.00 g of Li.
Question 1 options:
2.393 x 1024 atoms of Li
1.333 x 1023 atoms of Li
2.16 x 1026 atoms of Li
2.17 x 1024 atoms of Li
How many grams is 2.393 x 1024 atoms of Cl
Question 2 options:
70.45 g Cl
140.9 g Cl
140.9 mole Cl
70.45 mole Cl
How many atoms are in 25.00 g of B.
Question 3 options:
1.393 x 1024 atoms of B
1.333 x 1023 atoms of B
2.16 x 1026 atoms of B
2.17 x 1024 atoms of B
How many grams is 2.393 x 1024 atoms of O
Question 4 options:
70.45 g O
140.9 g O
63.58 mole O
63.58 g O
Answers
Explanations:
Question 1: Lithium in 20.00+ g is C. or D., but 25.00+ g is D. which means this is the correct option.
I am unsure of Question 2. I don't think it is mole though.
Question 3: Boron in 25.00-30.00 g is B. or D., but 25.00 g would be C.
Question 4: 2.393 x 1024 atoms of Oxygen is 63.58 mole O. I don't know for sure, but I think this is correct.
I am NOT professional. There is a chance I am incorrect. Please reply to me if I've made a mistake.
when the body is able to keep balance. some examples include getting more oxygen when needed and getting a fever to kill of viruses.
yin
triple beam
Homeostasis
yang
Answers
Answer: Homeostasis
Explanation: Homeostasis refers to stable equilibrium in the body. It is the condition of optimal functioning for a living organism, where no part of the body has excess stress put upon it. Some more examples of homeostasis include maintaining normal body temperature and blood sugar levels.
Answer:
Homeostasis
..・ヾ(。＞＜)シ
Please help me with this questions.
Answers
2. 11
3. Alkali metals
4. Increases
5. Increases
7. Seven
8. Less
9. hydrogen
10. Idk
a tank contains 1.5 moles of gas a, 2.0 moles of gas b, and 2.5 moles of gas c. if the total pressure of the gas mixture is 0.80 atmospheres, what is the partial pressure of gas a?
Answers
The term "partial pressure" refers to the amount of pressure that each gas in a mix exerts. A mole fraction of the a gas,x, can also be used to formulate Dalton's law.
The partial pressure formula: what is it?
Partial pressures can be calculated in one of two ways: 1) To determine the individual pressures of each gas in a mixture, use PV = nRT. 2) Determine the proportion of pressure from of the total pressure that may be assigned to each single gas by using the molar concentration of each gas.
What is the name for partial pressure?
The idea of partial pressure is derived from the fact so each individual gas contributes to the overall pressure in a given proportion, which corresponds to its partial pressure. In order to characterise all the pieces, it is essentially equivalent to taking a percent or proportion of the whole.
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2.____LiBr + Co(SO4)2 → Type:_
Answers
4LiBr + Co(SO₄)₂ ----> 2Li₂SO₄ + CoBr₄ is the balanced equation.
First write the complete equation
LiBr + Co(SO₄)₂ ----> Li₂SO₄ + CoBr₄
Now balance the given equation
LiBr + Co(SO₄)₂ ----> Li₂SO₄ + CoBr₄
Reactant Side Product side
Li= 1 Li = 2
Br = 1 S = 1
Co = 1 Co = 1
S = 2 S = 1
O = 8 O = 4
We can see that there are 8 oxygen atom in yhe Reactant side and 4 in the product side. So multiply by 2 in the product side to balance the Oxygen atoms.
4LiBr + Co(SO₄)₂ ----> 2Li₂SO₄ + CoBr₄
We can see that the given equation is now balanced.
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QUESTION: Write the complete equation and also balanced the equation.
_LiBr + _ Co(SO₄)₂ --> _ + _
Acetaminophen is the active ingredient in Tylenol. Calculate the mass of carbon in 99.0 g of acetaminophen (CgH9NO₂) NOTE: Round your typed answer to include 2 decimal places.
Answers
Answer:
6.55 g
Explanation:
The atomic mass of Carbon (C) is 12.0107, of Hydrogen (H) is 1.008, of Nitrogen(N) is 14.0067, and of Oxygen(O) is 15.9994
Therefore the molar mass of acetaminophen = 12.0107 + 4 * 1.008 + 14.0067 + 2 * 15.9994 = 151.16
mass of C in 99.0 g of acetaminophen = (99.0 g / 151.16 g/mol) * 1 mol C/ 1mol acetaminophen
mass of C in 99.0 g of acetaminophen = 6.545 g
Suppose the interaction between two atoms by the Lennard-Jones potential: ULJ = B/r^12 - A / r^6 where the values of A and B are known to be A = 10^-77 J x m^6 and B = 10^-134 J x m^12.
What does the Lennard-Jones potential predict for the separation r=r eq
hen the energy is at the minimum (equilibrium) value, U min. What is the u min fot this interaction at T=298 K ? What is the ratio of U min to the purely attractive van der Waals component of the interaction potential at r eq.
What is the ratio of r eq to r 0 defined by u(r 0 )=0. 4. What is the ratio of r s to r 0 , where r s is the separation where the magnitude of the (attractive adhesion) force is maximum, F max . What is the value for F max between the two atoms?
Answers
a) The Lennard-Jones potential predicts the separation r_eq at the minimum energy U_min.
b) The U_min for this interaction at T=298 K is the value obtained from the Lennard-Jones potential equation when r=r_eq.
c) The ratio of U_min to the purely attractive van der Waals component of the interaction potential at r_eq can be calculated by comparing the attractive part (-A/r^6) to the total potential energy U_min.
d) The ratio of r_eq to r_0, where u(r_0)=0.4, can be determined by finding the value of r_eq where the potential energy is equal to 0.4 times the total potential energy at r=r_0.
e) The ratio of r_s to r_0, where r_s is the separation where the magnitude of the attractive adhesion force is maximum, can be determined by finding the value of r where the derivative of the potential energy with respect to r is equal to zero.
f) The value of F_max between the two atoms can be obtained by taking the negative derivative of the potential energy equation with respect to r and evaluating it at r=r_s.
a) The Lennard-Jones potential provides information about the relationship between energy and separation between two interacting atoms.
At the minimum energy (U_min), the potential predicts the separation r_eq, which corresponds to the equilibrium distance between the atoms. This is the distance at which the energy of the system is at its lowest point.
b) To determine the value of U_min at a given temperature (T=298 K), you can substitute the equilibrium separation r_eq into the Lennard-Jones potential equation and calculate the resulting energy value.
This will give you the U_min for the interaction.
c) The Lennard-Jones potential consists of two components: an attractive component (-A/r^6) and a repulsive component (B/r^12).
The ratio of U_min to the purely attractive van der Waals component of the interaction potential at r_eq can be calculated by comparing the magnitude of the attractive component to the total potential energy at the equilibrium separation.
This ratio provides insights into the relative contribution of the attractive force to the overall potential energy at equilibrium.
d) The ratio of r_eq to r_0 can be determined by finding the value of r_eq where the potential energy is equal to 0.4 times the total potential energy at r=r_0.
In other words, you need to solve the Lennard-Jones potential equation for r_eq when the potential energy is equal to 0.4 times the potential energy at r=r_0.
e) The ratio of r_s to r_0 is obtained by finding the value of r where the magnitude of the attractive adhesion force is maximum.
This can be determined by finding the separation r where the derivative of the potential energy equation with respect to r is equal to zero.
The value of r_s represents the separation at which the attractive force between the atoms is strongest.
f) The value of F_max between the two atoms can be obtained by taking the negative derivative of the Lennard-Jones potential energy equation with respect to r and evaluating it at r=r_s.
This will give you the magnitude of the maximum attractive adhesion force between the atoms.
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Which factor below would be least likely to cause a mutation in the cells of an organism. Select one: a. Radiation b. Smoking c. Sound wave d. Chemical pollution
Answers
Answer:
The correct option is;
c. Sound wave
Explanation:
The given options effect on mutation are given as follows;
a. Radiation
Radiation such as ultraviolet light and gamma radiation, which are electromagnetic waves, cause mutations by causing the formation of free radicals within an organism's cell resulting in the mutation characteristic effects
b. Smoking of tobacco has mutagenic effects due to the presence of several carcinogenic compounds in cigarettes
c. Sound wave is a form of mechanical wave and has no chemical effects on the chemistry of an organism and therefore does not cause mutation in cells
d. Chemical pollution can contain carcinogenic compounds that can cause mutations in the cells of organisms.
12. What are two different ways to turn a turbine to generate electricity without using fossil
fuels?
HELPP
Answers
Answer:
two different ways are 1st by using water and 2nd by using wind these also not harm our environment
which of the following options correctly describe a polyatomic ion? select all that apply. multiple select question. the atoms of a polyatomic ion are held together by covalent bonds. all polyatomic ions are negatively charged. polyatomic ions are found in molecular compounds. the charge on a polyatomic ion belongs to the whole unit. a polyatomic ion always contains two or more different elements.
Answers
A polyatomic ion is a group of atoms that are held together by covalent bonds, and they carry a net electrical charge. Therefore, the correct options are: "the atoms of a polyatomic ion are held together by covalent bonds", "the charge on a polyatomic ion belongs to the whole unit", and "a polyatomic ion always contains two or more different elements."
Polyatomic ions are often negatively charged due to the presence of one or more extra electrons, but they can also be positively charged. They are commonly found in ionic compounds and are formed by the transfer of electrons between atoms. Polyatomic ions are not found in molecular compounds since they are charged entities and can only form ionic bonds with oppositely charged ions.
In summary, a polyatomic ion is a group of covalently bonded atoms with a net electrical charge, and they are often negatively charged, composed of different elements, and participate in ionic bonding.
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Write a balanced chemical equation for each of the following.
a. Gaseous acetylene (C2H2) reacts with oxygen gas to form gaseous carbon dioxide and gaseous water.
Express your answer as a chemical equation. Identify all of the phases in your answer.
b. Chlorine gas reacts with aqueous potassium iodide to form solid iodine and aqueous potassium chloride.
Express your answer as a chemical equation. Identify all of the phases in your answer.
c. Solid lithium oxide reacts with liquid water to form aqueous lithium hydroxide.
Express your answer as a chemical equation. Identify all of the phases in your answer.
d. Gaseous carbon monoxide reacts with oxygen gas to form carbon dioxide gas.
Express your answer as a chemical equation. Identify all of the phases in your answer.
Answers
a. Balanced chemical equation for gaseous acetylene reacting with oxygen gas to form gaseous carbon dioxide and gaseous water is given as; `C2H2(g) + 5O2(g) -> 4CO2(g) + 2H2O(g)`b.
Balanced chemical equation for chlorine gas reacting with aqueous potassium iodide to form solid iodine and aqueous potassium chloride is given as; `Cl2(g) + 2KI(aq) -> I2(s) + 2KCl(aq)`c. Balanced chemical equation for solid lithium oxide reacting with liquid water to form aqueous lithium hydroxide is given as; `Li2O(s) + H2O(l) -> 2LiOH(aq)`d. Balanced chemical equation for gaseous carbon monoxide reacting with oxygen gas to form carbon dioxide gas is given as; `2CO(g) + O2(g) -> 2CO2(g)
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How many atoms of oxygen are in 5h
Answers
Answer:
Hence, number of moles of oxygen in 5 moles of co=5. The number of oxygen atoms present can be obtained by multiplying the moles of oxygen by avogadro's number. so, number of oxygen atoms present =5(6.023× 10²³) =.115×10²³ nos
Name the following three structures.
Answers
The Iupac Name of given three compounds are 3,4,5-trimethylheptane, 2,2,3,3-tetramethylpentane and 2,2- dimethyl-3-ethylpentane.
For (1),
The longest straight chain have 7 carbon compound and having single bond, suffix of this compound is Heptane. Now there are three functional group of methyl there for prefix is trimethyl. Overall the name of compound is 3,4,5-trimethylheptane.
The longest straight chain have 5 carbon compound and having single bond, suffix of this compound is pentane. Now there are four functional group of methyl there for prefix is tetramethyl. Overall the name of compound is 2,2,3,3-tetramethylpentane.
The longest straight chain have 5 carbon compound and having single bond, suffix of this compound is pentane. Now there are three functional group of methyl and ethyl so they write according to alphabetic order. Overall the name of compound is 2,2- dimethyl-3-ethylpentane.
Thus, we concluded that the The Iupac Name of given three compounds are 3,4,5-trimethylheptane, 2,2,3,3-tetramethylpentane and 2,2- dimethyl-3-ethylpentane.
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Which 3 organisms feed on dead matter and waste products?
Earthworm
Ladybug
Fungi
Mice
Bacteria
Answers
Answer:
mice
bacteria
fungi
Explanation:
that's the answer
Balance the following equations
14)__C₂H4 +___O₂ ->_CO₂ +
15)___NaHCO3 -> Na₂CO3 +
16)__ _Cl₂ +
_Cl₂ +_NaBr ->
17)____Na₂S +
NaCl +
H₂O
H₂O + CO₂
Br2
HCI->_NaCl + H₂S
Answers
The balanced chemical equations are as follows:
14. C₂H₄ + 3 O₂ -> 2CO₂ + 2H₂O
15. 2NaHCO₃ -> Na₂CO₃ + H₂O + CO₂
16. 3Cl₂ + 2NaBr -> 2NaCl + Br₂
17. 3Na₂S + 2NaCl + 3H₂O -> 5NaCl + H₂S + 3O₂
What are balanced equations?Balanced equations are equations of chemical reactions that ensure that the law of conservation of mass is true.
In a balanced equation, the number of atoms of each element on both sides of the equation is equal.
The given chemical equations are balanced as follows;
14. Place 3, 2, and 2 before O₂, CO₂, and H₂O respectively.
C₂H₄ + 3 O₂ -> 2 CO₂ + 2 H₂O
15. Place 2 in front of NaHCO₃.
2 NaHCO₃ -> Na₂CO₃ + H₂O + CO₂
16. Place 3, 2, and 2 in front of Cl₂, NaBr, and NaCl respectively.
3Cl₂ + 2NaBr -> 2NaCl + Br₂
17. Place 3, 2, 3, 5, and 3 in front of Na₂S, NaCl, H₂O, NaCl, and O₂ respectively.
3Na₂S + 2NaCl + 3H₂O -> 5NaCl + H₂S + 3O₂
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which solvent to you expect to be the best, if the solute is ch3oh? a. ccl4 b. c6h14 c. c6h6 d. h2o e. all are good f. none are good
Answers
The best solvent for CH3OH (methanol) would be water (H2O) since methanol is highly soluble in water due to its similar polarity.
Methanol (CH3OH) is a polar molecule with a hydroxyl group (-OH) that can participate in hydrogen bonding. When choosing a solvent for CH3OH, the best option would be a polar solvent that can interact with the hydroxyl group and facilitate solubility. Among the given options, water (H2O) is the most suitable solvent for methanol. Water is a highly polar solvent with a strong ability to form hydrogen bonds, making it an excellent choice for dissolving polar substances like methanol. The other solvents listed, such as carbon tetrachloride (CCl4), hexane (C6H14), and benzene (C6H6), are nonpolar solvents and would not provide the necessary interactions to dissolve methanol effectively. Therefore, the best solvent for CH3OH is water (H2O).
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Why is the reaction rate for reactants defined as the negative of the change in reactant concentration with respect to time?
Answers
Answer:
The reaction rate for reactants is negative because the reactants are being used up as the reaction produces from left to right. the rate of the products is positive because they are being formed.
Explanation:
Hope this helps
Claim, Evidence, Reasoning : It is said that early 20th-century Italian tenor Enrico Caruso could
shatter glass with his high notes.There is no evidence to confirm this claim,
but MythBusters' Jamie Hyneman and Adam Savage tested the physics
behind this claim and found that it was possible. Write a scientific
explanation that explains what happens to cause the glass to break.
Answers
Answer: It´s question of resonance
Explanation: I think in case of crystal glass it have
certain structure. There are certain frequencies crystal can vibrate.
High sound frequencies resonate, also give energy to structure vibrations and it vibrates more strongly until structure breaks up.