Answers
Answer:
Answer 4: 2 moles of Carbon atoms.
Explanation:
A mole is an unit of count (equal to around 6.02214076×10^23, but it's immaterial here).
It means that they're asking which has more atoms - X atoms or two times as many atoms?
Of course it's twice as many atoms.
Please note we did not need to use the info that it's Barium, that it's Carbon, or how much exactly is a mole.
The correct answer is option D , 2 moles of Carbon (C) have more atoms.
What is a mole ?A mole is defined as 6.02214076 × 10²³ atoms, molecules, ions, or other chemical units.
In 1 mole of Barium (Ba) there will be 6.02214076 × 10²³ atoms , while
In 2 mole of Carbon (C) there will be twice = 2 * 6.02214076 × 10²³
= 12.04428152 × 10²³ atoms
Therefore option D , 2 moles of Carbon (C) have more atoms.
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Related Questions
8. Write the notation of an atom 'X', if the mass number is A and the atomic number is Z.
Answers
Answer:
[tex]^A_ZX[/tex] is the notion of an atom 'X', if the mass number is A and the atomic number is Z
Explanation:
The symbol of the element is "X"
The notion comprises of symbol of element "X" in the center.
On the upper left side of the symbol mass number "A" is kept and on the lower left side of the symbol, atomic number "Z" is kept.
Thus, notion will be
[tex]^A_ZX[/tex]
Consider the reaction H2(g) + I2(g) Double headed arrow. HI(g) with an equilibrium constant of 46.3 and a reaction quotient of 525. Which direction will the system shift to?
Answers
Answer:
The reaction shifts to the left.
Explanation:
Equilibrium constant (K) = 46.3
Reaction Quotient (Q) = 525
The relationship between Q and K with their implications are given as;
K = Q (No net reaction)
K > Q (Reaction shifts to the right)
K < Q (Reaction shifts to the left)
Since in this question, Q (525) > K (46.3)
The reaction shifts to the left.
please help from the first to last question?
Answers
Answer:
The hypothesis is that you are going to have lots of energy due to \you having the energy drink! so it would be "A" for the first question. For the 2nd question i would have to guess "B"! :) Number 3 wouldn't be "C" because it is a specified the theory, so it might be "A"! Number 4 would be "B" cause you do controlled experiments to prove your hypothesis to make a theory! Hypothesis are built off certain beliefs our guesses you think would happen so I believe it would be "D". Hopefully this helped and have a wonderful day!!
You have two wires made of two different metals (metal A and metal B). Both wires are the same thickness and length. In one circuit, you use the metal A wire. In another identical circuit, you use the metal B wire. The metal A wire gets hot, while the metal B wire does not. Explain
Answers
Answer:
because metal A is not suitable for electric connection and metal B is suitable
A metallic wire is a cylindrical and flexible wire that carries electricity. Metal A wire gets hot as it is not suitable to conduct electricity.
What is a conductor?A conductor is a substance that can carry or pass the electricity and heat through it. The thickness and the length of the wire play a role in resistivity.
The metallic wire with good conductivity passes the electricity easily through it, while bad conductivity results in the release of heat through the wires making them lose energy.
Therefore, metal A wire gets hot.
Learn more about metallic conductors here:
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Answer ASAP Homework
Answers
Answer:
wheres the question??????
Answer:
yes where is question please send questions
HELPPP
I NEED THIS QUESTION ANSWERD How does seasons happen here on earth and what does earths tilt have to do with it? How do I make it summer in one hemisphere and then winter in that same hemisphere
Answers
Answer: Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. When the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.
It's impossible for it to be summer and winter in the same hemisphere because the southern and northern hemispheres have their seasons inverted. For example; when it is summer in the US it is winter in Australia.
Hope this helps :)
20. How many atoms of Lithium (Li) are in the REACTANTS side of the
equation?
Answers
Answer:
2 atoms
Explanation:
The reactants side is the left side of the arrow. Li represents lithium and there is a 2 next do it which indicates that there are 2 lithium particles or atoms
Create a timeline to show how atomic structure was developed over the centuries?
Answers
Answer A`bousi
Explanation:
Why are metals so strong and hard ?
Answers
Answer:
Metals are tough because of an effect called plasticity
Explanation:
if you want to know more go to this site
https://en.wikibooks.org/wiki/A-level_Physics_(Advancing_Physics)/Metals#:~:text=Metals%20are%20tough%20for%20the,This%20effect%20is%20called%20plasticity.
Answer:
The strength of metal depends upon the status of its molecular bonding in the lattice. Stronger the forces stronger will be the metal.
How many moles is 2.80 x 1024 atoms of Si?
Answers
Answer:
4.65 moles of Si.
Explanation:
Most all compounds that contain carbon are organic compounds. An exception is
methane
glucose
carbon dioxide
ammonia
Answers
Answer:
carbon dioxide
it is an exception
hope it helps
A STACK OF BOOKS WEIGHED 5 KILOGRAMS. ONE BOOK, WHICH WEIGHED 1,000 GRAMS, WAS
REMOVED FROM THE STACK HOW MUCH DID THE REMAINING BOOKS WEIGH?
Answers
Answer:
the remaining books weigh 4 kilograms or 4000 grams
A 2.0 L sample of helium is under 760 mmHg of pressure and has a temperature of 300k, if the pressure is raised to 1520 mmHg and the temperature is raised to 400 K, what will be the new volume of gas?
Answers
Answer:
kggyiuol
Explanation:
Is this answer right ?
Answers
Answer:
YESExplanation:
Explanation
#KEEPSTUDYINGYes because it released the most amount of heat overall!!! well done xx
2A → B + C The above reaction is run and it is found that a plot of the natural log of the concentration versus time is linear. This indicates that the reaction is ...
Answers
Answer:
zero order reaction
Explanation:
The seem to be a reaction is zero order as the data only fits to zero order integrated rate law.
Integrated rate law:
[A] = [A]_0 – kt
Here y = [ A] and slope is -k , so when we plot concentration of A with respect to t then we get the equation in the form of line
y = mx + c
So the answer Zero order in [A]
Convert 0.0000000166 mm to scientific notation?
Answers
Answer:
0.0000000166 mm = 16.6×10^-9 mm
This will be the scientific notation.
Name the following compounds:
Answers
Answer:
why
Explanation:
why don't we need to answer, did you already found the answers
Question 1
Balance the following chemical equation. __Li+___f2-->___LIF
Answers
Answer:
2Li + F2 → 2LiF
Explanation:
Hope this helps!
How much does a radish seed plant grows in 1 day?
Answers
Answer:
Sow the seeds 1/4- to 1/2-inch deep and 1 inch apart. Under ideal conditions, spring radish seeds will germinate within three to four days, but may take as long as 10 days.
Explanation:
why do scientist think the earths core have iron in it .
Answers
How does the rate law show how concentration changes affect the rate of
reaction?
A. The rate is expressed as the sum of the concentrations of
reactants raised to some power.
B. The rate is expressed as the difference between the
concentrations of reactants.
C. The rate is expressed in terms of concentrations of the reactants
raised to some power.
D. The rate is expressed as a ratio of the concentrations of reactants
raised to some power.
SUBMIT
Answers
Answer: C
Explanation: I just did it
The rate law show how concentration changes affect the rate of
reaction. The correct statement is "The rate is expressed in terms of concentrations of the reactants raised to some power".
So, the correct option is C.
What is the rate law?The rate law is a mathematical expression which give relation between rate of reaction to the concentration of reactant.
Let suppose the reaction, A + B → C
Rate law is written as, rate = [A]n[B]m
Where, n and m is order of reaction which determine by experimental.
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What does it mean to neutralize a chemical solution?
Answers
Answer:
A neutralized solution in chemistry refers to the reaction between an acid and base that results in a neutral balance, or a measure of 7 on the pH scale.
Explanation:
can someone answer the 4 questions? (4 is optional) it would really help me out thanks
Answers
Answer:
1)Energy converter is the transformation of one form of energy into another form .It is more specifically that the term energy conversions refers to the process through which energy is changed into forms that are useful to humans .For 100 of years humans have used an array of devices and systems for this purpose.
2) The three energy converters that you or your family use regularly are
Electric Iron Electric BulbElectric generator3)The three kinds of power plants that produce electricity in Ontario are
Nuclear Power PlantsHydroelectric Power PlantsGeothermal Power Plants4)A power plant is an industrial facility that generates electricity from primary energy most of the power plants use one more generators that convert mechanical energy into electrical energy in order to supply power to the electrical grid for society's electrical needs.
may be this was ur answer for ur question u wanted
A 1.0L buffer solution contains 0.100 molHC2H3O2 and 0.100 molNaC2H3O2. The value of Ka for HC2H3O2 is 1.8×10−5. Calculate the pH of the solution upon the addition of 10.0 mL of 1.00 MHCl to the original buffer.
Express the your answer to two decimal places.
***will mark Brainliest for right answer ***
Answers
pH = pKa = -log(1.8*10–5) = 4.74
0.0100 L • 1.00 M = 0.0100 mol HCl, which reacts with the conjugate base, producing 0.0100 mol of weak acid.
You now have 0.110 mol weak acid and 0.090 mol conjugate base. Use the Henderson-Hasselbach equation to solve for pH now.
pH = 4.74 + log(0.090/0.110) = 4.65
The equation technically says to use concentrations of the acid and base, but that doesn’t actually matter, because it would give the same answer.
An ionic compound that conducts electricity is called an ______
Answers
Answer:
Electrolyte
hope it helps and your day will be full of happiness
Which molecule will undergo only London dispersion forces when interacting with other molecules of the same kind? a.HCl b.C2H5OH c.NH3 d.CH4
Answers
Answer:
CH4
Explanation:
London dispersion forces are a type of force acting between atoms and molecules that are normally electrically symmetric; that is, the electrons are symmetrically distributed with respect to the nucleus. They are part of the van der Waals forces(Wikipedia). It is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dipole attraction(Chem Purdue).
If we consider HCl, C2H5OH and NH3, we will discover that they all have polar bonds. Consequently, dipole - dipole interaction as well as hydrogen bonds exist between their molecules.
CH4 is nonpolar. Being a nonpolar molecule, the only possible intermolecular interaction forces between its molecules is the London dispersion forces.
Look at the dots around each symbol and the energy levels from the resources above;
Answer the questions in the text entry option for this assignment.
Copy and paste questions and respond in complete sentences.
Include a space between each question.
Be specific with your responses for each question. Assume your reader has no knowledge of the subject and you are teaching them via your answers.
Please answer the following questions:
Why does Na have only one dot?
Why do none of these diagrams show more than 8 dots?
What relationship do you notice between the dots in these two charts?
The number of dots that hydrogen and helium have in their dot diagram is the same as the number of electrons shown for them on the Periodic Table. Why? (Hint: Octet Rule (Links to an external site.))
Answers
Hello! Here's the answer I was able to come up with:
Why does Na have only one dot?
Sodium, or Na, has only one valence electron. (This makes the atom tend to participate in ionic bonding and "give" its single valence electron to an atom like chlorine.)
Why do none of these diagrams show more than 8 dots?
It is physically impossible for an atom to have more than 8 electrons in its valence layer, according to the Octet Rule.
What relationship do you notice between the dots in these two charts?
The dot diagram for each element represents the number of electrons each element will have in its outermost, or valence, shell. (2-8-8)
The number of dots that hydrogen and helium have in their dot diagram is the same as the number of electrons shown for them on the Periodic Table. Why?
An atom can have a maximum of two electrons in its innermost layer. Hydrogen and helium have only one and two electrons, respectively, so they don't have enough electrons to actually have more than one layer. Therefore, their outermost layer is, in fact, their only layer. This is why the number of dots that hydrogen and helium have in their dot diagram is the same as the number of electrons shown for them on the Periodic Table.
Don't copy this word for word! You will most likely be in trouble for plagiarism. Instead, rewrite these ideas in your own words, or paraphrase. Good luck, and I know you can do it! ♥
Predict the shape of the molecule.
B. trigonal planar
A. linear
D. bent
C. tetrahedra
Answers
PLEASE HELP I WILL MARK YOU BRAINLIEST How many moles of FeCl2 do you need to react 5 moles of Cl2?
Answers
Answer:
1. Ok, so you have a 1:1 ratio of FeCl2 to FeCl3, which is shown by the fact that if you react 2 moles of FeCl2 you get 2 moles of FeCl3. So therefore, if you react 4 moles of FeCl2, you'd form 4 moles of FeCl3.
2. You have a 1:2 ratio of Cl2 to FeCl2, for every 1 mole of Cl2, you need 2 moles of FeCl2, so therefore, for 7 moles of Cl2, you need 2x7moles = 14 moles
3. 1:1 ratio. So you start with 2.28moles.
4. 1:2 ratio of Cl2 to FeCl2, so therefore to get from FeCl2 to Cl2 you need to divide by 2. Therefore, you need 3.25moles / 2 = 1.625 moles
Explanation:
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Help!!!!!! i have not done science since December!!!!!!! _________ is the distance traveled during a specific unit of time.
Answers
Answer:
Velocity is the distance traveled during a specific unit of time