If 30.0 ml of 0.15 m ba(oh)2 was needed to neutralize 50.0 ml of an h3po4 solution. what is the concentration of the original h3po4 solution?

Answer:

I'm am so cool I'm depressed tho so yeah good job lady

Explanation:

Answer:

atom

Explanation:

The smallest representative particle of an element is an atom.

Atoms are the fundamental building blocks of matter and the smallest unit of an element that retains the chemical properties of that element. Each atom consists of a nucleus at the center, composed of positively charged protons and neutral neutrons, surrounded by a cloud of negatively charged electrons.

Atoms combine to form molecules or ions through chemical reactions, but they themselves represent the basic structure and identity of an element. Each element has a unique number of protons in its nucleus, known as its atomic number, which determines its position on the periodic table and its distinct chemical properties.

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The statement that accurately describes a fission reaction is that more energy is required to split the nucleus of an atom than the energy actually released during a fission reaction. That is option A.

Fission reaction is defined as the disintegration of a heavy unstable nucleus into two or more smaller nuclei with the release of energy.

The energy required to split the unstable nucleus is greater than the one released because heavy elements are involved.

Therefore, the statement that accurately describes a fission reaction is that more energy is required to split the nucleus of an atom than the energy actually released during a fission reaction.

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Answer: A.

Explanation:

Answer:

A. Linear molecule with one domain.

Hope this helps! :)

Explanation:

See the attached image.

Approximately 78% of the atmosphere is made up of nitrogen gas.

The atmosphere is the thin layer of gases that surrounds the Earth. It's made up of many different types of gases, including nitrogen (78%), oxygen (21%), and trace amounts of other gases like carbon dioxide and helium. Nitrogen, which is an inert gas, does not participate in any chemical reactions or processes in the Earth's atmosphere. Nitrogen, which is an essential component of amino acids, makes up a significant portion of the Earth's atmosphere, including its air. This gas is also used in a variety of industrial processes, including the production of fertilizers, explosives, and semiconductors.

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Answer: Beta Decay is the kind of radioactive decay that has the net effect of changing a neutron into a proton.

Explanation:

The opposite path, in which a neutron becomes a proton, is also possible. Exactly what happens is that a weak force changes the flavor of the card from top to bottom and vice versa. When this happens, the quark emits a W boson, which quickly decays into either an electron/antineutrino pair or a positron/neutrino pair, depending on the direction of change (neutron decays to protons, electron/antineutrino pairs are created).

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The 2019 Nobel Prize in Chemistry was awarded to John B. Goodenough, M. Stanley Whittingham, and Akira Yoshino for the development of lithium-ion batteries.

A lithium-ion or Li-ion battery is described as a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy.

Professor Goodenough a  at the University of Texas, discovered that lithium cobalt oxide can be used as a cathode in batteries.

Professor  Whittingham, at Binghamton University, developed the first functional lithium-ion battery by using a lithium metal anode and a titanium disulfide cathode.

Yoshino, a researcher at Asahi Kasei Corporation and Meijo University, removed the lithium metal from the anode, making the battery safer and longer-lasting by using petroleum coke instead.

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The possible molecular formula of the compound is C3H6.

What is molecular formula?

The  molecular formula is an expression of  that defines the number of the  atoms of each element in one of the  molecule of a compound. It is  shows the actual number of each atom in a molecule.

Sol-

Let's take the mass weight of compound= 42g

As per the given question

The empirical formula is CH2.

Empirical weight of CH2 = 12 + (1 × 2) = 12 + 2 = 14

Mass of one mole of the compound = its molecular weight = 42

n = Mol. wt. / Empirical formula wt.= 42 / 14 = 3

So,Mol. formula = ( Empirical formula) × n

Thus the answer is

= (CH2) × 3 = C3H6

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Answer:

1.38g/cm 3

Copper-More Dense than 1.38g/cm 3

The density of copper is greater than the density of corn syrup, therefore,  copper would sink in corn syrup.

The density is the characteristic of the material which can be measured as the mass per unit volume. The average density of a substance is equal to mass divided by its total volume.

The formula that can be used to calculate the density of the material is shown as follows:

Density = Mass/Volume

The S.I. unit of density can be represented as Kg/m³. The density of a substance is an intrinsic characteristic as it does not depend upon the quantity of the substance. Buoyancy pushes less dense materials to the surface therefore, they float.

The density of the corn syrup is 1.38 g/cm³ while the density of the copper is 8.80 g/cm³. Therefore, copper is denser than corn syrup so it will sink in corn syrup.

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Yes, a hamster with a defective gene for the enzyme liver lactate dehydrogenase could meet the extra ATP demand for prolonged, fast wheel-running by maintaining a high rate of glycolysis, but it would come at a cost.

Hamsters, like other animals, use ATP (adenosine triphosphate) as their energy source for muscle contractions. Aerobic respiration and anaerobic respiration are two forms of energy production in hamsters. Aerobic respiration uses oxygen and glucose to generate ATP, whereas anaerobic respiration uses only glucose to generate ATP.

In normal animals, when they run for an extended period of time, their aerobic respiration system takes over to produce the ATP required for energy. However, when oxygen supply becomes limited, anaerobic respiration takes over, causing the muscle tissue to produce more lactic acid. This lactic acid diffuses into the bloodstream and reaches the liver, where it is converted to glucose via gluconeogenesis by liver lactate dehydrogenase (LDH). This glucose is then released into the bloodstream, where it can be used by the muscle cells to produce ATP via anaerobic respiration.

As a result, the hamster will be unable to run for extended periods of time at high speeds because its body will not be able to generate enough ATP via anaerobic respiration to keep up with the energy demand. However, the hamster might still be able to meet the ATP demand by increasing the rate of glycolysis. Since the hamster's muscle LDH is not defective, it can convert pyruvate into lactate via LDH, and the lactate can be released into the bloodstream, where it can be taken up by the liver and converted into glucose via gluconeogenesis.

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Answer:

The answer is A, B, and D

Explanation:

A: China burned coal more than wood for heat.

B: Marco Polo wrote about a new energy source from China.

D: Marco Polo helped spread technology and ideas all through out Europe.

The 4-methyl pentane-2-ol (\(C_6H_{14}O\)) is an alcohol compound with a methyl group attached to the fourth carbon atom and a hydroxyl group attached to the second carbon atom in a five-carbon chain.

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B. when water changes state from a solid to a liquid, thermal energy is absorbed.

The process of moving energy from one system to another, such as through the transmission of heat, work, or mass, is known as energy transfer.

It should be noted that the transformation of energy into another form or the transfer of energy from one location to another.

The mode of energy transfer are:

In summary, thermal, radiant, chemical, nuclear, electrical, motional, acoustic, elastic, and gravitational energy are some of the different types of energy.

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Celie is stunned at her way of behaving; She also feels a little bit envious of her bravery. As a consequence of this, Celie reenacts her internalized oppression of Sofia

And endorses the notion that Sofia, a brave and proud woman, should be slain as she has been. She instructs Harpo to beat his wife.

By Alice Walker Sofia figures out that Celie advised Harpo to beat her and she feels deceived. Celie apologises and explains that she only offered Harpo that direction because "I'm jealous of you." I say it cause you do what I can't Battle."

She starts seeing a prizefighter, and while they are in town, she fights Miss Millie, the wife of the mayor. Sofia and the mayor fight, and the police beat Sofia, leaving her deformed and unable to move. She is condemned to 12 years in jail.

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Answer:

c

Explanation:

Earthworms come from eggs. They come out because the rain sounds like predators.

Answer:

A weather station

Explanation:

A weather station measures the wind speed and humidity of a specific area. GIS gives visual data that scientists can analyze, GPS gives the exact location of a weather phenomenon, and a hammer and lens allow scientists to study Earth’s geologic features.

Answer:

The electronegativity difference of the atoms in the bond.

Explanation:

Carbon is electropositive while Oxygen is highly electronegative, hence highly polar due to strong intermolecular forces.

The molecule is not symmetrical because it's dipole moments don't cancel out.

Any three base sequence found on the mRNA that codes for a specific amino acid is called a codon.

The three base of the sequences that are found in the mRNA , the one after another code for the specific amino acid. So, the three bases are together is known as the codons and it based on the codon sequence of the mRNA polypeptides will be produced.

The polypeptides will be formed after the translation and it based on the codons in the mRNA the peptide will be produced.  The coons are the specific for the single amino acid that will makes the codons universal.

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Answer:

D) Matter

Explanation:

1)  moles Al : moles of HCl

        2        :     6

simplifying the ratio;

        1         :    3

2)  \(HCl : AlCl_{3}\)

      6    :  2

       3   :  1

3)  \(Al : AlCl_{3}\)

     2 : 2

      1 : 1

4) \(HCl : H_{2}\)

     6    :  3

      2   :  1

5) \(HCl : H_{2}\)

      2   :  1

       6  :  x

x = 6/2

x = 3 moles

6) \(HCl : H_{2}\)

      2   :  1

      12  :  x

x = 12/2

x = 6 moles

7) \(HCl : H_{2}\)

     2   :  1

      3   :  x

x = 3/2 moles

Answer:

D.

Explanation:

Because force and energy are used to move.

Answer:

i think b.

Explanation:

The physical properties of alkenes and alkynes are generally similar to those of alkanes or cycloalkanes with equal numbers of carbon atoms. Alkynes have higher boiling points than alkanes or alkenes, because the electric field of an alkyne, with its increased number of weakly held π electrons, is more easily distorted, producing stronger attractive forces between molecules.

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

volume of ethanol = 423 cm³

density = 0.789 g/cm³

So we have

mass = 0.789 × 423 = 333.747

We have the final answer as

Hope this helps you

Silicone elastomers are not compatible with refrigerants that contain high levels of chlorine or fluorine.

Chlorine-based refrigerants such as R22 and R502, as well as fluorine-based refrigerants like R134a and R404a, can cause degradation of the silicone material, leading to failure of seals and gaskets. This can result in leaks, reduced system efficiency, and potential safety hazards. As a result, it is important to choose the right type of seal and gasket material for the specific refrigerant being used. Alternative materials such as nitrile rubber or fluorosilicone may be better suited for use with certain refrigerants. When selecting seal and gasket materials, it is important to consider the compatibility with the refrigerant, as well as the operating conditions and application requirements to ensure optimal performance and reliability.

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Let's compare the Z, N, and A values for each pair of atoms:
(a) 3H1 and 3He2:
- 3H1: Z=1, N=2, A=3
- 3He2: Z=2, N=1, A=3
The Z and N values are reversed, while the A values are equal.
(b) 14C6 and 15N7:
- 14C6: Z=6, N=8, A=14
- 15N7: Z=7, N=8, A=15
Z values differ by 1, N values are equal, and A values differ by 1.
(c) 19F9 and 18F9:
- 19F9: Z=9, N=10, A=19
- 18F9: Z=9, N=9, A=18
Z values are equal, N values differ by 1, and A values differ by 1.

For the first pair of atoms, 3 H 1 and 3 He 2, the z value (atomic number) is different as hydrogen has 1 proton while helium has 2. The n value (number of neutrons) is also different as helium has one more neutron than hydrogen. However, the a value (mass number) is the same for both, which is 3.
For the second pair, 14 C 6 and 15 N 7, the z value is different as carbon has 6 protons while nitrogen has 7. The n value is also different as nitrogen has one more neutron than carbon. Therefore, the a value is different for both, with carbon having an a value of 14 and nitrogen having an a value of 15.
Finally, for the third pair, 19 F 9 and 18 F 9, the z value is different as fluorine has 9 protons while the other fluorine atom has 1 less proton. However, the n value is the same for both, which is 10. Therefore, the a value is different for both, with the first fluorine atom having an a value of 19 and the second having an a value of 18.
Overall, the z, n, and a values can vary for different pairs of atoms depending on their atomic structure and composition.
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The following balanced equation: Cl₂(g) + 6OH–(aq) → ClO₃–(aq) + 5Cl–(aq) + 3H₂O(l)The coefficients in front of Cl₂ and OH– in the balanced reaction are 1 and 6 respectively.

The balanced redox reaction that occurs in basic solution with the given equation is given as follows:

First, the unbalanced equation is: cl₂(g) → clo₃-(aq) cl-(aq)To balance this reaction, the oxidation state of each element must be determined. In this reaction, Cl₂ is oxidized from 0 to +5, and therefore it is the reducing agent. The product ClO₃– is reduced from +5 to -1, making it the oxidizing agent.

To balance the equation in basic solution, the following steps are taken: Split the reaction into half-reactions. Balance each half-reaction. Write the balanced half-reactions together and simplify them. This gives the balanced overall equation.

The half-reactions are: Oxidation half-reaction:Cl₂(g) → ClO₃–(aq) Reduction half-reaction: Cl₂(g) → Cl–(aq)The oxidation half-reaction is balanced as follows: Cl₂(g) → ClO₃–(aq) + 6OH–(aq) + 5e–The reduction half-reaction is balanced as follows:Cl₂(g) + 2e– → 2Cl–(aq) Combining the two half-reactions, we get the following balanced equation:Cl₂(g) + 6OH–(aq) → ClO₃–(aq) + 5Cl–(aq) + 3H₂O(l). The coefficients in front of Cl₂ and OH– in the balanced reaction are 1 and 6 respectively.

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Answer:

An ionic bond is a chemical bonding involving the attraction between oppositely charged ions

Explanation:

On the periodic table, elements from group 1 and 7 are attracted to each other and when they bond, it's called ionic bonding. This is because of their valence electrons and ions.

Answer:

Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds. It is one of the main types of bonding along with covalent bonding.

The reaction of CH₃CH₂MgBr with CH₃COCH₂CH₃ gives the product , the right answer of choice is : an achiral product.

An achiral product is the identical with  its mirror image. the achiral compound is superimposable on its mirror image. an achiral product is the product which is as same as its mirror image . the achiral compound is superimposable. while the chiral object is not identical with its mirror image. the chiral compound is not superimposable it its mirror image.

Thus, an achiral product is formed by the reaction of the CH₃CH₂MgBr with CH₃COCH₂CH₃ which is superimposable to its mirror image.

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