20 cm3 of 1m ba(oh)2 solution and 80cm3 of 0.2m hcl solution are mixed together. the concentration of h+ in the final solution

Answer:

Reduction

Explanation:

Oxidation is a process that involves loss of electrons.

Reduction is a process that involves gain of electrons.

In this equation, the electrons (4e-) are in the reactant side. This means that it is gain of electrons.

The reaction is a reduction reaction.

So,

First of all, there are too many types of intermolecular forces:

1. Dispersion forces: London dispersion force is a weak intermolecular force between two atoms or molecules in close proximity to each other. The force is a quantum force generated by electron repulsion between the electron clouds of two atoms or molecules as they approach each other. Every molecules have this kind of force.

2. Dipole: Dipole-dipole forces are attractive forces between the positive end of one polar molecule and the negative end of another polar molecule. They are much weaker than ionic or covalent bonds and have a significant effect only when the molecules involved are close together (touching or almost touching).

3. Hydrogen-bonding: Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very electronegative atom.

Let's begin with hypobromous acid (HBrO).

HBrO is a compound that can form Hydrogen bonds since there's a hydrogen atom bonded to an Oxygen atom.

This compound also presents dispersion forces since atoms are close to each other.

And, there's also dipole-dipole forces because as you can see, there's a positive end (H+) and a negative end (BrO-).

Now, let's analyze SiH4:

SiH4 is composed of molecules, for which the only intermolecular forces are London dispersion forces.

There's no Hydrogen Bonding because Hydrogen can't bond to a very electronegative element such as O, N or F.

As you see, Si is not a very electronegative element.

And, there's not dipole-dipole forces because there's not a positive or a negative end. In this compound, H and Si share all their electrons but there's not any charges when they are close together.

Let's check now Oxygen difluoride (OF2):

As you can notice, London dispersion forces are present in all compounds, so, this is the first force identified.

Now, there's not Hydrogen, so, this molecule can't form Hydrogen-Bonds with itself.

If we look at the dipole-dipole forces, we can clearly notice that OF2 is a bent polar molecule. That means that it actually has this kind of force.

And, finally, carbon monoxide (CO):

Because CO is a polar molecule, it experiences dipole-dipole attractions.

We also know that there's London dispersion forces.

There's no Hydrogen Bonding in this molecule.

The two statements made are generally true in most circumstances.

An acid-base pair that differs by one proton is referred to as a conjugate pair. A conjugate acid-base pair is a pair of substances that can both absorb and donate hydrogen ions to one another.

A proton is added to the compound to create the conjugate acid, and a proton is taken out to create the conjugate base.

Both of the statements are generally true.

The first statement is known as the Brønsted-Lowry concept of acid-base theory, which states that an acid is a proton (H+) donor, and a base is a proton acceptor. The strength of an acid is related to its ability to donate protons, while the strength of a base is related to its ability to accept protons. In this context, the statement that there exists an inverse relationship between acid strength and conjugate base strength is correct. This means that a strong acid will have a weak conjugate base, and a weak acid will have a strong conjugate base.

The second statement is also generally true. A strong acid is one that readily donates a proton to a base, and as a result, it tends to form a weak conjugate base. This is because a strong acid has a strong tendency to hold onto its protons, so when it loses a proton, the resulting species is less likely to accept a proton. In contrast, a weak acid is one that does not readily donate a proton, and as a result, it tends to form a stronger conjugate base. This is because a weak acid is more likely to lose a proton, so the resulting species is more likely to accept a proton.

Overall, the relationship between acids and bases and their conjugates is complex and can depend on a variety of factors such as the nature of the acid or base, the solvent used, and the temperature and pressure of the reaction. However, the two statements presented are generally true in most situations.

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The following two statements are true about chemical kinetics.

1. Chemical  kinetics is the study of the rate of reactions.
2. A reaction rate can be defined as the decrease in the concentrations of reactants with time.

Chemical kinetics deals with the study of rate of chemical reactions. Rate of reaction is defined as  the measure of the change in concentration of the reactants or the change in concentration of the products per unit time.

The reaction rates decrease with time because reactant concentrations decrease as reactants are converted to products. The rate decreases as the reaction proceeds.

               A→B

A= reactant        rate of reaction =-\(\frac{d[A]}{dt}\)

B=product          rate of reaction=+\(\frac{d[B]}{dt}\)

This means that the concentration of 'A' decrease  with respect to time. It can also be noted by measuring the increase in the Concentration of B with the passage of time.

Negative sign indicates the conc. of reactants decreases with time

Positive sign indicates that conc. of product increases with the passage of time .Remember rate of reaction always positive.

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Answer:

if an object weighs more than an equal volume of water, it is more dense and will sink, and if it weighs less than an equal volume of water, it is less dense and will float.

Explanation:

Hope that helps

Answer:

a

Explanation:

The two statements that apply about boiling water on Venus are:

What impact does pressure have on boiling point?

Because the boiling point is the point at which the vapour pressure equals or exceeds the atmospheric pressure, the amount of energy needed to boil a liquid increases as pressure increases.

Explanation:

According to the definition given earlier, anything reaches its boiling point when its vapour pressure reaches or exceeds that of the atmosphere. More and more particles have the energy to transition into the gas phase as temperature rises. As a result, the liquid boils as the vapour pressure rises to equal or higher than atmospheric pressure.

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Question:

The planet Venus is surrounded by a thick layer of gases. In fact, the atmospheric pressure on Venus is over 90 times greater than the atmospheric pressure on Earth. Which statements are true about boiling water on Venus? Choose the two (2) statements that apply.

A. The temperature of water will remain constant while it boils.

B. Water will boil at a higher temperature on Venus than on Earth.

C. Water will boil at a lower temperature on Venus than on Earth.

D. The temperature of water will increase as it boils.

The compounds that will ionize in water include \(H_2SO_4\), \(NaCl\), and \(MgBr_2\). Options 1, 3, and 5.

Ionic compounds are compounds that are formed when two ions become bonded together by ionic bonding. One of the ions is positively charged and is referred to as the cation while the other is negatively charged and is referred to as the anion.

The compound in itself is neutral, however. But when they are dissolved in water, they ionize into their respective ionic components.

Ionic compounds are usually formed between metals and non-metals. The metals, being always ready to lose electrons, form the cation while the non-metals, being always ready to gain electrons, form the anion. Hydrogen behaves like metal because of its readiness to donate an electron.

Thus, from the available options, the compounds that will ionize in water are  \(H_2SO_4\), \(NaCl\), and \(MgBr_2\).

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Answer: 1,2,5

Explanation: Egde 2023

High-quality scientific research is characterized by several key criteria. Three examples of such criteria include: rigorous experimental design and methodology, reliable data analysis and interpretation, and clear and transparent reporting of results.

These criteria ensure that research is conducted in a systematic and reliable manner, leading to trustworthy and valid findings.

Rigorous Experimental Design and Methodology: High-quality scientific research requires a well-designed experimental approach. This involves careful planning, proper control groups, randomization, and replication. A rigorous methodology ensures that experiments are conducted under controlled conditions, minimizing bias and confounding variables, and allowing for accurate and reliable data collection.

Reliable Data Analysis and Interpretation: After data collection, high-quality research involves thorough and appropriate analysis of the data. This includes using appropriate statistical methods to evaluate the significance of the results and drawing valid conclusions. Proper data analysis helps researchers identify patterns, trends, and relationships, supporting or refuting their hypotheses in an objective and reliable manner.

Clear and Transparent Reporting of Results: High-quality research demands transparent reporting of the methods, procedures, and findings. This includes providing detailed descriptions of the experimental setup, data collection processes, and statistical analyses used. Clear reporting allows other researchers to replicate the study and verify its results. Additionally, complete reporting ensures that readers can understand the research methodology and draw their own conclusions based on the evidence presented.

By adhering to these criteria, high-quality scientific research maintains integrity, credibility, and reproducibility. It fosters trust among the scientific community and facilitates the advancement of knowledge by building upon reliable foundations.

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Answer:

Every living organism falls into one of two groups: eukaryotes or prokaryotes. Cellular structure determines which group an organism belongs to. In this article, we will explain in detail what prokaryotes and eukaryotes are and outline the differences between the two.  

Explanation:

Answer:

nucleus

Explanation:

So, the formula mass of nitroglycerin is\(3(12.011)+5(1.00794)+3(14.0007)+9(15.9994)=227.0694 \text{ g/mol}}\)

Therefore, the percent error is

\(\frac{193.7-227.0694}{227.0694} \times 100=\boxed{-14.70 \% \text{ (to 4 sf)}}\)

Answer:

m=175

Explanation:

100/16 = 6.25

6.25x28 = 175

Answer: To solve this equation for m, you can divide both sides of the equation by 0.16. This will give you:

m = 28 / 0.16

Simplifying the right side of the equation gives:

m = 175

Therefore, m = 175.

Explanation:

Answer:

I think the answer is 3. Highest energy level first, so it fills in the inside rings first

Electrons occupy the lower-energy orbitals first, then go on to fill the next higher-energy orbital until all of the electrons contain been placed.

Most of the time, electrons occupy the lower-energy orbitals first, then go on to fill the next higher-energy orbital until all of the electrons have been positioned.

The lowest energy level is always added to initially until it has as many electrons as it can have. The following higher energy level is then filled with electrons, and so on.

The lowest energy level is always filled up with additional electrons first, up to the point where that level can hold no more, and then further electrons are added to the next higher energy level, and so on. A level's total number of orbitals determines how many electrons can be present at that energy.

Therefore, the correct answer is option 3. Highest energy level first, so it fills in the inside rings first.

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Answer:

Neuron Tissues

Explanation:

It is evident from the carbon dioxide phase diagram that the lower tri point contains both the liquid and gas phases.Carbon dioxide is a gas at 273 K and atmospheric pressure.

The triple point is defined as the intersection of the lines.Solid, liquid, and gas are all in equilibrium at the triple point's pressure and temperature.

3 Solid-Vapor Phase Transition, Including Vapor Deposition and Sublimation When the systems pressure rises just above triple point pressure, the solid and liquid phases transition.Direct phase changes between solid & vapor can take place when the systems pressure is lower than the triple point pressure.

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The best reagent for each step is NaNH2, NH2 and CH3I, and HBr.

First of all in the presence of strong base ammonia, we het the clcylated product chain elongation gives but-2-ene followed by bromination gives 2-dibromobutane.

Alkyne using NH3 gets converted into Elongated chain alkyne followed by Hbr.

The reaction of bromine with (E)-stilbene is a classic reaction performed as an example of an electrophilic addition reaction of alkenes. The reaction is stereospecific through an anti addition to the double bond. The traditional reaction uses a bromine solution in methylene chloride, which has very high toxcity.

This bromination reaction demonstrates the stereochemistry of the electrophilic addition of bromine to an alkene. The bromine in this greener approach is generated in situ and eliminates the use of methylene chloride.

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Answer:

sugar and carbon dioxide

Explanation:

Chemical energy is stored in the bonds of sugars. When the bonds of a sugar molecule are broken, a burst of energy is released that the cell can use. Cells can release energy in two basic processes: cellular respiration and fermentation. Cellular respiration requires oxygen, but fermenta- tion does not.

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Answer:

Acidic

Explanation:

the pH scale ranges from 0 to 14, where 7 means the substance is neutral. Less than 7 means the substance is Acidic. Greater than 7 means the substance is Basic.

Remember that the lower the pH is, the more Acidic the substance is. In this case lemon juice is Acidic.

The drawing of Lewis structures for the following polyatomic ions are given attachment:

a. NH₄⁺

b. SO₄²⁻

How to draw Lewis structure?

Step 1 :- find the total number of valence electrons of the combining atoms .For anion , the total negative charge is added to and for cation, the total positive change is subtracted from the number of valence electrons .

total number of valance electrons = 6 + 6 × 4 +2 = 32

step 2 :- The least electronegative atom is placed at the centre, surrounded by highly electronegative atoms .

S occupies central atom surrounded by O - atoms. because

step 3 :- Draw single bond among each atom, and then complete octet of surrounding atoms followed by central atom by assigning lone pair, double bond or triple bond.

What is the Lewis structure?

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The CO32- ion is an anion formed when a carbon dioxide molecule reacts with water. The molecule has a trigonal planar structure, with a carbon atom in the center bonded to three oxygen atoms and a negative charge.

As a result, the carbon atom in the CO32- ion has a formal charge of +2. We must draw the Lewis structure of CO32- with valid resonance structures. Here's how to do it: Step 1: Determine the total number of valence electrons. We will calculate the total number of valence electrons by adding the valence electrons of each atom involved.CO3-2 ion contains 3 oxygen atoms and 1 carbon atom. Thus, Total number of valence electrons = Valence electrons of carbon + Valence electrons of oxygen x 3 + Charge on the ion Total number of valence electrons = 4 + 6 x 3 + 2 = 24 electrons. Step 2: Place the least electronegative atom in the center. We must place the carbon atom in the center because oxygen has higher electronegativity. Step 3: Connect the atoms with single bonds and fill out the octets of the atoms attached to the central atom. We will then add three single bonds between the carbon and oxygen atoms and fill the remaining valence electrons of the oxygen atoms with lone pairs.

Step 4: Add any leftover electrons to the central atom. Finally, we will put the remaining valence electrons on the carbon atom as lone pairs and try to rearrange the electrons to achieve more stable resonance structures.  Resonance structures of CO32-  The total number of resonance structures of CO32- is three.

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Answer:wont

Explanation:

Answer:

so that you can see the different aspects of science

Explanation:

Alternate forms are useful because of the different aspects of the science that they illustrate - Carmen Giunta (a chemist at Le Moyne College in Syracuse, N.Y.)

The period, group, and valence electrons block of the given element with the electronic configuration [Ne] 3s² 3p5 is Period 3, Group 7, p-block.

The periods in the periodic table are the horizontal rows found in the periodic table.

There are 7 periods in the Periodic Table.

Elements in the same period have the same number of electron shells.

The groups in the periodic table are the vertical columns found in the periodic table.

There are 18 periods in the Periodic Table.

Elements in the same group have the same number of valence electrons.

The electronic configuration of atoms can be used to identify the group and period each element belongs to.

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Answer:

the answer is protons and neutrons

Explanation:because

The subatomic particles are found in the nucleus of an oxygen atom are  Protons and Neutrons. Thus, option H is correct.

An electron is defined as a subatomic particle which is charged negatively either bound to an atom or not it means free. The nucleus of an atom is made up of electron, proton and neutron. The electron is a basic particle and electron is not made of anything.

The nature of electron is free it means they are present freely in nature and consist of an atom.The main function of electron is that they play the role of negatively- charged component of an atom.

The electrons are primary source of current conducting and electrons number as well as atomic number of an element is always same or equal. There is no size of electron but the mass of electron is 9×10^-31.

Therefore,The subatomic particles are found in the nucleus of an oxygen atom are  Protons and Neutrons. Thus, option H is correct.

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The molar masses of the compounds are as follows:

Sodium hydroxide (NaOH): 39.99 g/mol. Water (H₂O): 18.

To calculate the molar mass of each compound, we need to determine the atomic masses of the elements in the compound and sum them up according to their respective stoichiometric coefficients.

Sodium hydroxide (NaOH):

The atomic mass of sodium (Na) is 22.99 g/mol, the atomic mass of oxygen (O) is 16.00 g/mol, and the atomic mass of hydrogen (H) is 1.01 g/mol. The stoichiometric coefficients for Na and O are 1, while for H it is also 1.

Molar mass of NaOH = (1 * Na) + (1 * O) + (1 * H) = (1 * 22.99) + (1 * 16.00) + (1 * 1.01) = 39.99 g/mol.

Water (H₂O):

The atomic mass of oxygen (O) is 16.00 g/mol, and the atomic mass of hydrogen (H) is 1.01 g/mol. The stoichiometric coefficient for O is 1, while for H it is 2.

Molar mass of H₂O = (2 * H) + (1 * O) = (2 * 1.01) + (1 * 16.00) = 18.02 g/mol.

Glucose (C₆H₁₂O₆):

The atomic mass of carbon (C) is 12.01 g/mol, the atomic mass of hydrogen (H) is 1.01 g/mol, and the atomic mass of oxygen (O) is 16.00 g/mol. The stoichiometric coefficients for C, H, and O are 6, 12, and 6, respectively.

Molar mass of C₆H₁₂O₆= (6 * C) + (12 * H) + (6 * O) = (6 * 12.01) + (12 * 1.01) + (6 * 16.00) = 180.18 g/mol.

Calcium sulfate (CaSO₄):

The atomic mass of calcium (Ca) is 40.08 g/mol, the atomic mass of sulfur (S) is 32.07 g/mol, and the atomic mass of oxygen (O) is 16.00 g/mol. The stoichiometric coefficients for Ca, S, and O are 1, 1, and 4, respectively.

Molar mass of CaSO4 = (1 * Ca) + (1 * S) + (4 * O) = (1 * 40.08) + (1 * 32.07) + (4 * 16.00) = 136.14 g/mol.

Magnesium phosphate (Mg₃3PO₄)₂):

The atomic mass of magnesium (Mg) is 24.31 g/mol, the atomic mass of phosphorus (P) is 30.97 g/mol, and the atomic mass of oxygen (O) is 16.00 g/mol. The stoichiometric coefficients for Mg, P, and O are 3, 2, and 8, respectively.

Molar mass of Mg₃(PO₄)₂ = (3 * Mg) + (2 * P) + (8 * O) = (3 * 24.31) + (2 * 30.97) + (8 * 16.00) = 262.86 g/mol.

Therefore, the molar masses of the compounds are as follows:

Sodium hydroxide (NaOH): 39.99 g/mol

Water (H₂O): 18.

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a) attraction between ions causes the dispersion forces.

Attraction between ions is a temporary attractive force which occurs when electrons in two consecutive adjacently placed atoms occupies positional confined areas that make the atoms acting like Temporary dipoles.

Dispersion forces or London Dispersion forces is the weakest force caused due to motion of electron.

On increasing the number of electrons the magnitude to Dispersion forces increases.

Dispersion forces also depends upon the atomic or the molecular weight of the given substance.

It is caused by an unequal and uneven distribution of the electrons inside an atom.

This causes a slight positive and slight negative charge to be formed inside an atom by establishing a temporary dipole. This temporary dipole induces a nearby atom by inducing another temporary dipole in the other one.

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The two uses of dry ice include the following:

This is defined as a solid form of carbon dioxide and doesn't have a liquid state under normal atmospheric pressure. This is therefore the reason why it undergoes sublimation which involves the direct conversion of the solid phase to the gas phase.

Dry ice is used as a cooling agent in the preservation of substances via refrigeration etc and is also used in agriculture to speed up the growth of plants.

This is because plants need carbon dioxide for their photosynthetic activities and the aforementioned are therefore the appropriate uses of dry ice.

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Answer:

copper oxide + hydrochloric acid --> copper chloride + water

Explanation:

Thenks and mark me brainliest :))

Answer:

Copper oxide hydrochloric acid  ( CuCl2 + H2O)

Explanation:

CuO +  HCl  → CuCl2 + H2O

The correct increasing order of solubility for the given gases is: NH₃ < N₂ < CO₂

A chemical's solubility is the maximum amount of that substance that will dissolve in a specific amount of solvent at a specific temperature. Solubility has several practical applications, including water filtering, beverage manufacturing, and vitamin storage.

The ability of a medicine to dissolve is essential to its effectiveness. A drug substance could be absorbed without it, which results in limited bioavailability. Drugs with poor solubility can potentially cause problems with metabolism or permeability, interaction with other medications, or the requirement for prolonged drug release.

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