reaction of bicarbonate and hydroxide ​

Answer:

A neutral solution hope it helps

Answer:

27.3 g HCl

Explanation:

**Be sure to arrange the conversion in a way that allows for the cancellation of units.

(Step 1)

Convert milliliters (mL) to liters (L).

1,000 mL = 1 L

 250 mL                1 L
---------------  x  -----------------  =  0.25 L
                         1,000 mL

(Step 2)

Use the molarity ratio to find the moles of HCl.

Molarity = moles / L

3 M = moles / 0.25 L

0.75 = moles

(Step 3)

Convert moles to grams using the molar mass of HCl.

Molar Mass (HCl): 1.008 g/mol + 35.453 g/mol

Molar Mass (HCl): 36.461 g/mol

0.75 moles HCl             36.461 g
--------------------------  x  --------------------  =  27.3 g HCl
                                         1 mole

Answer:

B2Br6

Explanation:

DNA describes as a blueprint for a cell because it contain the instruction needed for an organism to grow develop and survive

DNA is called a blueprint of life because it contain the instruction needed for an organism to grow develop and survive and reproduce and DNA does this by controlling protein synthesis and protein do must of the work cell and are basic unit of structure and function in the cell of organism

DNA is read by the enzyme RNA polymerase and this enzyme attaches itself to the DNA strand slightly in front of a gene and it then slides along the DNA strand making a copy of the gene only using RNA building blocks instead of DNA building block

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Martha should use 0.294 liters (or approximately 294 milliliters) of the 1.25 M H2SO4 solution for her chemical reaction.

We can use the following equation to calculate the amount of H2SO4 needed from a solution with a known concentration and volume:

moles of solute = concentration × volume

Where

First, we need to calculate the number of moles of H2SO4 in 36 grams:

molar mass of H2SO4 = 2(1.008) + 32.06 + 4(16.00) = 98.08 g/mol

moles of H2SO4 = mass / molar mass = 36 g / 98.08 g/mol = 0.3675 mol

Next, we can rearrange the equation to solve for volume:

volume = moles of solute / concentration

volume = 0.3675 mol / 1.25 mol/L = 0.294 L

Therefore, Martha should use 0.294 liters (or approximately 294 milliliters) of the 1.25 M H2SO4 solution for her chemical reaction.

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Answer:

N≡N

Explanation:

The image attached shows the nitrogen compounds that are being referred to in the question.

There are certain things we ought to know in order to answer the question accurately.

The bond order of a compound is equal to the number of bonds between two atoms. The greater the bond order, the shorter the bond length between the two atoms.

N≡N has a bond order of three, this is the highest bond order among all the species listed in the question. Hence it has the shortest bond length among the trio. Hence the answer.

Answer: the temperature would increase

Explanation:

because if one spot on the earth got the same amount of light through the summer and winter it would have a severe amount of drought and nothing to cool it down since all off it evaperated

Answer: KE = 8.6917248 J

I'm not for sure but I am pretty positive this is the answer

The interaction of sodium hydroxide (NaOH), hydronium ion (H₃O⁺), and 2-nitropentane. It appears to involve both acid-base reactions and nucleophilic substitution. Here is a theory for the reaction's mechanism:

Step 1: Deprotonation

Strong base NaOH sodium hydroxideinteracts with hydrogen ion H₃O⁺ to produce water (H₂O) and sodium hydronium ion (NaH₃O⁺):

H₃O⁺ + NaOH → H₂O + NaH₃O⁺

Step 2: Nucleophilic Attack

The carbon-nitrogen double bond in NaH₃O⁺ is attacked by the deprotonated nitropentane anion, which is produced from 2-nitropentane, acting as a nucleophile:

NaH₃O⁺ + Nitropentane → Na+ + Nitropentane Anion

Step 3: Protonation

The end product, 2-nitropentanol, is created when water (H₂O), acting as a proton donor, donates a proton to the nitropentane anion:

Nitropentane Anion + H₂O → 2-Nitropentanol

The complete reaction can be summarized as follows:

2-nitropentane + NaOH/H₃O⁺ → 2-nitropentanol + Na⁺ + H₂O

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The Voltage is the pressure from the electrical circuit of the power source that passes the current.

The Voltage is defined as the pressure from the electrical circuit of the power source that will passes the charged electrons that is the current through the conducting loop, it will enable them to do work  because of the illuminating the light. The in simple terms is : voltage = pressure, and it is denoted as the volts and the symbol is the V.

The voltage is described as the force that causes the flow of the charged particles. The Voltage is also called as the electromotive force.

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Answer:

1. The combined number of protons and neutrons remains constant.

2. There are two atoms with mass numbers of 2.

3. It is the number of protons plus neutrons.

4. A nucleus with a greater mass than any of the reactants will be produced.

5. Fusion reactions in the sun convert small amounts of matter into large amounts of energy.

Explanation: I couldn't see the comments so I guess some ppl can't either but here you go got them all correct! :)

Th sun produces energy through fusion reaction by converting small amount of matter into larger amounts of energy.

The sun is able to produce energy because protons of hydrogen atoms present in the sun collide violently in the sun's core and fuse together leading to the formation helium atom.

This process of fussion is referred to as a PP (proton-proton) chain reaction, and it emits an enormous amount of energy

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Answer:

\(\boxed {\boxed {\sf 1.6 \times 10^{24} \ atoms \ Si}}\)

Explanation:

We are asked to find how many atoms are in a sample of 75 grams of silicon.

First, we must convert grams to moles using the molar mass. This is the mass of 1 mole of a substance. The molar mass is found on the Periodic Table because it is equal to the atomic mass, but the units are grams per mole instead of atomic mass units.

Look up the molar mass of silicon.

We convert using dimensional analysis, so we must set up a conversion factor.

\(\frac {28.085 \ g \ Si}{1 \ mol \ Si}\)

We are converting 75 grams of silicon to moles, so we multiply by this value.

\(75 \ g \ Si*\frac {28.085 \ g \ Si}{1 \ mol \ Si}\)

Flip the conversion factor so the units of grams of silicon cancel.

\(75 \ g \ Si*\frac {1 \ mol \ Si}{28.085 \ g \ Si}\)

\(75 *\frac {1 \ mol \ Si}{28.085 }\)

\(\frac {75}{28.085} \ mol \ Si\)

\(2.670464661 \ mol \ Si\)

Next, we convert moles to atoms using Avogadro's Number, or 6.022 ×10²³. This is the number of particles (atoms, molecules, formula units, etc.) in 1 mole of a substance. In this problem, the particles are atoms of silicon.

Set up another conversion factor, this time with Avogadro's Number.

\(\frac {6.022 \times 10^{23} \ atoms \ Si}{1 \ mol \ Si}\)

Multiply by the number of moles we found.

\(2.670464661 \ mol \ Si*\frac {6.022 \times 10^{23} \ atoms \ Si}{1 \ mol \ Si}\)

The units of moles of silicon cancel.

\(2.670464661 *\frac {6.022 \times 10^{23} \ atoms \ Si}{1 }\)

\(2.670464661 * {6.022 \times 10^{23} \ atoms \ Si}\)

\(1.60815382 \times 10^{24} \ atoms \ Si\)

The original value of grams (75) has 2 significant figures, so our answer must have the same. For the number we found, that is the tenths place. The 0 in the hundredths place tells us to leave the 6 in the tenths place.

\(1.6 \times 10^{24} \ atoms \ Si\)

To draw a Bohr Rutherford diagram for carbon-12, we would have the symbol C in the center, with 2 electrons in the first energy level and 4 electrons in the second energy level, arranged in pairs. Each energy level would be represented by a circle around the nucleus, with the appropriate number of electrons placed in the circles.

A Bohr Rutherford diagram is a visual representation of the electron arrangement in an atom. Carbon-12 has 6 protons and 6 neutrons, which means it has 6 electrons as well since it is a neutral atom. In a Bohr Rutherford diagram, the nucleus is represented by the symbol for the element and the protons and neutrons are shown as small circles inside the symbol. The electrons are represented as dots or circles around the symbol, in the order of increasing energy levels.

In the case of carbon-12, the first energy level can hold a maximum of 2 electrons, and the second energy level can hold a maximum of 8 electrons. Therefore, the first energy level will have 2 electrons, and the remaining 4 electrons will go in the second energy level.

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The balanced complete neutralization reaction between each pair of reactants are-

CH₃COOH + NaOH → CH₃COONa + H₂O

CaCO₃ + HCl → CaCl₂ + H₂CO₃

What is balancing of a reaction?

Balancing of a reaction is based on Law of conservation of mass where we have to balance masses of the reactants and products in LHS and RHS of a chemical reaction.

For e.g -

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Therefore, the balanced complete neutralization reaction between each pair of reactants are-

CH₃COOH + NaOH → CH₃COONa + H₂O

CaCO₃ + HCl → CaCl₂ + H₂CO₃

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Answer:

A pyramid of energy represents how much energy, initially from the sun, is retained or stored in the form of new biomass at each trophic level in an ecosystem. Typically, about 10% of the energy is transferred from one trophic level to the next, thus preventing a large number of trophic levels.

Answer:

The correct answer is 5.

CoS

Explanation:

Cobalt sulphide

is produced when the aqueous solutions of CoCl2 and Na2S are combined:

CoS(s) + 2NaCl = CoCl2(aq) + Na2S(aq) (aq)

In order to create cobalt sulphide, which is insoluble in water and precipitates out as a solid, the Co2+ ions in CoCl2 and the S2- ions in Na2S must interact. NaCl, one of the reaction's other byproducts, is soluble in water and stays in solution.

Hope it helps! : )

According to ideal gas equation if the temperature and pressure remained constant, then the volume of the gas in balloon is fixed.

The equation of state for a fictitious perfect gas is known as the ideal gas law, sometimes known as the generic gas equation. Although it has some restrictions, it is a good approximation of the behavior of numerous gases under various circumstances. The sole interaction between molecules of an ideal gas would be an elastic collision when they collided or an elastic collision with the container walls.

The volume of a specific quantity of a gas is inversely proportional to its pressure at constant temperature. The following is a concise description of what is now known as Boyle's law: When held at a fixed temperature, the volume of a given quantity of gas is inversely proportional to the pressure at which it is measured.

Thus, according to ideal gas equation if the temperature and pressure remained constant, then the volume of the gas in balloon is fixed.

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Answer:

Hello your question is poorly written hence i will give you a more general answer

answer :  The reason why it is desirable to use an excess of barium ion in the precipitation is to form the compound needed,

Explanation:

Natural Precipitation occurs when condensed atmospheric water vapor falls due to the gravitational pull exerted on it by the clouds. precipitation can be in various forms like ; rain , ice pellets and snow . e.t.c

Hence the reason why it is desirable to use an excess of barium ion in the precipitation is to form the compound needed,

Also in order to form the precipitation, we will also add excess of barium ion which will help form the required precipitate and also  filter out the mass of Sulphate.

Answer:

a metal

Explanation:

metals are good conductors of electricity

Silver shows electrical and thermal conductivity and shows luster. These properties are feature of a metal and thus silver is most likely a metal.

Silver is 69th element in the periodic table and is included in  the transition metals. It is a d-block element with the symbol Ag came from the Latin name argentum.

Silver is a common component  in electronic devices since it is the most conducting metal . Thermal conductivity and shining property are other features of silver. Due to its shining silver is used to make ornaments.

The highly conducting and shining materials are termed as metals therefore, silver is a metal.

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Mangrove trees' robust roots aid in stabilizing the soil and preventing soil erosion. This is especially crucial in swampy coastal locations, where the soil is frequently loose and prone to wind and wave erosion. Mangrove trees work to stabilize the coastline and stop land erosion by securing the soil in place.

Mangrove trees also aid in removing contaminants from the water, enhancing the quality of the water in coastal areas while serving as an essential home for a variety of wildlife species. Mangrove trees contribute significantly to environmental protection and are an essential component of coastal ecosystems.

Mangrove trees are crucial for environmental preservation because they hold the soil in place and stop erosion in marshy coastal areas. They also provide crucial habitats for numerous wildlife species, stabilize the coastline, and stop the land from being lost to erosion while enhancing water quality by filtering pollutants from the ocean.

Mangrove trees are an essential part of coastal ecosystems overall, and preserving them is essential for preserving a healthy and sustainable environment.

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Answer:

\(M=0.763\frac{mol}{L}=0.763M\)

Explanation:

Hello,

In this case, as the osmotic pressure (π) is widely known as a colligative property, we can see that the solution in this case is formed by water and tree sap, that is mathematically defined by:

\(\pi =iMRT\)

Thus, since tree sap is a covalent substance that is nonionizing, we can infer its van't Hoff factor to be 1, therefore, for the given osmotic pressure and temperature, we can compute the molar concentration (in molar units mol/L) as follows:

\(M=\frac{\pi }{RT} =\frac{19.1atm}{0.082\frac{atm*L}{mol*K}*(32+273.15)K} \\\\M=0.763\frac{mol}{L}=0.763M\)

Best regards.

The best description of cis-trans isomers is that they differ in their spatial arrangement around inflexible double bonds. Option E is correct.

Specifically, cis-trans isomers are a type of stereoisomers that have the same molecular formula and the same covalent bonds but differ in the spatial arrangement of their atoms due to the inflexibility of a double bond. In cis isomers, the two substituents on each carbon atom are on the same side of the double bond, while in trans isomers, the two substituents on each carbon atom are on opposite sides of the double bond.

This results in different physical and chemical properties for the two isomers. For example, cis and trans isomers of some compounds may have different boiling points, melting points, and reactivities.  Cis-trans isomerism is an important concept in organic chemistry as it affects the properties and behavior of molecules and can have significant implications for their biological activity, environmental fate, and industrial applications. Option E is correct.

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Answer:

............

Explanation:

Explanation:

God loves you you are a good person

The limiting and excess reactant can be obtained as follow:

2Mg + O₂ -> 2MgO

From the balanced equation above,

48 g of Mg reacted with 32 g of O₂

Therefore,

62.1 g of Mg will react with = (62.1 × 32) / 48 = 41.4 g of O₂

We can see from the above that only 41.4 g of O₂ is required to react completely with 62.1 g of Mg.

Thus, the limiting reactant is magnesium, Mg and the excess reactant is oxygen, O₂

The mass of the excess reactant remaining can be obtained as shown below:

Mass of excess reactant remaining = Mass given - mass reacted

Mass of excess reactant remaining = 100 - 41.4

Mass of excess reactant remaining = 58.6 g

The mass of H₂SO₄ produced can be obtained as illustrated below:

Mg + O₂ -> 2MgO

From the balanced equation above,

48 g of Mg reacted to produce 80 g of MgO

Therefore,

62.1 g of Mg will react to produce = (62.1 × 80) / 48 = 103.5 g of MgO

Thus, the mass of product, MgO produced is 103.5 g

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Complete question:

If 62.1 grams of magnesium react with 100.0 grams of oxygen, how many grams of product are produced?

Which is the Limiting reactant?

Which is the Excess reactant?

How many grams of excess reactant remain?

Answer: max Ag2S 159 g

Explanation:

at wts Ag 107.87, I 126.9, Na 22.99, S 32.065

AgI 234.76, Na2S 87.12, Ag2S 172.0, NaI 149.6

2(mol)AgI + 1(mol)Na2S —> 1(mol)Ag2S + 2(mol)NaI

200g AgI = 200/107.87 mol = 1.85 mol

200g Na2S = 200/87.12 mol = 2.3 mol, so AgI is limiting.

2 mol AgI —> 1 mol Ag2S, so

1.85 mol AgI —> 1.85/2 mol Ag2S

1 mol Ag2S = 172 g

max Ag2S = 172*1.85/2 g = 159g

Answer:

6

Explanation:

As , 2H2 + O2 = 2H2O

with 6 H2, 4O2 is excess.

H2O molecules formed = 6

Answer:

d. positron

that's the answer brainly tells me I need to write at least 20 characters and that's d u m b.

The pOH and the pH are related by the following equation:

Thus, we can solve for pH and substitute the pOH = 5 to find the pH:

So, the pH is 9.

We can classify the solution by using the folowing:

Since the pH is 9, it is greater than 7, so the solution is a base.