When carbon dioxide dissolves in water, it undergoes a multistep equilibrium process, with Koverall = 4.5x10⁻⁷, which is simplified to the following:(c) What is [CO₃²⁻] in rainwater (Ko of HCO₃⁻ = 4.7 × 10⁻¹¹) ?

Answer:

Like about 5-6 days in the fridge.

Explanation:

Answer:

(simple differences)Biodegradable substances are those that degrades or break down naturally...

Non-biodegradable substances are those that do not degrades easily...

Answer:

Biodegradable substances are those that degrades or break down naturally

Non-biodegradable substances are those that do not degrades easily

Measurement is the number or quantity that shows the size of the object. The measurements from longest to shortest are yards, km, inch, and nm.

Length is measured by various scales that include the distance and the range that can be stated in a unit. The unit yard is the longest and is followed by kilometers, inches, and the nanometer.

Therefore, the order is yards, km, inch, and nm.

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Answer:

The Earth is a rotating sphere that orbits the Sun. The axis of rotation of the Earth is at a constant tilt with respect to its orbit around the Sun, thus resulting in the change of seasons. Iron and oxygen make up 65% of the Earth's mass. The Earth also has gravity and magnetic force fields.

We have that in writing your essay you follow the guidelines

In writing this essay you must consider the structure of writing and essay

after a good research you must consider the structure which are

Introduction

Here you introduce yourself state the purpose of the essay and what you seek to accomplish by writing it.Speak Generally on the subject matter.

Body

Here you you talk about the various and numerous significance of understanding the characteristics of the earth,go into details,Use key points to help the user understand.Be very clear on each point using paragraphs

Conclusion

Summarize the essay ,Reference and you can offer a way to better understand the characteristics of the earth.

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Isomerase. An enzyme that catalyzes the intramolecular movement of a functional group from one carbon atom to another is known as an isomerase.

Isomerases are a type of enzyme that catalyzes the conversion of one molecule to its isomer, which is a molecule with the same molecular formula but a different arrangement of atoms.

The enzyme that catalyzes the intramolecular movement of a functional group from one carbon atom to another is known as a "mutase." Mutases are a specific class of isomerases that facilitate the transfer of functional groups within a molecule, resulting in the rearrangement of the molecule's structure.

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The average atomic mass of the element is 85.2675 atomic mass units (amu). which is the result of second isotope 90,1805.

The average atomic mass of the element can be calculated using the following formula which can help us to gain perfect answer.

Average atomic mass = (Percent abundance of isotope 1 * Atomic mass of isotope 1) + (Percent abundance of isotope 2 * Atomic mass of isotope 2)

Average atomic mass  can be = (66.00% * 81.9823) + (34.00% * 90.1805)

Percent abundance of isotope 2 = 100 - 66 = 34

Average atomic mass is= (54.65458) + (30.61290)

Average atomic mass will be = 85.2675

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CO2 play a role in earlier processes of cellular respiration.ture

Answer:

THE NEW VOLUME OF THE GAS SAMPLE IS 40 L AT 1 atm AND 400 K

Explanation:

Using general gas equation which combines Boyle's and Charles' law, the volume of the gas sample at the new pressure and temperature can be obtained.

P1V1/T1 = P2V2/T2

P1 = Initial pressure = 2 atm

V1 = Initial volume = 15 L

T1 = Initial temperature = 300 K

P2 = Final pressure = 1 atm

T2 = Final temperature = 400 K

V2 = Final volume = unknown

Substituting the values into the equation, we have;

V2 = P1V1T2 / P2 T1

V2 = 2 * 15 * 400 / 1 * 300

V2 = 12 000/ 300

V2 = 40 L

The new volume after the pressure was reduced to 1 atm and the temperature increased to 400 K is 40 L.

The molar solubility of CaF₂ should be 6.4 × 10⁻¹⁰ M in order to dissolve in 3 litres of 0.150 M NaF solution.

Calculation of the molar solubility:

Here

CaF2 will dissociate should be

CaF2 ⇌Ca²⁺+ 2F⁻

where,

1 mole of Calcium ion (x)

2 moles of fluorine ion (2x)

Now

NaF will also dissociate like

NaF ⇌ Na⁺ + F⁻

Here

Na⁺ = 0.25M

F⁻ = 0.25M

Now

Ksp = {Ca²⁺}{F⁻}²

Ksp = {x}{0.25}²

4.0 × 10⁻¹¹= 0.25⁻²× x

4.0 × 10⁻¹¹ = 0.0625x

x = 4.0 ×  10⁻¹¹ ÷ 6.25 × 10⁻²

x = 4/6.25 × 10⁻⁹

x = 0.64 × 10⁻⁹

x = 6.4 × 10⁻¹⁰

Therefore, the molar solubility of CaF₂ in NaF solution is 6.4 × 10⁻¹⁰M

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Answer:

The mass of silver chloride produced = 2.202 g

Explanation:

Equation of the reaction is given below

3AgNO₃(aq) + FeCl₃(aq) ----> 3AgCl(s) + Fe(NO₃)₃(aq)

molar mass of AgNO₃ = 170 g/mol

molar mass of FeCl₃ = 233.5 g/mol

molar mass of AgCl = 143.5 g/mol

3 moles of silver nitrate reacts with 1 mole of iron (iii) chloride to give 3 moles of silver nitrate

4.15 grams of AgNO₃ = 4.15/170 = 0.0244 moles of AgNO₃

1.11 grams of FeCl₃ = 1.11/233.5 = 0.0047 moles of FeCl₃

mole ratio of AgNO₃ to FeCl₃ = 0.0244/0.0047 = 5 : 1

therefore, FeCl₃ is the limiting reactant

0.0047 moles of FeCl₃ reacting will produce 0.0047 *  3 moles of AgCl = 0.0141 moles of AgCl

0.0141 moles of AgCl = 0.0141 * 143.5 g of AgCl = 2.02 g of AgCl =

Therefore mass of silver chloride produced = 2.202 g

Neil Bohr used the fluorescent screen and an alpha particle detector to study the structure of an atom.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

The atom as a whole is neutral and stable due to presence of oppositely charged particles.

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Answer:

C

Explanation:

because when rocks break down they can form and once they form they can make more and even bigger rocks hopes this helps.

Mass percentage of potassium bromide KBr is 40.0% and the mole fraction of potassium bromide KBr is 0.0915.

The ratio of the mass of the solute contained in a solution to the mass of the solution as a whole is known as the mass percent. When the mass of the solute and the volume of the solution are supplied, the mass/volume percent is employed to indicate the  Mole fraction concentration of the solution. Mole fraction is the ratio of the moles of one component to the total moles that represent all the components in a solution or other combination.

Brief explanation of solution :-

Molarity of KBr solution = 4.60 mol/L

Density of solution d= 1.37 g/mL

Molar mass of KBr=119.002 g/mol

a) Mass percentage of KBr ,(%):

We have formula that M = mxdx10/MW

Here, m is mass of KBr and MW is molar mass of KBr.

M is molarity of solution

Then, m= MXMW/dx10

             = 4.60×119.002 /1.37×10

             =39.95 or 40.0

mass percentage of KBr is 40.0%.

b) Mole fraction of KBr in solution:

Weight of solution, w = dxV

                                   =1.37g/mL *1000mL

                                   =1370g

So, mass of water, \(W_{H2O}\) = 1370-(4.60x119.002)

                                          =1370-547.409

                                          = 822.59g

No. of moles of water = mass of water / MW. of water

                                    = 822.59g/18.02 g/mol

                                    =45.65mol

Now, the mole fraction of KBr (solute) is

                                    квт    = No. of moles of KBr / Total no. of moles in solution

                                         = 4.60 mol (4.60+45.65)mol =0.0915  

Mole fraction of KBr= 0.0915

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Answer: A: Carbonic

Explanation: Quizlet confirmed

Answer:

At room temperature, mercury and bromine are of fluid consistency, it is because their melting or melting temperature is very low, so low that it reaches room temperature.

Compared to mercury and other metals, the more traditional metals have much higher melting temperatures.

On the other hand, bromine is not a metal, since it does not have the ability to oxidize with the presence of oxygen and also does not give up electrons.

Explanation:

Mercury in the periodic table is Hg, and bromine is Br

Answer:

D

Explanation:

there is no new substance formed

The base name for an ester with a propyl group attached to the carbonyl carbon atom is "propyl ester." In the context of a simulation, you would need to extend the left chain according to the given parameters within the simulation for the specific compound you are working with.

If we extend the left chain of an ester with a propyl group attached to the carbonyl carbon atom as far as the simulation allows, we would have the following structure:

CH3-(CH2)2-C(=O)-OR

Where R represents the rest of the ester molecule.The base name for an ester with a propyl group attached to the carbonyl carbon atom is propyl propanoate. This name is derived from the parent carboxylic acid, which is propanoic acid (also known as propionic acid), and the alcohol used to form the ester, which is propanol (also known as 1-propanol or n-propanol).The esterification reaction between propanoic acid and propanol yields propyl propanoate as the ester product, with the elimination of a molecule of water. The ester is commonly used as a flavor and fragrance ingredient in various food and cosmetic products.

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Answer;

They indicate the acidity level. That is, the less pH, the more acidic

Hope it helps :)

Answer:

\(10^{-6} \frac{mol}{L}\)

Explanation:

Comparing to the solution consisting a pH of 5 containing \(10^{-5}\)  \(\frac{mol}{L}\) of hydrogen ions, a solution having a pH of 6 consists of \(10^{-6} \frac{mol}{L}\) of hydrogen ions. A solution having a pH of 7 too will have a pH of \(10^{-7} \frac{mol}{L}\).

The electron configuration of Fe2+ is [Ar] 4s0 3d6.

The electron configuration represents the distribution of electrons in an atom or ion's energy levels and sublevels. In the case of Fe2+, it is the ion form of iron with a +2 charge, indicating that it has lost two electrons.

The electron configuration of Fe2+ can be determined by removing two electrons from the neutral atom's configuration. The neutral atom of iron (Fe) has the electron configuration [Ar] 4s2 3d6, with two electrons in the 4s orbital and six electrons in the 3d orbital.

When Fe loses two electrons to form Fe2+, the two electrons are removed from the highest energy level first. Therefore, the 4s orbital loses its two electrons, leaving it empty, while the 3d orbital retains its six electrons.

As a result, the electron configuration of Fe2+ is [Ar] 4s0 3d6, indicating that the 4s orbital is now empty, and the ion has a total of six electrons in the 3d orbital.

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Answer:

Visit: gotit-pro.com

Explanation:

Answer:

96.1 %

Explanation:

Which teacher do you have lol

Answer:

43.5

Explanation:

there are 43.5 moles of N2

This technique affect the pH in oceans that already have higher than

normal CO2 readings by increasing the ocean's acidity as the pH drops.

Adding nutrients to the upper (sunlit) layers of the ocean is a type of geoengineering (massive human operations to purposefully influence environmental systems) that aims to reduce atmospheric CO2 concentrations by promoting phytoplankton activity (photosynthesis).

Complex physical, biological, and chemical processes that vary throughout ocean regions and depths affect the ocean's carbon and nutrient cycles.

The growth, chemical communication, and reproductive processes of marine life can all be negatively impacted by even a slight variation in the pH of the seawater.

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Answer & Explanation:

For the water to H2 and O2 problem:

1) Reactant is H20, it is to the left of the arrow.

2) Products are H2 (gas) and O2 (gas) because it is to the right and what is created.

For the CO2 + water -> Glucose + Oxygen problem:

1) Reactant is CO2 and H2O, it is to the left of the arrow and what is being changed.

2) Products are C6H12O6 (glucose) and O2 (gas) because it is to the right and what is created.

These pollutants consist of dusts, mists, fumes, vapors, and gas, a chemical can enter the body most frequently through inhalation.

What is chemical exposure?

Exposure happens when someone comes into contact with a chemical, either directly or through another substance that has come into contact with the chemical. Visit the ToxFAQs website of the Agency for Toxic Substances and Disease Registry for more details on specific chemicals, such as their potential health effects.

What is hazardous?

Any substance that has the potential to endanger life or health is considered to be a chemical hazard. In the home and in many other places, chemicals are frequently used. Chemical exposure can have negative effects on your health that can be immediate or long-lasting.

These pollutants consist of dusts, mists, fumes, vapors, and gas. A chemical can enter the body most frequently through inhalation.

A respirator or mask that is appropriate for the particular contaminant is part of personal protective equipment (PPE) that offers protection against contaminants that are airborne.

Therefore, these pollutants consist of dusts, mists, fumes, vapors, and gas, a chemical can enter the body most frequently through inhalation.

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To solve this problem, we can use the dilution formula: M1V1 = M2V2

We want to mix a certain volume of a 0.950 M KCl solution with water to make 500.0 mL of a 0.250 M KCl solution. Let's call the volume of the 0.950 M KCl solution we need to mix "x". We can set up the equation as follows:

0.950 M x + 0 M (500.0 mL - x) = 0.250 M (500.0 mL)

Simplifying this equation, we get:

0.950x = 0.250(500.0 - x)

0.950x = 125.0 - 0.250x

1.200x = 125.0

x = 104.17 mL

Therefore, we need to mix 104.17 mL of the 0.950 M KCl solution with water to make 500.0 mL of a 0.250 M KCl solution.

To find the volume of water that needs to be added, we can subtract the volume of the 0.950 M KCl solution from the final volume:

Volume of water = 500.0 mL - 104.17 mL

Volume of water = 395.83 mL

Therefore, we need to add 395.83 mL of water to the 104.17 mL of the 0.950 M KCl solution to make 500.0 mL of a 0.250 M KCl solution.

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Answer:

no

Explanation:

it only shows the atomic number and basically the chemical behavior of the element

Explanation:

In CO₂ there's 2 double bonds.

Structure:

O=C=O (linear) (180°)

Therefore,

Option C is correct✔