Determine the shape around each central atom in each molecule, and explain any deviation from ideal bond angles:
(b) N₂O₄ (O₂NNO₂)

When sulfur dioxide (SO2) and nitrogen oxides (NOX) are released into the atmosphere and carried by wind and air currents, acid rain is the volcanoes.

Thus, Nitric and sulfuric acids are created when the SO2 and NOX react with water, oxygen, and other substances. Then, before hitting the ground, they combine with water and other substances.

The majority of the SO2 and NOX that contribute to acid rain originates from burning fossil fuels, however a tiny amount comes from natural sources like volcanoes.  

Thus, When sulfur dioxide (SO2) and nitrogen oxides (NOX) are released into the atmosphere and carried by wind and air currents, acid rain is the volcanoes.

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Answer:

Single displacement reaction

Explanation:

You have an element (Zinc)  + a compound that consists of an element (Copper) and a polyatomic ion (Sulfate)  

Since there's one element and one compound, the metals in both trade places, giving us Zinc Sulfate and Copper as our products.

This should be the complete balanced equation:

Zn + CuSO4 -------> ZnSO4 + Cu

Answer

The formula form of Manganese (IV) perbromate is

Explanation

The formula of Manganese is Mn

The formula for perbromate is BrO₄⁻

Oxidation number of Manganese (IV) = +4, That is Manganese (IV) is Mn⁺⁴

Therefore, multiply the charge of manganese by 1 and perchlorate by 4 t

Answer:

four

Explanation:

There is four

CH 4    methane

O2      oxygen

CO2    carbon dioxide

H20    water

To make 1 liter of a 10% NaCl solution from a solid stock, you will require the following materials and containers.MaterialsSolid NaClDistilled water1-Liter volumetric flask250-mL volumetric flask 2-beakersProcedureTo prepare 1 liter of a 10% NaCl solution, the following procedure should be followed:Measure out 100g of NaCl using a balance.

Measure the weight of an empty 250-mL volumetric flask.Add the NaCl to a 250-mL beaker and add a small amount of distilled water to it to dissolve the NaCl.Carefully pour the dissolved NaCl solution into the 250-mL volumetric flask. Add distilled water to the mark on the flask to make up the volume. Stopper the flask and invert it several times to mix the solution.Measure the weight of the 1-Liter volumetric flask.Add the 250-mL volumetric flask solution to a 1-Liter volumetric flask.Add distilled water to the mark on the flask to make up the volume.

Stopper the flask and invert it several times to mix the solution.The final volume of the solution will be 1 liter of a 10% NaCl solution.PrecautionsEnsure the NaCl has completely dissolved before adding more water to avoid making a less concentrated solution.Measure the weight of the volumetric flask before and after adding the solution to calculate the volume of solution that was added.Use distilled water to prepare the solution.

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Answer:

3. Argon

Explanation:

The average atomic mass of an element with a value of 39.95 amu is Argon (Ar). The answer choice number is 3.

Answer:

191 days =16,502, 400 seconds

Answer:

2Fe + 3Cl2 --> 2 FeCl3

Explanation:

Fe + Cl2 -->  FeCl3

iron is balanced but chlorine isn't so we find what number can make each one equal

Fe +3Cl2 --> 2FeCl3

now we need to balance iron

2Fe + 3Cl2 --> 2 FeCl3

Answer:

B

Explanation:

becouse is a valintede area

Answer:i dont know thats why imon her

Explanation:

Some voltaic cells are called dry because they do not have liquids in them.

They are called dry because their electrolytes are usually in paste forms instead of aqueous form in which the electrolytes of wet cells are usually are.

The pastes in dry cells are made moist enough for the electric current to be able to flow through them.

Dry cells are advantageous because they are less heavy and one does not have to worry about the electrolyte spilling, unlike wet cells.

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Answer:

iconic compound

Explanation:

The NaCl solution will have higher boiling point.

The temperature at which the vapour pressure equals the typical air pressure at sea level is known as the normal boiling point.

A molecular compound is \(C_{2} H_{6} O_{2}\). Meaning that it will continue to be in this state after dissolving:

\(C_{2} H_{6} O_{2}\) ⇒ \(C_{6} H_{12} O_{6}\) (aq)

Ionic materials include sodium chloride (NaCl). In other words, it will produce ions when it dissolves:

NaCl(s) ⇒ \(Na^{+}\)(aq) + \(Cl^{-}\) (aq)

\(C_{2} H_{6} O_{2}\) is a molecule and NaCl is an ionic substance. The boiling points of ionic compounds are higher than those of molecular molecules. NaCl will therefore have a higher boiling point.

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For n=1, ∫Ψ* Ψ d³x = 1

The ground state wavefunction of hydrogen satisfies the normalization condition ∫Ψ* Ψ d³x = 1.

To show that the ground state hydrogen wavefunction is properly normalized, we need to calculate the integral of the wavefunction squared, Ψ², over all space and demonstrate that it equals 1.

The ground state wavefunction of hydrogen is given by:

Ψ(r) = (1/√πa₀³) \(e^(^-^r^/^a^_0)\)

where a₀ is the Bohr radius.

To show normalization, we evaluate the integral:

∫ Ψ*(r) Ψ(r) d³r

where Ψ*(r) represents the complex conjugate of Ψ(r).

Substituting the expression for Ψ(r), we have:

∫ (1/√πa₀³) \(e^(^-^r^/^a^_0)\)      (1/√πa₀³) \(e^(^-^r^/^a^_0)\) d³r

Expanding the product and rearranging the terms, we get:

(1/π²a₀⁶) ∫ \(e^(^-^2^r^/^a^_0)\) d³r

The integral represents the volume integral over all space, so we can rewrite it as:

(1/π²a₀⁶) ∫∫∫  \(e^(^-^2^r^/^a^_0)\) dxdydz

Since the wavefunction is spherically symmetric, we can use spherical coordinates for the integral. The volume element in spherical coordinates is given by r² sin(θ) dr dθ dφ.

Therefore, the integral becomes:

(1/π²a₀⁶) ∫∫∫  \(e^(^-^2^r^/^a^_0)\) r² sin(θ) dr dθ dφ

To solve the integral, we perform the integration in each coordinate:

∫∫∫  \(e^(^-^2^r^/^a^_0)\) r² sin(θ) dr dθ dφ = ∫ [0,∞]  \(e^(^-^2^r^/^a^_0)\) r² dr ∫ [0,π] sin(θ) dθ ∫ [0,2π] dφ

The φ integral gives 2π, and the θ integral gives 2.

∫ [0,∞]  \(e^(^-^2^r^/^a^_0)\) r² dr = (\(-a_0^3^/^8\)) [ \(e^(^-^2^r^/^a^_0)\) (2r² + 2r\(a_0\) + \(a_0^2\))]

Evaluating this integral from 0 to ∞ gives a_0^3/8.

Thus, the integral becomes:

(1/π²a₀⁶) (\(-a_0^3^/^8\)) (2)(2π)

Simplifying, we get:

(1/π²a₀⁶) (\(a_0^3\)/4π)

The π terms cancel out, and we are left with:

1/(2\(a_0^3\) )

This value is equal to 1, confirming that the ground state hydrogen wavefunction is properly normalized.

Therefore, the ground state wavefunction of hydrogen satisfies the normalization condition ∫Ψ* Ψ d³x = 1, demonstrating that it is properly normalized.

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Answer:

A

Explanation:

Metals has low Ionization energy and low electron affinity. (Option A)

Metals has low ionization energy because the valence electrons in alkali metals, are very away from the nucleus. Hence, they can easily lose electrons with low energy and become cationic.

Metals have a low electron affinity because they want to give up their valence electrons rather than gain electrons, which require more energy than necessary.

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Answer:

WHEA O IN AN EREM STATO. PETUA TOT low 6 EN 6ACY STATE ... Determine both the total number of protons and the total number of neutrons in an atom of the naturally occurring carbon isotope with the largest mass number.

Explanation:

ok

The densities of the substances are;

Aluminum bar = 2.6 g/ml

PE rod = 0.91 g/mL

Iron bolt =  5.65 g/mL

The term density is defined as the ratio of the mass to the volume of the object. We know that mass is an intrinsic property. This means that the density of the object can be used to identify what the object that is under study is. Let us now try to find the density of each of the objects.

In this case, we have the mass and the volumes of the objects as they have been shown in the table that have here. We can now be able to find the volume of each of the objects.

Density of aluminum bar = 39 g/ 15 g/mL = 2.6 g/ml

Density of the PE rod = 21 g/23 mL = 0.91 g/mL

Density of iron bolt = 39 g/6.9 mL = 5.65 g/mL

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37 percent is the increase in percentage.

The air bubbles locked in ice sheets as well as glaciers over Earth's previous three glacial cycles are used in the second graph to depict carbon dioxide (CO2) levels during those periods. Human activities had boosted atmospheric CO2 approximately 50% since the start of the industrial era (in the 18th and 19th centuries), bringing it to 150% of it's own value in 1750.

Actually 282 ppm means 282 gm of CO2 is in 1 million gm of air similarly 382 ppm means 387 gm is in 1 million gm of air . Increase in mass of CO2 387-282 = 105 gm .

So percentage increase= (105× 100)÷282= 37%

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Answer:

Period

Explanation:

I believe your answer should be period.

I hope it helps! Sorry if it didn’t… Have a great day!

Layla~

The molarity of the ammonia solution in this problem is 2.42 M. This titration problem requires the use of stoichiometry to determine the molarity of the ammonia solution.

The balanced chemical equation is used to determine the mole ratio between ammonia and nitric acid, which is 1:1. Knowing the volume and molarity of the nitric acid used, the moles of nitric acid can be calculated. Since the mole ratio between the two reactants is 1:1, the moles of ammonia in the 12.00 ml sample is equal to the moles of nitric acid used in the titration. Finally, the molarity of the ammonia solution is calculated by dividing the moles of ammonia by the volume of the ammonia solution used. The molarity of the ammonia solution in this problem is 2.42 M.

To find the molarity of the ammonia solution, we need to use the balanced chemical equation of the reaction between ammonia and nitric acid:

NH₃ + HNO₃ → NH₄NO₃

From the equation, we can see that the mole ratio between ammonia and nitric acid is 1:1. This means that the moles of ammonia in the 12.00 ml sample is the same as the moles of nitric acid used in the titration, which is:

moles of HNO₃ = (1.499 mol/L) x (19.48 mL/1000 mL) = 0.02899 mol

Therefore, the molarity of the ammonia solution is:

Molarity of NH₃ = moles of NH₃ / volume of NH₃ solution
Molarity of NH₃ = 0.02899 mol / 12.00 mL = 2.42 M

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Answer:

The periodic table, also known as the periodic table of chemical elements, is a tabular display of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is generally seen as an icon of chemistry.

Explanation:

The periodic table is a tabular arrangement of chemical elements that classifies elements according to repeating qualities and is structured by increasing atomic number. Metals are located on the left side of the table, whereas nonmetals are located on the right. The columns are referred to as groupings.

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