2.(04.01 LC)
Fill in the blank with the correct number to balance the equation: KClO3 - 2KCI + 302. (Enter only a whole number.) (3 points)

Answer:

1. employment   2. mining process  3. pollution

Explanation:

I took the assignment, it is 100% correct. : )

Answer:

B

Explanation:

increased pollution

If the partial pressure of hydrogen in the mixture is 75 torr, the total pressure of the mixture is 100 torr.

Partial pressure is the notional pressure present in every gas.

Given,

The mole fraction of helium is 0.750.

The partial pressure of hydrogen in the mixture is 75 torr

The mole fraction of hydrogen is

To find the total pressure

By Roult's law

Partial pressures divided by mole fraction

75 / 0.750 = 100 torr

Thus, the correct option is a, 100 torr.

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Answer:

Adding Neutrons

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

We know that adding Protons to any atom will change its chemical properties and make it a different element.

We also know that adding Electrons to any atom will simply only change its overall charge.

Isotopes are formed by adding neutrons to the nucleus. It will be the same element but it would have a different mass and amount of neutrons.

Answer:

D-when the aim is to show electron distributions in shells

Explanation:

Answer:

D on edge 2021

Answer:

0.758 V.

Explanation:

Hello!

In this case, case when we include the effect of concentration on an electrochemical cell, we need to consider the Nerst equation at 25 °C:

[tex]E=E\°-\frac{0.0591}{n} log(Q)[/tex]

Whereas n stands for the number of moles of transferred electrons and Q the reaction quotient relating the concentration of the oxidized species over the concentration of the reduced species. In such a way, we can write the undergoing half-reactions in the cell, considering the iron's one is reversed because it has the most positive standard potential so it tends to reduction:

[tex]Fe^{2+}+2e^-\rightarrow Fe^0\ \ \ E\°=0.440V\\\\Ni^0\rightarrow Ni^{2+}+2e^-\ \ \ E\°=-0.250V[/tex]

It means that the concentration of the oxidized species is 0.002 M (that of nickel), that of the reduced species is 0.40 M and there are two moles of transferred electrons; therefore, the generated potential turns out:

[tex]E=(0.440V+0.250V)-\frac{0.0591}{2} log(\frac{0.002M}{0.40M} )\\\\E=0.758V[/tex]

Beat regards!

Answer:

Linear molecule is a molecule in which atoms are deployed in a straight line (under 180° angle). Molecules with an linear electron pair geometries have sp hybridization at the central atom. An example of linear electron pair and molecular geometry are carbon dioxide (O=C=O) and beryllium hydride BeH2.

Explanation:

Answer:

the answer is opetuon B

The Bunsen burner is a heating apparatus used to heat samples in the laboratory. The correct answer is option B: )Leave the gas stop open for a few minutes before lighting to clear the line.

A Bunsen burner is commonly used as a heating apparatus. It contains a gas that can be controlled using a gas regulator.

It is necessary to do the following before lighting the Bunsen burner;

So, it is not necessary to Leave the gas stop open for a few minutes before lighting to clear the line before lighting a Bunsen burner.

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Answer:

The horizontal axis represents years and the vertical axis represents units of sales. The graph presents both the increase and decline in sales for both products, as sales fluctuated during the ten-year period.

Explanation:

Answer:

1.12 x 10²³atoms of F

Explanation:

Number of MgF₂ atoms = 5.6 x 10²² molecules;

 The unknown here is the number of Fluorine atoms found in the compound.

In MgF₂,

     1 mole of MgF₂ contains 2 moles of F;

From the given number of molecules we can also say that, MgF₂ contains 5.6 x 10²²atoms;

           1 mole of MgF₂ contains 2 moles of F;

    5.6 x 10²²atoms of MgF₂ will contain 2 x   5.6 x 10²² = 1.12 x 10²³atoms of F

The number of atoms of Flourine found in 5.6x10^/²² molecules of MgF2 is; 1.12 x 10²³atoms of F

Number of MgF₂ atoms as given = 5.6 x 10²² molecules;

We are required to determine the number of Fluorine atoms found in the compound.

In MgF₂,

As given, MgF₂ contains 5.6 x 10²²atoms;

Hence, 5.6 x 10²²atoms of MgF₂ will contain 2 x 5.6 x 10²² = 1.12 x 10²³atoms of Flourine.

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Answer:

is there an all of them are true option cause it should be that

Explanation:

your answer to your question is all of the above

Answer:

Here you can use the Clausis Clayperon equation: ln P1/P2=-Ea/R-(1/T1 - 1/T2)

where P1 is the pressure at standard condition: 760 mm Hg

P2 is the variable we need to solve

Ea is the activation energy, which in this case is delta H vaporisation: 56.9 kJ/mol

R is the gas constant 8.314 J/mol or 8.314 J/mol /1000 to convert to kJ

T1 is the normal boiling point 356.7 C, but converted to Kelvin: 629.85K

T2 is room temperature 25 C, but converted to Kelvin: 298.15 K

Once you plug everything in, you should get 4.29*10^-3 mmHg

Explanation:

Answer:

λ = 4.5×10⁻³⁴ m

Explanation:

Given data:

Energy of photon = 4.42×10⁸ J

Wavelength of photon = ?

Solution:

Formula:

E = hc/λ

speed of light = c = 3×10⁸ m/s

planck's constant = h = 6.63×10⁻³⁴ Js

Now we will put the values in formula.

4.42×10⁸ J = 6.63×10⁻³⁴ Js ×  3×10⁸ m/s  / λ

λ =   6.63×10⁻³⁴ Js ×  3×10⁸ m/s /  4.42×10⁸ J

λ = 19.89×10⁻²⁶ Jm /  4.42×10⁸ J

λ = 4.5×10⁻³⁴ m

Answer:

Baking a cake requires heat to be applied to the batter in order for it to cook and chemically change into cake. The energy or heat applied is absorbed by the ingredients, so this represents an endothermic reaction.

Explanation:

Answer:

Sample Response: Baking a cake requires heat to be applied to the batter in order for it to cook and chemically change into cake. The energy or heat applied is absorbed by the ingredients, so this represents an endothermic reaction.

Explanation:

on edge

Answer:

the answer is D. extraction through fracking can contaminate groundwater

The disadvantage of natural gas has been the contaminating groundwater due to fracking. Thus, option D is correct.

Natural gas has been the stored fossil energy that has been found buried deep inside the earth. The gas has consisted of a varying quantity of compounds with a maximum proportion of methane.

Natural gas has been nonrenewable, causing pollution with the burning. The release of greenhouse gases with the burning of natural gas results in affecting the environment.

Although there has been the presence of various extraction methods, natural gas results in contaminating groundwater due to fracking. Thus, option D is correct.

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Answer:

True

Explanation:

A. 3 purple and 1 white. :)

answer on EDGE2020. took/taking the exam.

Purple flowers are dominant over white flowers. The parent generation includes two heterozygous parents. The possible phenotypes of these parents’ offspring are 3 purple and 1 white. Therefore, option A is correct.

A person's genotype is their unique DNA sequence. This term is used to refer to the two alleles that a person inherited for a specific gene. A patient's clinical presentation is the detectable expression of this genotype.

We have three phenotypic classes with one locus and additive effects: AA, Aa, and aa.

Height, wing length, and hair color are all phenotypes. Phenotypes also include observable characteristics that can be measured in the lab, such as hormone levels or blood cell counts.

Purple flowers outnumber white flowers. There are two heterozygous parents in the parent generation. These parents' offspring could have three purple phenotypes and one white phenotype.

Thus, option A is correct.

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#SPJ6

Answer:

39.099 amu

Explanation:

saw this on quizlet no cap sorry im 3 weeks late

Answer:

element,compound

Explanation:

im petty sure this is the anwser

Answer: D

Explanation:

Answer:

disilicon hexabromide

Explanation:

Answer:

the moon gets infront of the sun

Answer:

A solar eclipse happens when the moon moves in front of the Sun as seen from a location on Earth. During a solar eclipse, it gets dimer and dimmer outside as more and more of the Sun is covered by the Moon. During a total eclipse, the entire Sun is covered for a few minutes and it becomes very dark outside. The temperature outside also drops.

Answer:

yes it should react yoyoyoyoyo

Answer:

See explanation

Explanation:

In SF4, the lone pair is placed at an equatorial position. One needs to consider the A-B interactions (axial-equatorial) as well as the B-B (equatorial-equatorial) interactions.

The lone pair occupies an equatorial site to minimize repulsion and maximize the space between electron pairs. Remember that equatorial bonds(Xeq-E-Xeq) are at an angle of 120 degrees while axial bonds(Xax-E-Xeq) lie at an angle of 90 degrees.

It should be noted that in the molecule SF4, the lone pair is placed at an equatorial position.

From the complete question, it's important to consider the axial-equatorial interactions as well as the equatorial-equatorial which is the B-B interactions.

Furthermore, the lone pair occupies an equatorial site that is vital in minimizing repulsion as well as maximizing the space that's between the electron pairs.

In conclusion, the lone pair is placed at an equatorial position.

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Answer:

Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than a beam of light. Electrons have much a shorter wavelength than visible light, and this allows electron microscopes to produce higher-resolution images than standard light microscopes.

Explanation:

Answer:

Common water treatment processes such as flocculation, sedimentation, filtration and disinfection are employed to remove general impurities such as floating and suspended matters, colloidal particles, dissolved organic matter and destruction of disease-causing microorganisms (pathogens).

Explanation:

Answer:

A. No, they were growing not developing.

Explanation:

Answer:

V₂ = 1750 mL

Explanation:

Given data:

Initial volume = 750 mL

Initial pressure = 840 mmHg

Final pressure = 360 mmHg

Final volume = ?

Solution:

The given problem will be solved through the Boly's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

840 mmHg × 750 mL = 360 mmHg × V₂

V₂ = 630,000 mmHg.mL/360 mmHg

V₂ = 1750 mL

Answer:

salt.

Explanation:

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