The variable placed on the horizontal or x-axis of a graph is what variable

Answer:

the answer would be B :)

The correct answer is; Bonds create new elements

Chemical bonds are formed when two or more atoms are joined together to form a compound.

Chemical compounds are more stable than the respective elements from which they are formed.

Chemical bonds do not create new elements.

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Answer:

no

Explanation:

Answer:

Pure substance consisting of one type of atom

Compound: Pure substance consisting of two or more different atoms

Explanation:

The energy change for the reaction Fe₂O₃ (s) + CO (g) → 2FeO (s) + CO₂ (g) is 1.6 kJ.

To find the energy change for the reaction Fe₂O₃ (s) + CO (g) → 2FeO (s) + CO₂ (g), according to the given information:

Fe₂O₃ (s) + 3CO (g) → 2Fe (s) + 3CO₂ (g) (ΔH = -23.4 kJ)

FeO (s) + CO (g) → Fe (s) + CO₂ (g) (ΔH = -10.9 kJ)

We need to influence these two reactions to get the desired reaction:

Step 1: Multiply reaction second by 2 to get 2FeO (s) + 2CO (g) → 2Fe (s) + 2CO₂ (g) (ΔH = -21.8 kJ)

Step 2: Reverse reaction first to obtain -2Fe (s) - 3CO₂ (g) → Fe₂O₃ (s) + 3CO (g) (ΔH = 23.4 kJ)

Step 3: Add the changed reactions together:

2FeO (s) + 2CO (g) → 2Fe (s) + 2CO₂ (g) (ΔH = -21.8 kJ)

-2Fe (s) - 3CO₂ (g) → Fe₂O₃ (s) + 3CO (g) (ΔH = 23.4 kJ)

FeO (s) - CO₂ (g) → Fe₂O₃ (s) + CO (g) (ΔH = 1.6 kJ)

The energy change for the desired reaction Fe₂O₃ (s) + CO (g) → 2Fe₀ (s) + CO₂ (g) is 1.6 kJ.

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Answer:

E- Electrical

Explanation:

It converts mechanical energy to electrical energy

Answer:

A

B

A

Explanation:

all emit light except form green grass and blue carpet

Answer:

Green house gas emissions but do generate heat to produce steamsince power plans don't burn fuel, they don't produce greenhouse

Explanation:

Nuclear power plants produce no greenhouse gas emissions but they do generate electricity.

Nuclear power plants are a type of power generation facility that harnesses the energy from nuclear reactions to produce electricity.

Unlike fossil fuel power plants, which burn coal, oil, or natural gas and release greenhouse gases into the atmosphere, nuclear power plants do not emit any greenhouse gases during their operation.

This is because nuclear power plants rely on nuclear fission, a process where the nucleus of an atom is split, to generate heat.

The heat is then used to produce steam, which drives turbines connected to generators, ultimately generating electricity.

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Answer:

i dont know sorry

Explanation:

Answer:

(1) Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go. (2) Filters out waste from food and pushes it through intestines and out the body (and you know how and where it gets out).

Answer:

The answer is

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\ \)

From the question

mass of iron = 15.64 g

density = 2.27 g/cm³

The volume is

\(volume = \frac{15.64}{2.27} \\ = 6.889867841...\)

We have the final answer as

Hope this helps you

Answer:

Explanation:

Go to a craft store and buy so me material that are biodegradable

The molecule with the strongest bond is I2. This is because the bond strength increases down the group in halogens.

As we move down the group, the size of the halogen atoms increases, leading to a greater distance between the two atoms in the diatomic molecule. However, the number of electron shells also increases, which increases the number of electrons in the bond, making it stronger.

The increase in size is not the only factor that affects the strength of the bond. As the size of the atoms increases, the number of electrons in the bond also increases. This is because each atom in the bond contributes one electron to the shared pair of electrons, and as the size of the atoms increases, the number of electrons also increases.

Therefore, I2 has the strongest bond among the given options as it has the largest size and the most number of electrons in the bond.

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Answer:

1.43 grams

Explanation:

Fe = 55.8 grams Fe = 1 mole Fe

2.56 • 10^-3 moles Fe / 1 • 55.8 grams Fe / 1 mole Fe = 1.43 grams Fe

Basically, you're just multiplying the molar mass of Fe (iron) by the moles of 2.56 • 10^-3 Fe, to find how many grams are in it.

2.56 • 10^-3 moles Fe = 1.43 grams Fe

Answer: 13.02083 lbs

Explanation:

Fire is a risk in all commercial kitchens. Open flames, grease, poor house-keeping practices, electrical hazards and flammable materials are common causes of restaurant fires.

What is an accidental fire?

Accidental fires are those in which the proven cause does not involve any deliberate human act to ignite or spread the fire.

Open flames, grease, poor house-keeping practices, electrical hazards and flammable materials are common causes of restaurant fires. Employers must implement effective administrative controls to protect employees and the business from the dangers of fire.

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Answer:

x = 25.02 or 25°c

Explanation:

Given:

mass of water : 7.50×10² =750 gm

Ccal = 8.20× 10² = 820 J/°c

Let assume final temp = x°c

then, heat gained by the water + heat gained by calorimeter

= 25400 J

⇒ Mw × Cw× ΔTw+ Ccal ×ΔT = 25400

⇒ 750× 4.184 × (x - 18.6) + 820 ×(x-18.6) = 25400

⇒ x = 25.02 or 25°c

The empirical formula for the substance, given the data from the question is H₂O

From the question given above, the following data were obtained:

We can determine the empirical formula for the substance as shown below:

Divide by their molar mass

H = 11.190 / 1 = 11.190

O = 88.810 / 16 = 5.551

Divide by the smallest

H = 11.190 / 5.551 = 2

O = 5.551 / 5.551 = 1

Thus, the empirical formula for the substance that is most abundant in the human body is H₂O

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The cell notation is \(Pb_{(s)}\)  \(Pb^{2+} _{(aq)}\) ║\(Cu^{+2}_{aq}\)  \(Cu_{(s)}\) and the cell potential is 0.464

The reaction occurred while losing of hydron is known as oxidation reaction

We can also tell that the reaction occurred while gaining of oxygen atom is known as oxidation reaction.

The reaction occurred while gaining of hydrogen is known as reduction reaction or we can say that the reaction occurred while losing oxygen atom is known as reduction reaction

An electrochemical cell's cell potential is defined as the difference in potential between two half cells. The electrons' capacity to go from one half cell to the other is what causes the potential difference. As a result of the chemical reaction being a redox reaction, electrons can travel across electrodes.

Calculating the Cell potential

E°cell  = E°(reduction) - E°(oxidation)

           = 0.34 - (-0.0124)

           = 0.464

Hence the cell potential is 0.464

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Answer:

1. Equivalence point

2. Direct titration

3. Primary standard

4. Titrand

5. Back titration

6. Standard solution

7. Titrant

8. Indirect titration

9. End point

10. Indicator

Explanation:

1. The equivalence point is the tiration point at which the quantity or moles  of the added titrant is sufficient or equal to the quantity or moles of the analyte for the neutralization of the solution of the analyte.

2. Direct titration is a method of quantitatively determining the contents of a substance

3. A primary standard is an easily weigh-able representative of the mount of moles contained in a substance

4. A titrand is the substance of unknown concentration which is to be determined

5. The titration method that uses a given amount of an excess reagent to determine the concentration of an analyte is known as back titration

6. A standard solution is a solution of accurately known concentration

7. A titrant is a solution that has a known concentration and which is titrated unto another solution to determine the concentration of the second solution

8. Indirect titration is the process of performing a titration in athe reverse order

9. The end point is the point at which the indicator indicates that the equivalent quantities of the reagents required for a complete reaction has been added

10 An indicator is a compound used to visually determine the pH of a solution.

The titration has been the neutralization reaction in which the titrand and the titrant react to form the salt and the water and help in the determination of the qualitative and quantitative properties.

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ClO\(_2\), H\(_2\)O are the polar covalent compounds, since all of these chemicals have a dipole moment.

Polar covalent compounds are electrical conductors. Polar compounds comprise chemical compounds held together through polar covalent bonds.

A polar compound is a chemical species that has two or even more atoms that are linked together by polar covalent bonds that share electrons irregularly. ClO\(_2\), H\(_2\)O are the polar covalent compounds, since all of these chemicals have a dipole moment.

Therefore,  ClO\(_2\), H\(_2\)O are the polar covalent compounds.

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To determine the molarity of the dichromate in the volumetric flask before it reacts with the Fe(II) in the sample, please follow these steps.

1. Identify the initial concentration and volume of the dichromate solution. This information is usually given in the problem or can be found through a series of calculations.

2. Calculate the moles of dichromate ions using the initial concentration and volume. To do this, use the formula: moles = concentration x volume.

3. Find the volume of the volumetric flask. This information is typically given in the problem or can be measured.

4. Determine the molarity of the dichromate in the volumetric flask. To do this, use the formula: molarity = moles / volume of the flask.

By following these steps, you can determine the molarity of the dichromate in the volumetric flask before it reacts with the Fe(II) in the sample.

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Oxygen, heat and fuel are the elements you need to remove to extinguish the fire, removing the excess heat by water.

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Answer : The correct option is (b) \(1.01\times 10^{24}\)

Explanation : Given,

Mass of cesium = 223 g

Molar mass of cesium = 133 g/mole

First we have to calculate the moles of cesium.

\(\text{Moles of cesium}=\frac{\text{Given mass cesium}}{\text{Molar mass cesium}}\)

Now putting all the given values in this formula, we get:

\(\text{Moles of cesium}=\frac{223g}{133g/mol}=1.67mol\)

Now we have to calculate the number of atoms of cesium.

As, 1 mole of cesium contains \(6.022\times 10^{23}\) atoms of cesium

So, 1.67 mole of cesium contains \(1.67\times 6.022\times 10^{23}=1.01\times 10^{24}\) atoms of cesium

Therefore, the number of atoms of cesium are \(1.01\times 10^{24}\)

Neither the reduction and phosphorylation of glyceraldehyde 3-phosphate to produce 1,3-bisphosphoglycerate nor the oxidation of a molecule of NAD+ to NADH.

What is G3P and how does it work?

The energy-producing processes glycolysis and glycerolipid biosynthesis both require glycerol-3-phosphate (G3P), which is a necessary component.

                               Enzymes involved in G3P biosynthesis and catabolism, as well as those involved directly or indirectly in G3P biosynthesis, control the amount of G3P in plants.

What is the purpose of glyceraldehyde 3-phosphate?

The end result of the Calvin cycle is glyceraldehyde 3-phosphate, or G3P. A 3-carbon sugar, it serves as the building block for the creation of other carbs.

                                The cycle is continued in part by using this G3P to regenerate the RuBP, but some of it is also available for molecular synthesis and is utilized to create fructose diphosphate.

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Answer:

Diatomic molecules consist of two atoms that are chemically bonded. The two atoms can be the same or different chemical elements. As for whether or not they are compounds, there is not technically an answer. This is because all compounds are molecules, but not all molecules are compounds. For example diatomic molecules that comprise the chemical compounds nitric acid, carbon monoxide, and hydrogen chloride are made up of two different elements.  As you can see, most diatomic molecules are not made up of the same kind of elements and not every diatomic molecule comprises a chemical compound.

hope this helps :)

Explanation:

The best starting material to use to produce the tertiary alcohol shown without producing additional alcohols is Isobutene.

The production of the tertiary alcohol shown without producing additional alcohols is possible with the help of isobutene. Isobutene is also known as 2-methylpropene, is an unsaturated organic compound which is obtained by cracking or isomerization of petroleum oil.  When isobutene is reacted with methanol in the presence of sulfuric acid, it forms tertiary butyl methyl ether (TBME). The reaction takes place according to the following equation:

CH₃OH + (CH₃)₃CCH=CH₂ → (CH₃)₃COCH₃

In this reaction, isobutene is used as a starting material to produce tertiary butyl methyl ether without producing additional alcohols. The reaction mechanism is as follows:

Step 1: Formation of carbocation (CH₃)₃CCH=CH₂ + H₂SO₄ → (CH₃)₃C⁺ + HSO₄⁻

Step 2: Formation of intermediate (CH₃)₃C⁺ + CH₃OH → (CH₃)₃COCH₃

Step 3: Regeneration of the catalyst HSO₄⁻ + CH₃OH → H₂O + CH₃OSO₃H

In this way, isobutene is the best starting material to use to produce the tertiary alcohol shown without producing additional alcohols.

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Chemist prefer to use kipp’s apparatus for the production of hydrogen sulphide instead of woulf’s bottle because they produce gas without generating heat.

Kipp's appratus and woulf's bottle both are the laborartory appratus and used in the analytical process of any reactions.

Hydrogen sulphide gas will be produced in the laborartory by using both given appratus but we prefer the use of kipp's apparatus because in this apparatus small amount of gas is produced in the controlled heat condition by the reaction between the liquid sulphuric acid and solid iron sulphide.

Hence we prefer kipp's appratus as it produces gas without heat.

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Answer:

A picture .There is high reactions in progression still the energy reaction reduced to indicate complete reaction.

Answer:

pic 3

Explanation:

(A) ON EDG2021

Answer:

an oxygen atom with 8 electrons, 8 protons, and 9 neutrons

Explanation:

A proton has a positive charge and an electron has a negative charge. Magnitude of both of these charges is same. So, we need the same number of electrons and protons to make the atom neutral.

Neutron is neutral, so we can safely ignore it in this question.

Answer:

an oxygen atom with 8 electrons, 8 protons, and 9 neutrons

Explanation: