Why would you argue this is the best energy source to use?

Answers

Answer 1
what is the energy source i don’t understand this question?
Answer 2

Answer:

really its tought or we can say confusing

°__°


Related Questions

650.0 mL of a gas is under a pressure of 840.0 torr. What would the volume of
the gas be at a pressure of 1150.0 torr?

Answers

Answer:

Explanation:using the ideal gas formula, calculate the volume of 1.5omoles of a gas at 115kPA and a temperature of 298k?

For the molecule allene, h2 c = c = ch2, give the hybridization of each carbon atom. Will the hydrogen atoms be in the same plane or perpendicular planes?

Answers

Owing to the fact that allene is not a planar molecule, the hydrogen atoms in the molecule do not lie on the same plane.

What is a plannar molecule?

A planar molecule refers to those molecules that lie on same plane. This means that the atoms in the molecules are all arranged along the same plane.

Now we know that the molecule allene is not a planar molecule. Owing to the fact that allene is not a planar molecule, the hydrogen atoms in the molecule do not lie on the same plane. All the carbon atoms present are sp2 hybridized.

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What is the substance that is dissolved in a solution?
A)solvent
B)solute
C) mixture
D) electrolyte

Answers

Answer:

solute dissolves in a solution

Answer:

solvent

Explanation:

because solvent are liquid that disolves

A chemist creates a reaction between nitrogen and oxygen to form nitrogen monoxide. This reaction is shown by the equation N2(g) + O2(g) ⟶ 2NO(g). The time interval of this reaction is t1 = 12 seconds to t2 = 22 seconds. During this reaction, the O2 concentration changes from 0.237 mol/L to 0.207 mol/L.

What is the average reaction rate for O2 in this reaction?

Answers

Answer: here's the answer to your question

1.3 ×10¹ is the average reaction rate for O[tex]_2[/tex] in this reaction N2(g) + O2(g) ⟶ 2NO(g).

What is rate of reaction?

The pace during which a chemical response takes place is known as the reaction rate and rate of reaction. It is proportional to the rise in product concentration per unit time and the fall in reactant concentration per unit time. Response times can differ wildly.

For instance, cellulose burns in a fire in a matter of seconds as opposed to the sluggish, years-long oxidative corrosion of iron that occurs under Earth's atmosphere. For the majority of reactions, the rate gets slower as it goes along. By tracking the concentration changes over time, one can calculate the pace of a reaction.

concentration of N[tex]_2[/tex] =0.34/0.75=0.45M

concentration of O[tex]_2[/tex] =0.34/0.75=0.45M

concentration of NO=1.2/0.75=1.6

Kc = [NO]²/ [ N[tex]_2[/tex] ] × [ O[tex]_2[/tex] ]

    =  [0.45]²/ [ 0.45 ] × [ 1.6 ]

    = 1.3 ×10¹

Therefore, 1.3 ×10¹ is the reaction rate.

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Firefighters’ uniform is coated with a plastic that is fire resistant. Identify the plastic from the given options.

A. Teflon

B. Melamine

C. PET

D. Polyester

Answers

Answer:

Melamine

Explanation:

Melamine is also a non recyclable plasticThis plastic has very high heat resistance and also bad heat and electricity conducter.So it's used by firefighters

Calculate the [H+] in a 1.0 M solution of HA

Answers

[H+] is the concentration of an acid. Since HA is an acidic solution, your answer would be 1.0 M.

If you were calculating for the [OH-] concentration, you would have to complete several conversions to find it. But since they ask for the [H+] concentration, your answer would be equal to the molarity of the solution.

Help me please im stuck

Answers

Answer:

1. mechanical energy

2. Kinetic energy

3. Energy

4. Work

5. potential energy

Explanation:

1. The total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy 
2. All moving objects have kinetic energy. When an object is in motion, it changes its position by moving in a direction: up, down, forward, or backward.

3. Energy is defined as the ability to cause changes in matter. You can change energy from one form to another when you lift your arm or take a step. In each case, energy is used to move matter — you. The energy of moving matter is called kinetic energy.

4. transfer of energy that occurs when a force makes an object move. For work to occur, an object must move. The motion of the object must be in the same direction as the applied force on the object.

5. potential energy is the energy that is stored in an object due to its position relative to some zero position. An object possesses gravitational potential energy if it is positioned at a height above (or below) the zero height.

What are two ways continents can grow?

Answers

Answer:

What are three ways continents get bigger?

age of rocks.

fossils.

evidence of melting (subduction)

location on current continents.

glacial deposits.

What’s an example of a single displacement reaction in everyday life

Answers

Answer:

Any time a simple metal reacts with an acid it is a single displacement reaction.

Explanation:

A single displacement reaction is a reaction when a compound reacts with an element (eg. A + BC → AC + B). For the reaction to occur, the element replacing that in the compound must be more reactive. A metal can replace a metal and a non metal can replace a non metal, but a non metal can not replace a metal and vice versa. When metals are reacting, we use the activity series and when non metals are switching, the periodic table is used to determine if the reaction will happen.
A simple everyday example is acid indigestion. We can relieve the distress when the stomach produces too much
HCl by drinking a solution of sodium hydrogen carbonate. The H in the HCI
displaces the Na in NaHCO/3 to produce
H/2CO/3.

Determine the number of moles of air present in 1.35 l at 750 torr and 17.0°c. ideal gas law formula: pv = nrt(r = 62.396 l•torr/mol•k) which equation should you use? p equals startfraction n r t over v endfraction. n equals startfraction r t over p v endfraction. n equals startfraction p v over r t endfraction.

Answers

The number of moles of air present is 0.056 mole

What is the ideal gas equation?

The ideal gas is one in which molecules do not attract or repel each other.Many gases like oxygen,nitrogen, carbon di oxide can be treated as the ideal gases as particular temperature and pressure.The real gases at high temperature and lower pressure can be treated as ideal gases.

The given data in the question is

Volume = 1.35 L

Pressure (P) = 750 torr

Temperature (T) = 17 °C = 17 + 273 = 290 K

Gas constant (R) = 62.396 L•torr/mol•K

The number of moles (n) =?

How to determine the number of moles:

The number of moles present can be obtained by using the ideal gas equation as illustrated below:

[tex]PV=nRT[/tex]

Divide both sides by RT

[tex]n=\dfrac{PV}{RT}[/tex]

[tex]n=\dfrac{(750\times 1.350}{62.396\times 290)}[/tex]

[tex]n=0.056\ moles[/tex]

Hence, the number of moles of air present is 0.056 mole

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Answer:

answer in picture

Explanation:

pls explain
help would be appreciated

Answers

Answer:

b

Explanation:

many solids are crystalline hence a is eliminated

graphite contains free electrons while diamond uses all electrons in bonding and many substances have that property hence c is eliminated

only substances made up of carbon produce carbondioxide as the product when burnt

Is food a fuel? Explain your answer. a ?​

Answers

Answer:

no, food is not a fuel because it just give energy to do many activities but it will not provide any fuel only the dead and decaying material which berries under the soil then after a long years it becomes fossil fuel

The acid dissociation constant of alloxanic acid is. Calculate the ph of a solution of alloxanic acid. Round your answer to decimal place

Answers

Answer:

The pH of a 4.4 M solution of boric acid is 4.3

Explanation:

at t=0  cM              0             0

at eqm                    

So dissociation constant will be:

Give c= 4.4 M and  = ?

Putting in the values we get:

Also

Thus pH of a 4.4 M  solution is 4.3

A tank of oxygen holds 20.0 L at a pressure of 15.0 atm. What is the pressure of this same gas a constant temperature if the oxygen is allowed to expand to 300.0 L?​

Answers

Answer:

khate ko ban randi ko ban

If an element has no electrons to share and is stable, what family is it
found in?
A alkali metals
B. noble gases
c. halogens

Answers

noble gases: they are the atoms with a full outer shell of electrons so they are cery unreactive

Draw the structures of the aldol addition and condensation products of 3‑methylbutanal

Answers

Aldol condensation involves  two aldehydes or two ketones or an aldehyde and a ketone. The product of the reaction is shown in the image attached.

What is Aldol condensation?

Aldol condensation is a reaction that involves two aldehydes or two ketones or an aldehyde and a ketone. This reaction occurs at the carbonyl group as one of the carbonyl compounds is in the enolate form.

The product of the reaction is shown in the image attached. This gives the mechanism for the Aldol condensation of the compound 3‑methylbutanal.

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What is the ph of the solution formed by mixing 25. 0 ml of a 0. 15 m solution of nh3 with 25. 0 ml of 0. 12 m hcl? (kb for nh3 = 1. 8 10–5 )

Answers

Answer:

Explanation:

the answer is 8.66


Mark me brainliest please.

The pH of the solution formed by mixing 25. 0 ml of a 0. 15 m solution of NH₃ with 25. 0 ml of 0. 12 m HCl is 8.66.

What is pH?

pH is potential hydrogen. It is the measurement of the acidity and basicity of any solution.

The solution of NH₃ is 25. 0 ml of a 0. 15 m

The solution of HCl is 25. 0 ml of 0. 12 m hcl

The pkb value is [tex]1.8 \times 10^-^5[/tex]

Putting the value in the formula

[tex]pOH=pKb +log[NH_3][HCl]\\\\ pOH = 1.8 \times 10^-^5+ log \dfrac{25.0 \times 0.15}{ 25.0 \times 0.12} \\\\ pOH = 1.8\times10^-^5+ log1.25 \\\\pOH = 1.8\times 10^-^5 + 1.25 = 3.05\\\\ pH = 14 - pOH = 14 - 1.25 = 8.66[/tex]

Thus, the pH of the solution formed by mixing 25. 0 ml of a 0. 15 m solution of NH₃ with 25. 0 ml of 0. 12 m HCl is 8.66.

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Calculate the number of atoms in 2.1g of nitrogen

Answers

Answer:

2.1×6.02×1023÷ 14

9.03×1022 atom of nitrogen

Explanation:

Suppose you’re out of acetic acid (ch3cooh) and decide to use ethanol (ch3 ch2oh) as the solvent in the transformation of 3 into 4. Would this be a wise choice, and why?

Answers

The use of ethanol instead of acetic acid is not the wise choice.

Why use of ethanol instead of acetic acid is not the wise choice?

When you are out of acetic acid and decide to use ethanol as the solvent in the transformation, it would not be a wise choice because acetic acid and ethanol are two totally different chemicals. Due to different in features, it can't act the same and the desirable results can't be observed.

So we can conclude that use of ethanol instead of acetic acid is not the wise choice.

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To use ethanol in place of acetic acid as a solvent in the transformation of 3 into 4, is not a wise choice.

What are functional groups?

Functional groups are the specific groups which after attaching to any molecule changes the property of the molecule.

Acetic acid has carboxylic (-COOH) group as functional group and ethanol has hydroxyl (-OH) functional group and both has different properties from each other. So use to ethanol in place of acetic acid is not correct as it will not fulfill the requirements of acid.

Hence use of ethanol in place of acetic acid is not a wise choice.

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Clouds form when water vapor ____________ out of the air.

Answers

Answer:

condenses

Explanation:

change or cause to change from a gas or vapor to a liquid.

Hello people ~
Which of the following cannot be used to extinguish the fire caused by electricity?

A. Carbon dioxide

B. Blanket

C. Sand

D. Water

Answers

D. Water

carbon dioxide reduces the oxygen concentration in the surrounding, thus no combustion can taken place.

Blanket cuts the oxygen supply from the surroundings.

Sand stops the oxygen from reaching the fire for a few moment.

Water gives the fire a wide spread across the burning surface.

what is a metal with 20 protons?

Answers

Answer: Calcium

Hope this helps

A gas has a pressure of 326 mm Hg at 20 degrees Celsius. What is the temperature at 52.4 k Pa?

Answers

Answer:

it's is math that you can answer with your sister and your mother

Answer:

346 degrees because 326+20= 346

1. What is the percent increase in carbon dioxide in the atmosphere between 2015 and 2020? Between 1960 and 2020? SHOW YOUR WORK!!!!

Answers

Answer:An accompanying WMO report on greenhouse gas concentrations shows that 2015-2019 has seen a continued increase in carbon dioxide (CO2) levels and other key greenhouse gases in the atmosphere to new records, with CO2 growth rates nearly 20% higher than the previous five years.

Explanation:That's because the annual growth rate of atmospheric carbon dioxide has roughly tripled, from 0.6 ppm per year in the early 1960s to an average 2.1 ppm during the past 10 years. At Mauna Loa, carbon dioxide concentrations in 2015 jumped by 3.05 ppm

Write a paragraph, citing examples from the text, to explain how Dr.
Paul Chirik's process could result in the development of flexible
manufacturing technologies.

Answers

Paul J. Chirik developed methods associated with chemistry catalysis and transition metals, which may result useful for the development of manufacturing technologies.

What is catalysis?

Catalysis refers to the chemical processes that increase the rate of different types of reactions by lowering its activation energy.

Proteins (enzymes) are biological catalysts that increase the rate of chemical reactions in biological systems.

Catalysis may be reached by using transition metals (e.g., actinium and rutherfordium), which result useful in the development of manufacturing technologies.

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What is the difference between a reflected and a diffracted sound wave?

Answers

Answer:

Diffraction involves a change in direction of waves as they pass through an opening or around a barrier in their path.

Reflection involves a change in direction of waves when they bounce off a barrier; refraction of waves involves a change in the direction of waves as they pass from one medium to another

Explanation:

If we use water waves as an example, waves hitting shallower water at an angle will slow down and change direction slightly. That is refraction

Waves hitting an island will bend and eventually close in on the "shadow" of the island. That is diffraction

A bicycle tire has a volume of 1.0 l at 22°c. if the temperature of the tire is increased to 52°c, what is the resulting volume of the tire? type in your answer using the correct number of significant figures. use the formula for charles' law: v1 t1 = v2 t2 l

Answers

The relationship between the volume, temperature, and pressure of the gas can be given by Charles law. The volume of the tire is 1.1 L.

What is Charle's law?

According to Charles's law, the volume is directly proportional to the temperature of the gas at a constant pressure.

Charle's law can be shown as,

[tex]\rm \dfrac{V_{1}}{T_{1}} = \rm \dfrac{V_{2}}{T_{2}}[/tex]

Given,

Initial volume = 1.0 L

Initial temperature = 295 K

Final volume = ?

Final temperature = 325 K

Substituting values in the above equation the final volume can be calculated as:

[tex]\begin{aligned}\rm V_{2} &= \rm \dfrac{V_{1}T_{2}}{T_{1}}\\\\&= \dfrac{ 1 \times 325}{295}\\\\&= 1.1\;\rm L\end{aligned}[/tex]

Therefore, the final resulting volume of the tire is 1.1 L.

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Answer:

1.1 L

Explanation:

How should you prepare a buret for titration before loading it with titrant?.

Answers

The buret should be conditioned before loading it with the titrant.

What is a Buret?

This is defined as laboratory apparatus which is used in quantitative chemical analysis to measure the volume of a liquid or a gas.

It should be conditioned with the titrant solution to prevent dilution from occurring as a result of cleaning it with water.

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A bicycle tire has a volume of 1. 0 L at 22°C. If the temperature of the tire is increased to 52°C, what is the resulting volume of the tire? Type in your answer using the correct number of significant figures. Use the formula for Charles' Law: V1 T1 = V2 T2 L.

Answers

The resulting volume of the tire would be 1.1 L

What is Charles's law?

According to this law, the volume of a given gas is directly proportional to its temperature, provided that the pressure remains constant.

The law can be presented mathematically as;  

[tex]\dfrac{V_1}{T_1} =\dfrac{V_2}{T_2}[/tex]

In this case, V1 = 1.0 L, T1 = 22 °C (295 K), T2 = 52 °C (325 K).

[tex]V_2=\dfrac{V_1T_2}{T_1}[/tex]V

[tex]V_2=\dfrac{1\times 325}{295}=1.1\ L[/tex]

                             

Hence the final volume of the tire will be 1.1 L

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The graph shows the potential energy diagram for an unknown chemical change.


Which chemical change could the graph represent? (1 point)

Group of answer choices

Electrolysis of water

Combustion of iron

Photosynthesis in plants

Adding heat to decompose calcium carbonate

Answers

Based on the energy usage shown by the graph, the best option for the chemical change represented is the combustion of iron.

What chemical change is shown by the graph?

The combustion of iron in oxygen leads to the formation of Iron (III) oxide in solid form.

For the combustion of iron to happen, a lot of heat has to be applied to the iron which is why the potential energy of reactants is high. As the reaction progresses, the energy needed reduces as iron (III) oxide is formed.

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