except for speed, your nervous system is most similar to


A-A metro bus that makes many stops along its route

B-an air trip where you take multiple planes to get to your destination

C-A cruise ship that makes a circular route back home to port

D-a race car speeding down a track, making pit stops occasionally

Answer:

\(M_{CO_2}=0.01665M\)

Explanation:

Hello,

In this case, the Henry's law allows us to relate the molar concentration and partial pressure of a solute (carbon dioxide) in a solution (solvent is water) by:

\(M_{CO_2}=H_{CO_2}p_{CO_2}\)

Whereas we introduce the Henry constant, therefore, we can easily compute the molar solubility by:

\(M_{CO_2}=p_{CO_2}*H_{CO_2} =0.45atm*3.7x10^{-2}\frac{M}{atm}\\\\M_{CO_2}=0.01665M\)

Regards.

Adding the sugar after heating the mixture would allow you to dissolve more sugar, which would result in a sweeter chocolate bar.

When you dissolve sugar in a liquid, such as in a chocolate mixture, there is a limit to the amount of sugar that can be dissolved at a given temperature. This limit is known as the solubility of the sugar in that liquid. The solubility of sugar in water is higher at higher temperatures, which means that you can dissolve more sugar in hot water than in cold water. The same principle applies to chocolate mixtures.

By heating the chocolate mixture, you increase the temperature of the mixture, which in turn increases the solubility of the sugar in the mixture. This allows you to dissolve more sugar in the mixture than if you were to add the sugar to the mixture at room temperature or when it is cold.

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--The given question is incorrect, the correct question is

"You are in a laboratory creating a new chocolate bar. You want to create the sweetest chocolate bar by maximizing the sugar concentration. You are doing this by adding the sugar to a chocolate mixture. Which would allow you to dissolve more sugar?"--

Taking into account the definition of enthalpy of a chemical reaction, the quantity of heat released when 5.87 moles of CH₄ are burned is 4,707.74 kJ.

The enthalpy of a chemical reaction as the heat absorbed or released in a chemical reaction when it occurs at constant pressure. That is, the heat of reaction is the energy that is released or absorbed when chemicals are transformed into a chemical reaction.

The enthalpy is an extensive property, that is, it depends on the amount of matter present.

In this case, the balanced reaction is:

CH₄ (g) + 2 O₂ (g) → CO₂ (g) + 2 H₂O(g)

and the enthalpy reaction ∆H° has a value of -802 kJ/mol.

This equation indicates that when 1 mole of CH₄ reacts with 2 moles of O2, 802 kJ of heat is released.

When 5.87 moles of CH₄ are burned, then you can apply the following rule of three: if 1 mole of CH₄ releases 802 kJ of heat, 5.87 moles of CH₄ releases how much heat?

\(heat=\frac{5.87 molesof CH_{4}x802 kJ}{1 mol of CH_{4} }\)

heat= 4,707.74 kJ

Finally, the quantity of heat released when 5.87 moles of CH₄ are burned is 4,707.74 kJ.

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We can see here that the best fuel is the one that produces the most heat per unit mass. In this case, the fuel that produces the most heat per unit mass is methanol.

Fuel is a substance that is used to produce energy through combustion or other chemical reactions. It is commonly utilized to power various forms of transportation, generate heat or electricity, and operate machinery and appliances.

The results of the experiment are shown below:

Fuel            Mass (g)      Heat produced (J)       Heat per gram (J/g)

Methanol 1.0                          350                   350

Ethanol         1.0                          250                   250

Propane         1.0                          200                   200

Butane         1.0                          150                            150

Pentane         1.0                          100                            100

It is important to note that the results of this experiment are only a measure of the heat produced by the fuels.

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One action by industry leaders that would directly address the causes of global warming is to reduce greenhouse gas emissions.

Greenhouse gases, such as carbon dioxide, methane, and nitrous oxide, trap heat in the atmosphere and contribute to global warming. Industries that are major contributors to greenhouse gas emissions include transportation, electricity generation, and manufacturing.

Industry leaders can take a variety of steps to reduce their greenhouse gas emissions, such as investing in renewable energy sources, increasing energy efficiency, and implementing carbon capture and storage technologies. They can also encourage their suppliers and customers to adopt more sustainable practices, and advocate for policy changes that support the transition to a low-carbon economy.

By taking action to reduce greenhouse gas emissions, industry leaders can directly address the causes of global warming and help mitigate its impacts on the environment and society.

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This molecule will have dipole-dipole forces.

Answer: B

The first question has an answer of A: the bulb turns 60 J of electrical energy into heat and light every second. It is True that a gas's molecules are significantly more spaced away from one another than those of a solid or liquid.

A heated filament or a gas discharge generate light in a light bulb, an electric device. The light of the bulb is produced by a wire filament that is heated by an electric current. Thomas Edison created the first incandescent light bulb that was commercially viable in 1879, and by creating a useful source of artificial light, it completely changed the way we live today. With the introduction of compact fluorescent bulbs, LED lights, and other technologies, light bulbs have developed over time to become more energy-efficient. Light bulbs today are a necessary part of contemporary life, providing illumination for private residences, commercial buildings, and public areas.

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Answer:

A ---->gamma ray

Explanation:

Gamma rays have the highest frequencies among all electromagnetic waves and therefore have the shortest wavelengths.

Answer:

protons are red neutrons are green electrons are yellow

Explanation:

TIE FIGHTERS GO ZOOOOOM

The calculated formula masses to 133.5 amu, we find that the substance with a formula mass closest to 133.5 amu is (d) AlCl3. Therefore, the answer is option D.

To identify the substance with a formula mass of 133.5 amu, we need to calculate the formula mass of each given substance and compare it to 133.5 amu.

(a) MgCl2:

The formula mass of MgCl2 can be calculated by adding the atomic masses of magnesium (Mg) and chlorine (Cl).

Mg: atomic mass = 24.31 amu

Cl: atomic mass = 35.45 amu

Formula mass of MgCl2 = (24.31 amu) + 2(35.45 amu) = 95.21 amu

(b) SCl:

The formula mass of SCl can be calculated by adding the atomic masses of sulfur (S) and chlorine (Cl).

S: atomic mass = 32.07 amu

Cl: atomic mass = 35.45 amu

Formula mass of SCl = 32.07 amu + 35.45 amu = 67.52 amu

(c) BCl:

The formula mass of BCl can be calculated by adding the atomic mass of boron (B) and chlorine (Cl).

B: atomic mass = 10.81 amu

Cl: atomic mass = 35.45 amu

Formula mass of BCl = 10.81 amu + 35.45 amu = 46.26 amu

(d) AlCl3:

The formula mass of AlCl3 can be calculated by adding the atomic mass of aluminum (Al) and 3 times the atomic mass of chlorine (Cl).

Al: atomic mass = 26.98 amu

Cl: atomic mass = 35.45 amu

Formula mass of AlCl3 = 26.98 amu + 3(35.45 amu) = 133.78 amu. Option D

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The nonessential saturated fatty acid with four double bonds is called Palmitoleic Acid, and its structural formula is CH₃(CH₂)₅CH=CH(CH₂)₇COOH. Its IUPAC name is (Z)-hexadec-9-enoic acid.

Nonessential saturated fatty acids are fatty acids that can be synthesized by the human body and are not required to be obtained from the diet. The human body has the ability to produce these fatty acids through de novo synthesis.

The structure of a nonessential saturated fatty acid with four double bonds is as follows:

Name: Palmitoleic Acid

Structural Formula: CH₃(CH₂)₅CH=CH(CH₂)₇COOH

IUPAC Name: (Z)-hexadec-9-enoic acid

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Answer:

c. energy from splitting energy

Explanation:

The value of the rate constants at various temperatures can be measured from the plot of ln K versus 1/T. The activation energy of the reaction obtained from the plot is

The minimum excess energy that the reactants must acquire so as to have energy equal to the threshold energy for the reaction is defined as the activation energy.

In the plot of ln K versus 1/T the slope obtained is [ -Eₐ / 2.303 R ] and the intercept on the y -axis is equal to log A.

Here the slope in the plot is given as − 5780 K. Then the activation energy is calculated as:

Slope = -Eₐ / R

-5780 K = -Eₐ / 8.314 J/ mol.K

Eₐ =  8.314 J/ mol.K × 5780 K = 48054.9 J/ mol = 48.054 kJ.

Thus the activation energy of the reaction is 48054.9 J/ mol or 48.054 kJ.

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Answer:

Humans get muscle cramps when they start sport movemement wih out training and there is a store of calorie and amino acids so when it heated fastly there were some disease like muscle cramps

Answer:

Answer:

During the initial cell operation, each reaction is thermodynamically favorable, but the larger operating potential of the lithium-iodine cell indicates that its cell reaction is more thermodynamically favorable.  ( B )

During the initial cell operation, the oxidation of iodine is  thermodynamically favorable but the oxidation of mercury is not. ( C )

Explanation:

The major Differences between The Zinc mercury cell and Lithium-iodine cell are :

During the initial cell operation, each reaction is thermodynamically favorable, but the larger operating potential of the lithium-iodine cell indicates that its cell reaction is more thermodynamically favorable.   and

During the initial cell operation, the oxidation of iodine is thermodynamically favorable but the oxidation of mercury is not.

Given the relationship below,

Δ G = -nFE

E = emf of cell ,  G = free energy.

This relationship shows that if E is positive the reaction will be thermodynamically favorable also if E is large it will increase the negativity of free energy  also From the question we can see that with the reduction of mercury the value of E is more positive and this shows that Mercury is thermodynamically unfavorable

Answer:

are gases at room temperature

usually do not react with other elements

are in a group called the noble gases

are nonmetals

Group 18 is called the noble gas group which is gases at room temperature and is unreactive. They are non-metals and generally do not react with other elements. Thus, options b, c, d, and e are correct.

Noble gases are classified as the group and family of the periodic table that is considered inert and has no color and odor. It includes six elements that have balanced shells.

The valence shells of the gases are complete and stable. At room temperature, they exist as gas and are almost unreactive with other elements hence called inert.

They include helium, argon, neon, xenon, krypton, and radon. They are non-flammable and are characterized by low melting and boiling points with occurrences majorly in their natural forms.

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Answer:

The disadvantages or the limitations are as follows:

Dot structures: based on an empirical trend “atoms like octets”, not a rigorous description of the true nature of electrons

Arrow and line diagrams: Does not say much of the possible properties of the molecule.

Written electron configurations: no 3D representation of the molecule or the atom

Explanation:

please mark my answer as brain list

In this solution, sodium ion [Na+] has a molar concentration of 0.02745 M. (or 27.45 mM).

A salt combining sodium and phosphate, sodium phosphate has the chemical formula Na3PO4. It is an inorganic chemical that comes in a variety of shapes, including hydrated and anhydrous versions.

The amount of sodium phosphate in the solution must first be determined in moles:

Number of moles of Na3PO4 = Mass of Na3PO4 / Molecular weight of Na3PO4

Number of moles of Na3PO4 = 1.500 g / 163.94 g/mol

Number of moles of Na3PO4 = 0.00915 mol

The total number of moles of sodium ions in the solution is because one molecule of sodium phosphate (Na3PO4) contains three sodium ions (Na+). 

Number of moles of Na+= 3 x Number of moles of Na3PO4

Number of moles of Na+ = 3 x 0.00915 mol

Number of moles of Na+ = 0.02745 mol

The sodium ion [Na+] molar concentration in the solution can then be calculated as follows:

Moles of Na+ / volume of solution = number of moles of Na+

Na+ has a molar concentration = 0.02745 mol / 1.00 L.

Na+ has a molecular weight = 0.02745 M.

As a result, this solution has a molar sodium ion concentration of 0.02745 M. (or 27.45 mM).

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Answer:

\(\blue{\boxed{\red{\sf CCl_4 \: will \: dissolve \: in \: gasoline}}}\)

Explanation:

The simple concept that would be applied is

'Like Dissolves Like.'

According to this, the polar solvent will dissolve the polar solutes and the non-polar solvent will dissolve the non-polar solutes.

classification of given compounds as polar or non-polar,

\(\begin{gathered}\boxed{\begin{array}{c|c} \bf Polar & \bf Non-polar \\ \\ \frac{\qquad \qquad}{} & \frac{\qquad \qquad}{} \\ \sf NaCl & \sf CCl_4 \\ \\ \sf NaOH & \sf - \\ \\ \sf KCl & \sf - \end{array}} \\ \end{gathered}\)

Also, the given data says water is a polar solvent while gasoline is a non-polar solvent. From all the information we have, we can conclude that CCl4 is the only compound that will dissolve in gasoline.

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Answer:

The answer is D) 51.2%

Explanation:

5.12g of 10.00g of the substance is water:

percentage of water= 5.12 x 10.00 =51.2%

Answer:

b

Explanation:

Explanation:

yup,it is correct:-)

Answer:

the genotype would be 50% Rr and 50% rr

the phenotypes would be 50% Red flower (Rr) and 50% white flower (rr)

Explanation:

Answer:

Compound

Explanation:

The sample given to the students is a mixture.

A mixture is composed of substances that are not chemically combined together. The components of a mixture all retain their individual properties. So in a mixture, we can easily notice the individual components if the mixture is heterogeneous.

Clearly, the students were given a heterogeneous mixture because one student observed that the sample is;

Based on these observations, other students can agree that the sample is a mixture.

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Answer:

0.07

Explanation:

to find mole you divide mass by the relative atomic mass

Now you find the relative atomic of of moles pf he number sodium sulfide

then you thequation for finding moles to find mole of sodium

Answer:

Xylem and Phloem

Explanation:

cause

If 38g of water are produced in the reaction, 19 moles of CO₂ were produced.

The term mole is defined as the amount of substance of a system which contains as many elementary entities.

One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.

CO₂ + 4H₂ → CH₄ + 2H₂O

In the above reaction we see that,

2 mole of H₂O produce 1 mol of CO₂

Therefore,

38 gram of  H₂O produce 19gram of CO₂

Thus, If 38g of water are produced in the reaction, 19 moles of CO₂ were produced.

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Answer:

c.warm water before adding the sugar cube

Answer:

C.Warm the warm the water before adding the sugar cube D. Break the sugar cube into smaller pieces

Explanation:

Heating. Speeds up particles causing them to bump and break, further exposing them to the solvent.

Increasing surface area. By crushing or breaking the solid, you are exposing it to more contact with the solute.