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Answer: Benzaldahyde

Explanation: the C₆H₅- represents the substituted benzene ring and the

CHO should represent the functional group of aldehyde

Answer:

The name of the compound is benzaldehyde

Ideal gas law is valid only for ideal gas not for vanderwaal gas. Therefore, 50.8L  of volume would be occupy by carbon dioxide at STP.

Ideal gas equation is the mathematical expression that relates pressure volume and temperature. There is no force of attraction between the particles.

Mathematically the relation between Pressure, volume and temperature can be given as

PV=nRT

where,

P = pressure of gas

V= volume of gas

n =number of moles of gas

T =temperature of gas

R = Gas constant = 0.0821 L.atm/K.mol

Mole= given mass÷ Molar mass

mole=  100. g÷ 44.01 g/mol

       =2.27moles

One mole of ideal gas contain 22.4L of volume

2.27moles of ideal gas contain 22.4L×2.27=50.8L of volume

Therefore, 50.8L volume would be occupy by carbon dioxide at STP.

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Answer:

The reducing agent donates electron to the oxidizing agent and gets oxidized itself

Explanation:

In an oxidation-reduction reaction, also known as REDOX reaction, one of the reactants is called OXIDIZING AGENT while the other is called REDUCING AGENT. The reducing agent is called so because it reduces another substance in the reaction.

It reduces another atom/ion by donating electrons to that atom, hence, getting oxidized itself in the process. For example, in the following reaction:

H2 + F2 → 2HF

Fluorine is getting oxidized from -2 to 0 by donating electrons to H and reducing it from +2 to 0.

Answer:

Reduces another atom

Explanation:

:)

According to the research, the correct option is d. Fernando is currently going through Detoxification process in which his body is cleared of drugs.

This is the treatment aimed at restoring the body's physiological homeostasis after it has been disturbed by the consumption of psychotropic substances as drugs.

In this sense, this process is carried out under the supervision of specialists in the treatment of addictive behaviors.

Therefore, we can conclude that Detoxification is a process of eliminating drugs or substances harmful to health to achieve physiological stability in the body.

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Answer: does

Explanation: there is a force acting to make it in equillibrum

Answer:

I didn't draw this but I think they're asking you to draw this

Explanation:

The empirical formula of a substance that is 53. 5% c, 15. 5% h, and 31. 1% n by weight is C₂H₇N.

To determine the empirical formula, we need to convert the percentages to moles. Assume 100 g of the substance, then we have:

53.5 g C / 12.011 g/mol = 4.46 mol C

15.5 g H / 1.008 g/mol = 15.38 mol H

31.1 g N / 14.007 g/mol = 2.22 mol N

We then divide each by the smallest number of moles to get the mole ratio:

C: 4.46 mol / 2.22 mol = 2

H: 15.38 mol / 2.22 mol = 6.92 (rounded to 7)

N: 2.22 mol / 2.22 mol = 1

So the empirical formula is C₂H₇N.

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Answer:

4.44 g

Explanation:

First, we need to determine the limiting reactant. The balanced chemical equation is:

2Na + 2H2O → 2NaOH + H2

From the equation, we see that 2 moles of sodium reacts with 2 moles of water to produce 1 mole of hydrogen.

Moles of Na in 120 g of Na:

Molar mass of Na = 22.99 g/mol

Number of moles of Na = mass/molar mass = 120 g / 22.99 g/mol = 5.22 mol

Moles of water in 80 g of H2O:

Molar mass of H2O = 18.02 g/mol

Number of moles of H2O = mass/molar mass = 80 g / 18.02 g/mol = 4.44 mol

Since 5.22 moles of Na requires 5.22 moles of H2O, water is the limiting reactant.

The moles of hydrogen produced is equal to the moles of the limiting reactant, which is 4.44 mol.

The mass of hydrogen produced is:

Mass = number of moles x molar mass

Mass = 4.44 mol x 1 g/mol = 4.44 g

So the grams of hydrogen produced by the 120 grams Na and 80 grams of water is 4.44 grams.

Answer:

Gene

Explanation:

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Neutrons - 48

Protons - 36

Electrons - 36

The chemical element Krypton has 48 neutrons, 36 electrons and 36 protons.

Krypton is a chemical element with the symbol Kr, atomic number 36 and atomic mass of 83.79.

The number of neutrons, protons and electrons present in chemical element krypton is given as follows;

Thus, the chemical element Krypton has 48 neutrons, 36 electrons and 36 protons.

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Even if all other elements are at or close to the ideal range of tolerance, the limiting factor principle states that too much or too little of any physical or chemical factor can restrict or prevent population increase. Some species have a remarkable capacity for population growth.

Even when all other elements are at or close to their ideal levels, too much or too little of any physical or chemical factor might stop population increase. This ecological principle, what is it?

Food, water, habitat, and mates are the typical ecological limiting variables. The carrying capacity of an environment will depend on the accessibility of these elements. Demand for food increases along with population growth. Given the scarcity of food, organisms will start vying for it.

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Using the distribution coefficient, we can calculate the masses removed from water: a) 45.8 g; b) 48.8 g.

If the distribution coefficient between DCM (methylene chloride) and water is 11, that means that the concentration in DCM is 11 times greater than the concentration in water.

a) When equal volumes of the solvents are used, the amount of the solute in DCM (A) will be 11 times greater than the amount of solute remaining in water (B).

A + B = 50.0 g

A = 11 B

11 B + B = 50.0 g

12 B = 50.0 g

B = 50.0 g / 12

B = 4.17 g

A = 11 * 4.2 g

A = 45.8 g

b) Because the solvent volumes are not the same, we have to use concentrations. We can still label the mass of Y in DCM as A, and the mass of Y in water as B. After a single extraction with 125 mL of DCM we get:

A₁ + B₁ = 50.0 g

(A₁ / 125 mL) / (B₁ / 250 mL) = 11

2 A₁ / B₁ = 11

A₁ = 11 B₁ / 2

A₁ = 5.5 B₁

5.5 B₁ + B₁ = 50.0 g

6.5 B₁ = 50.0 g

B₁ = 50.0 g / 6.5

B₁ = 7.7 g

So, after the first extraction, 7.7 g of Y has remained in water. That means that for the second extraction:

A₂ + B₂ = 7.7 g

A₂= 5.5 B₂

5.5 B₂ + B₂ = 7.7 g

6.5 B₂ = 7.7 g

B₁ = 7.7 g / 6.5

B₁ = 1.2 g

After the second extraction, only 1.2 g of Y has remained in water, while 50.0 g - 1.2 g = 48.8 g of Y was removed from water.

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The cell potential for the given galvanic cell is +0.401 V.

The cell potential for the given galvanic cell. Here's a step-by-step explanation:

1. Identify the half-reactions: In the given galvanic cell, the half-reactions are:
  - Anode (oxidation): H2(g) → 2H+(aq) + 2e-
  - Cathode (reduction): O2(g) + 2H2O(l) + 4e- → 4OH-(aq)

2. Determine the standard reduction potentials (E°): You can find the standard reduction potentials for the half-reactions in a standard reduction potential table. For the given reactions, we have:
  - E°(H2/H+) = 0 V (as it is the reference value)
  - E°(O2/OH-) = +0.401 V

3. Calculate the cell potential (Ecell): To calculate the cell potential, use the equation Ecell = E°cathode - E°anode. In this case, it would be:

  Ecell = E°(O2/OH-) - E°(H2/H+) = +0.401 V - 0 V = +0.401 V

Therefore, the cell potential for the given galvanic cell is +0.401 V.

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The control allowed me to have a point of reference in which no change should have occurred. If the control solution changed color, I would conclude there were organisms in the water.

The purpose of using change management is to overcome unpredictability and minimize undesirable project consequences. Project managers can use change management processes to determine whether a project is on budget improve team productivity and measure progress.

Change control procedures typically require two documents. Change Request: A change request document details the change and initiates the change control procedure. Project managers can use change management processes to determine whether a project.

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Answer:

Molarity = 0.08 M

Explanation:

Given data:

Mass of copper sulfate = 3.8 g

Volume of water = 250 cm³  (250/1000 = 0.25 L)

Concentration of solution = ?

Solution:

Number of moles of copper sulfate:

Number of moles = mass/molar mass

Number of moles = 3.8 g/ 159.6 g/mol

Number of moles = 0.02 mol

Concentration:

Molarity = Number of moles / volume in L

By putting values,

Molarity = 0.02 mol / 0.25 L

Molarity = 0.08 mol/L

Molarity = 0.08 M

Answer:

Start with your basic equation for pH

pH = - log [H+]

then rearrange the equation to solve for [H+]

just like to get move something multiplied from the one side to the other you divide both sides by that number ( a*b = c …. a*b/b = c/b …. a = b/c), you do the ‘inverse’ of a log function, which is 10^

first bring the - over

-pH = log [H+]

then remove the log by taking 10^ on both sides

10^(-pH) = 10^(log [H+])

10^(-pH) = [H+]

and there is your relationship.

Explanation:

Answer:

D

Explanation:

Oxygen is an element.

sugar is a hydrocarbon derivative.

water is a compound made of hydrogen and oxygen. There are no metals in it at all.

So you are left with Halite. The common name for halite is salt. The chemical formula is NaCl

Answer: D

It is true that according to Hubble's law, the farther away a galaxy is, the faster it is moving away from us.

It is true that the formation of a star occurs when nuclear fusion begins to fuse light elements into heavier ones;

The distance to the nearest stars can be determined by parallax, the apparent shift of a start against background stars observed as the earth moves along its orbit. (Option B)

Based on the accompanying H-R Diagram, the type of start that has the greatest temperature is the blue giants (Option C)

Two hydrogen atoms come together in a nuclear fusion reaction to produce Helium Gas. (Option A).

Hubble's law, which essentially states that the velocity of a galaxy (or, as it is commonly plotted, its redshift) is precisely proportionate to its distance, also reveals crucial information about the condition of the universe. There should be no relationship between distance and velocity if the cosmos is static and unchanging.

Hubble's law is the physical cosmology observation that galaxies move away from Earth at a rate proportionate to their distance. In other words, the farther they are from Earth, the quicker they are travelling away.

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The byprοducts in this reactiοn are acetic acid (οptiοn A) and ethanοl (οptiοn C).

In acid catalysis and base catalysis, a chemical reactiοn is catalyzed by an acid οr a base. By Brønsted–Lοwry acid–base theοry, the acid is the prοtοn (hydrοgen iοn, H+) dοnοr and the base is the prοtοn acceptοr. Typical reactiοns catalyzed by prοtοn transfer are esterificatiοns and aldοl reactiοns.

The acid-catalysed hydrοlysis οf diethyl acetamidοbenzylmalοnate can lead tο variοus by prοducts depending οn the reactiοn cοnditiοns and specific chemical pathways. Hοwever, withοut mοre detailed infοrmatiοn οr a specific reactiοn mechanism, it is difficult tο prοvide a cοmprehensive list οf the by prοducts that may fοrm.

Based οn the infοrmatiοn prοvided, the acid-catalysed hydrοlysis οf diethyl acetamidοbenzylmalοnate delivers the desired (+)-phenylalanine hydrοchlοride prοduct and the fοllοwing byprοduct(s):

E. Bοth A and C: Acetic acid and ethanοl.

The hydrοlysis οf diethyl acetamidοbenzylmalοnate invοlves the cleavage οf ester bοnds, resulting in the fοrmatiοn οf acetic acid as a byprοduct. Additiοnally, since diethyl acetamidοbenzylmalοnate is an ester, hydrοlysis οf the ester bοnds can alsο prοduce ethanοl as anοther byprοduct.

Therefοre, the byprοducts in this reactiοn are acetic acid (οptiοn A) and ethanοl (οptiοn C).

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Complete Question :

Answer:

mass

Explanation:

The triple beam balance is an instrument used to measure mass very precisely.

Answer:

approximately 3423 grams

Explanation:

The molecular weight of CaCO3 is 100.0869

Therefore,

Mass = 34.2 × 100.0869

= 3422.97198

Answer:

d

Explanation:

Alfred Wegener was the one who proposed the idea although he wasn't believed until after he died

The scientist who presented the theory of Continental Drift is Alfred Wegener. The correct option is D.

The continental drift idea provided an explanation for why the continents had moved from their original places. Once linked as a single entity, called a "Subcontinent."

Since continental rocks are too light to sink to the ocean floor, the common belief that mountains were to blame for their sinking was later disproved.

Alfred Lothar Wegener is a climatologist. He discovered the continental drift theory. The science of plate tectonics has now supplanted the theory of continental drift. The scientist Alfred Wegener is most closely identified with the hypothesis of continental drift. He referred to it as continental drift.

Therefore, the correct option is D. Alfred Wegener.

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Air Mass Definition

Air mass can be defined as a large air volume with uniform temperature and moisture. These masses can stretch thousands of miles horizontally over the Earth’s surface, and vertically from ground level to the stratosphere (10 miles) into the atmosphere.

Categorization of Air Masses

Meteorologists classify air masses based on where they are formed. Here is the classification.

Typically, there are 4 types of air masses

Arctic: These air masses form in the Arctic region and are very cold.

Tropical: These air masses form in low lying latitudes and are warm up to a moderate level.

Polar: These air masses form in the high-latitude region and are cold.

Equatorial: They start forming over the Equator and are warm.

Besides this classification, there is another way to categorise air masses. Meteorologists classify them based on whether they form over water or land. These distinctions are:

Maritime: Maritime ones form over the water bodies and are filled with moisture.

Continental: Whereas, the Continental ones form over the land and are arid.

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Answer:

a) elastic potential energy

b) kinetic energy

c) the forces acting on the stone are gravitational force and an upward force opposing the gravitational force.

d) potential and kinetic energy

Making moral judgments or decisions is not a characteristic of science.

The scientific method refers to systematic methods employed by scientists in their quest for discoveries and explanation of phenomena.

The scientific method includes:

Thus, the characteristics of science include:

Therefore, making moral judgments or decisions is not a characteristic of science.

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People are genetically predisposed to their body types, but once diet becomes a factor, the environment begins to play a major role in how the body develops. As a result, it can be concluded that external factors influence the genetic constituent.

The external factors, such as food and environment, affect the genetic constitution of the person because when the person consumes junk food that has carcinogenic products, it can change the genes of the cells and cause cancer, obesity, etc. In this way, genes are regulated by external factors too.

Hence, it can be concluded that external factors influence the genetic constituent.

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The collision's energy and the way the molecules are positioned at the time of contact. The molecules move faster and possess more KE at extremely high temperatures. Consequently, there are more collisions.

one or more new elements are formed as a result of the reorganization of the atoms or molecules of two substances when come into contact. Electrons of one material interact with some of those of another to produce chemical reactions.

Reactants participate in a chemical reaction and turn into byproducts through a chemical change in a chemical reaction. Inhaling oxygen, by instance, results in the creation of atmospheric co2, water, and energy when combined with glucose.

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Answer:

Translated < what is the maximum number of electrons in the sublevel 4s?

answer 32 electrons

Water loses a proton and is acting as an acid is true of water in a base ionization reaction

Water will self-ionize to a very small extent under normal conditions. The reaction in which a water molecule donates one of its protons to a neighbouring water molecule, either in pure water or in an aqueous solution, is called the self-ionization of water.

In an autoionization process, one water molecule can react with another to form an OH– ion and an H3O+ ion:

2H2O(l) ⇆ H3O+(aq) + OH–(aq)

and, In aqueous solutions, H3O+ is the strongest acid and OH− is the strongest base that can exist in equilibrium with H2O.

What is Ionization?

Ionisation is defined as the process by which an atom or molecule gains or loses a positive or negative charge as a result of chemical changes. An ion is an electrically charged atom or molecule that results. If the ion has a negative charge, it is called an anion; if it has a positive charge, it is called a cation.

The basic ionisation reaction can be represented as follows:                    

M → M+ + e–

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