lewis acids and bases are most closely with which process?

Answer:

C=8,H=8 and O =3

Explanation:

As the formula is given.

1.Four major features provide clues:

(1) The Sun, planets, and large moons generally rotate and orbit in a very organized way.

(2) With the exception of Pluto, the planets divide clearly into two groups: terrestrial and jovian.

(3) The solar system contains huge numbers of asteroids and comets.

(4) There are some notable exceptions to these general patterns.

2. Gravity causes the early solar nebula to collapse. The solar nebula flattens and warms at its core as it revolves. Within the spinning disk, planetesimals (early planets) begin to form.

3. Because the center of the revolving disk had the least amount of centripetal force, the majority of the mass from the nebula cloud was drawn to it by gravity. The majority of the material was hydrogen gas that was subjected to extreme pressure, which heated it to a critical point, causing it to fuse with another hydrogen atom, resulting in the formation of helium and the birth of the sun.

4. Nebular Theory: argues that when the Sun formed in the nebula, it created planets, asteroids, and other bodies from a spinning disk of materials known as the accretion disk. Almost all revolve in the same direction on their axes. Venus and Uranus are moving backwards on their axes.

5. In the inner solar nebula, only dense materials could condense. The Jovian planets are really denser than the terrestrial planets. Gravity compresses terrestrial planets to a greater extent, causing them to become denser. The gravity of the Sun drew dense materials into the inner solar system.

The nebular hypothesis has been given to states about the spinning dust cloud. The nebula started collapsing due to the force of gravity. It was formed by the rotation of the planets and celestial bodies.

The nebular hypothesis was to give the idea about the origin of the solar system based on dust and gases. According to the nebular hypothesis, the nebula started to collapse due to the force of gravity and the shock of the explosion from the Supernova.

The movement and rotation of the planets in orbits, revolutions, and motions suggest that the formation of the nebula along with asteroids and comets is the reason for its formation.

According to the hypothesis, the Sun was formed by the collapse of the heavy helium and hydrogen clouds that resulted in an increase in the temperature at the core and started to increase its temperature even more.

The hypothesis also accounts for the formation of the planets as the formation of the Sun and rotating dust and gases resulted in a rotating solar system that contained planets in it that was first released as planetesimals. The inner planets are denser compared to the outer planets because of the gravitation force.

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Barium can form ions with a +2 charge and it is called a cation.

Ex:- Ba(s)+2HCl(aq)→BaCl2(aq)+H2(g)

In this redox reaction,

initially, barium shows 0 (s) oxidation no. and after forming the product its oxidation no. changes to +2 (in aq).

When a metal loses electrons and a nonmetal gets those electrons, cations (positively charged ions) and anions (negatively charged ions) are created.

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Answer: It will expand to fill the room.

Explanation:

Gases will expand or compact to fill the available space.

No. Atoms do not get destroyed during reactions.

According to the law of conservation of matter, matters can not be created nor destroyed in any way. Be it during reactions or otherwise.

However, matters can be converted from one form to another during reactions.

Atoms are a form of matter, and thus, cannot be destroyed during reactions.

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A(n) Business Unit is a dynamic sub-organization that can be created and eliminated depending on need.

Business unit is when the company wants its sales in a segmented way. This market offer, or it can be, for example, business area, segment line, market performance cases.

This strategy consists of the form adopted by many companies that divide their activities into independent business units, with different results, strategies and managers.

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Answer:

Option D

Explanation:

sour taste refers to acid hence B is wrong

Bases have pH higher than 7 so D is the correct answer

Answer:

Slippery, high pH, and caustic

(last option listed)

Explanation:

sour taste - acid feature

pH < 7 - acid feature [low pH]

dissolves metal - strong acid feature

bitter taste - base feature

slippery feel - base feature

pH > 7 - base feature [high pH]

dissolves metal - strong base feature

[essentially, traits of base can be described as opposites of acid traits]

So, if you combine these traits, "Slippery, high pH, and caustic" best describes characteristics of a base

Answer:

It has protons, neutrons and electrons

The process of  embryonic development is the process by which the fetus of an organism is developed.

The process of  embryonic development is the process by which the fetus of an organism is developed.

We know that all vertebrates are the same at the embryonic stage as shown in the image. Hence the following statements are true;

Missing parts

Based on these images, what can you conclude about the organisms?

1)They’re a mixture of vertebrates and invertebrates.

2)They have similarities in their embryonic stages that don’t exist in their adult forms.

3)They all undergo metamorphosis.

4)They all contain a backbone, or spinal column.

5)They’re the same species of organism.

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Standard enthalpy change refers to a change in the amount of energy in a reaction that occurs under standard conditions.

It is a property that measures the change in the amount of energy in a reaction involving the formation of substances from pure elements.

Such a reaction must happen under standard conditions which include 1-atmosphere pressure and 298.15 K temperature.

It is designated by  ΔH°.

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Answer:

187 moles NH₃

Explanation:

To find the amount of ammonia formed, you need to multiply the given value by the mole-to-mole ratio consisting of both relevant molecules. The mole-to-mole ratio is made up of the molecules' coefficients in the balanced equation. The desired unit should be placed in the numerator of the ratio. The final answer should have 3 sig figs to reflect the lowest amount of sig figs among the given values.

1 N₂ + 3 H₂ ----> 2 NH₃
^                         ^

93.5 moles N₂          2 moles NH₃
----------------------  x  -------------------------  =  187 moles NH₃
                                    1 mole N₂

The temperature of the nitrogen in units of kelvin is 288 kelvin

The sample of pure nitrogen has a temperature of 15 degree Celsius.

Let's convert the temperature from degree Celsius to kelvin.

K = C + 273

where

Therefore,

K = 15 + 273

K = 15 + 273

K = 288 kelvin

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Answer:

the number off double bonds in a fatty acid chain

The cutoff frequency for a certain element is 1.22 x 1015 Hz this is its

work function in eV that is Work done = 5.05 eV.

Definition of labor function is the power this is wished for a particle to return back from the indoors of a medium and spoil via the surface —used particularly of the photoelectric and thermionic emission of electrons from metals paintings function.

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Answer: Option A, 66.5

Explanation:

So you want to use the heat capacity formula

So, q(heat)=m(mass) * cp (specific heat) * DeltaT (change in temp)

so m=45.8, cp =0.385, q=1172

you dont have the final temp for DeltaT so you have to fill in and divide

1172 = (45.8) * (0.385) * Delta T

1172 = 17.633 * DeltaT (Now divide)

1172/17.633 = Delta T

66.46 = Delta T, rounded you get 66.5 or option A

Answer:

the basic element of organic compounds is carbon and they are called organic because associate with the living organism so the correct answer is

The chemical equation is:

A chemical equation of a reaction is an equation which shows the reactants and products of a reaction using their chemical formulae.

The chemical equation when Lead (II) acetate reacts with sodium hydroxide to produce lead (II) hydroxide and sodium acetate is given below:

Pb(CH₃COO₎₂ + NaOH  ---> Pb(OH)₂ + CH₃COONa

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0.139 moles of plutonium are present in a sample containing 8.4 x 10²² atoms of Pt.

The number of moles of a substance can be calculated using the following expression:

no of moles = no of molecules ÷ 6.02 × 10²³

According to this question, 8.4 × 10²² atoms of plutonium are present in the molecule of plutonium.

no of moles = 8.4 × 10²² = 6.02 × 10²³

no of moles = 1.39 × 10-¹

no of moles = 0.139moles

Therefore, 0.139 moles of plutonium are present in a sample containing 8.4 x 10²² atoms of Pt.

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Answer:

4560 torr

Explanation:

PV = K

4 x 1.5 = k

k = 6

V = k / p

V = 6 / 1

V = 6

atm to torr = 1 to 760

760 x 6 = 4560

Answer:

4560 Torr

Explanation:

Boyle's Law

[tex]\sf P_1 \cdot V_1=P_2 \cdot V_2[/tex]

where:

Given:

Substituting the given values into the formula:

[tex]\implies \sf 1.5 \cdot 4=P_2 \cdot 1[/tex]

[tex]\implies \sf P_2=6\:atm[/tex]

To convert atm to Torr, multiply atm by 760:

[tex]\implies \sf P_2=6\cdot 760=4560\:Torr[/tex]

The number of moles of hydrogen atoms contained in 1 mole of c6h12 is 12.

Hydrogen can be produced from various domestic resources such as fossil fuels, biomass, and the electrolysis of water by electricity. The environmental sustainability and energy efficiency of hydrogen depends on how hydrogen is produced.

Hydrogen is the simplest element. Each hydrogen atom has only one proton. Hydrogen is also the most abundant element in the universe. Stars like the Sun are mainly made of hydrogen. The sun is essentially a giant sphere of hydrogen and helium gas.

Some facts about hydrogen:

Fuel cell vehicles are very similar to traditional gasoline vehicles

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Answer:

0.5

Explanation:

5/10=0.5

The scientific question that can be answered through investigation will be:

"Which of the four types of macromolecules, and in which proportions, are present in the food sample?"

A scientific question is a question that may lead to a hypothesis and help us in. answering (or figuring out) the reason for some observation.

A scientific question simply means a question where a researcher designs a question in order to get an answer to a particular investigation.

According to this question,

Since the researcher wants to know the person responsible for the classroom good mess by determining which macromolecules are present in the mystery food sample, then the question will be "Which of the four types of macromolecules, and in which proportions, are present in the food sample?"

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Answer:

11.8.4 Distillation Columns

Distillation columns present a hazard in that they contain large inventories of flammable boiling liquid, usually under pressure. There are a number of situations which may lead to loss of containment of this liquid.

The conditions of operation of the equipment associated with the distillation column, particularly the reboiler and bottoms pump, are severe, so that failure is more probable.

The reduction of hazard in distillation columns by the limitation of inventory has been discussed above. A distillation column has a large input of heat at the reboiler and a large output at the condenser. If cooling at the condenser is lost, the column may suffer overpressure. It is necessary to protect against this by higher pressure design, relief valves, or HIPS. On the other hand, loss of steam at the reboiler can cause underpressure in the column. On columns operating at or near atmospheric pressure, full vacuum design, vacuum breakers, or inert gas injection is needed for protection. Deposition of flammable materials on packing surfaces has led to many fires on opening of distillation column for maintenance.

Another hazard is overpressure due to heat radiation from fire. Again pressure relief devices are required to provide protection.

The protection of distillation columns is one of the topics treated in detail in codes for pressure relief such as APIRP 521. Likewise, it is one of the principal applications of trip systems.

Another quite different hazard in a distillation column is the ingress of water. The rapid expansion of the water as it flashes to steam can create very damaging overpressures.

Answer: Specific heat capacity is measured in J/g℃.

Explanation:

The specific heat capacity is the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.

Another thing you should know about specific heat capacity is its formula. The formula of specific heat capacity is: C= [tex]\frac{q}{m}[/tex]×ΔT

In the formula, q is the heat gained or lost by the system (measured in joules), m is the mass of the sample in grams, and △T is the temperature's change in ℃.

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