Phản ứng tương tác của ancol tạo thành este được gọi là

The following terms are required to complete the blanks in the given sentence:

Condensation, sinks, column, condensation nuclei, pollen, cloud, convergence, cooler air masses

Condensation can form as warm moist air rises, expands, and cools, and cooler air sinks in a column. Water vapor in the air condenses on condensation nuclei such as dust or pollen. As more and more droplets collect, a cloud is formed. Clouds also form from convergence where moist air comes in contact with a cooler air masses and rises. Another type of cloud forms when air masses of different temperatures collide.

Condensation is the process of conversion of water vapor into a liquid state or solid state. It is the opposite of evaporation where liquid water changes into a gaseous state. The air cannot hold all the water vapor present in it, so the water droplets stick to the solid objects and condense to form tiny droplets that join together to form clouds.

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Answer:

evaporation, condensation, precipitation, interception, infiltration, percolation, transpiration, runoff, and storage.

Use one of the picture below:

Answer:

the pair of isotopes are b and e

the element with mass no of 19 is C

the element with atomic no 7is D

Explanation:

B and E are isotopes bcos they have the same atomic no, i.e no of protons. They bother have atomic no of 17 BUT have different mass no i.e sum of neutrons and protons.

(b)C is correct because the sum of the protons and neutrons is 19

(c) D because it has 7 protons

The name of the organic compound is 2-methyl pentane. The given organic compound is a five-carbon system with a substitution at the C-2 carbon. The naming of an organic compound is done according to the rules given by IUPAC.

The given organic compound has 5 carbon in its main chain. So It has the root word Pent. Since, all the bonds are single bonds, the organic compound is saturated, hence it has the suffix -ane. Hence the unsubstituted straight chain is pentane.

Numbering is done from right to left, because when the numbering is from right to left, the substituted carbon gets C-2, when it is numbered from left to right, the substituted carbon gets C-4. So the numbering is from the right and the substituted carbon is C-2. The substituent is a single carbon system, a methyl substituent. So the organic compound is named 2-methyl pentane .

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How much energy is required to raise the temperature of 3 kg of aluminum from 18°C to 23°C? Use the table below and this equation: Q=mcΔT

The dry chemical agent that is most effective on deep-seated fires because of the glassy phosphoric acid coating that forms over the combustible surface is called the "Ammonium phosphate-based agent."A fire is an emergency situation that can cause severe damage to life and property.

Several types of fires occur in different environments, such as solid combustibles, flammable liquids, electrical equipment, and special fuels. In some cases, the fire can be extinguished using the water while in other cases, there are specific fire suppression systems to put out the fire. In this scenario, the dry chemical agents are used to extinguish the fire. Dry chemicals, such as Mono-ammonium Phosphate, have excellent knockdown abilities and are appropriate for deep-seated fires. It operates in the atmosphere by coating the fuel and eliminating the flame's heat signature. This dry chemical agent is the most effective because of the glassy phosphoric acid coating that forms over the combustible surface.

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The hydronium ion, H3O+, is a polyatomic ion. very strong base proton acceptor polyatomic ion proton donor unique form of water polyatomic ion proton donor.

A polyatomic ion, often called a molecular ion, is a collection of covalently bound atoms or a metal complex that can be thought of as acting as a single unit and has a net charge that is not zero. Depending on the definition, a polyatomic ion may or may not be referred to as a "molecule".

Protonated water, also referred to as the hydronium ion, can be found in all aqueous acidic solutions. The aqueous cation H3O+, a particular kind of oxonium ion created by protonating water, is known by the name hydronium ion. It is frequently thought of as the positive ion that forms when an Arrhenius acid dissolves in water because Arrhenius acid molecules in solution give a proton to the nearby water molecules.

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Answer:

C. C

Explanation:

Intermediates are species that are neither reactants nor products.

In this reaction;

Reactant = C3H8 and O2

Products = CO2 + H2O

From the options, the only element that is either the reactants nor products is;

C. C

Answer: C

Explanation:

your well wisher

Answer:

I think the answer is distilled water...

Explanation:

The number of electrons in the outermost shell.

Electron is a subatomic particle with a negative electrical charge. In chemistry, electrons play a major role in chemical bonding and reactions. Electrons are found in the outermost shell of an atom and are responsible for the atom's chemical properties. Electrons can be transferred between two atoms, forming a bond and creating a molecule. Electrons also take part in chemical reactions, where they are either lost or gained. In this way, electron transfer is responsible for the formation of chemical compounds. Electron transfer is also responsible for the release of energy during chemical reactions; this energy can be used for a variety of purposes, such as powering electrical devices. Electrons are also responsible for the conductivity of metals, which allows them to be used in electrical circuits. Electrons in chemical reactions can also be used to break down complex molecules and to form new ones.

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Answer:

If fluorine were to react with an element such as sodium, fluorine will recieve the all of sodium's valence electrons (1). This means both elements will fulfil the octet rule; valence electrons shells are full.

Explanation:

Electrons are transferred because of the difference in electronegativity

Fluorine = 3.98

Sodium = 0.93

3.98 - 0.93 = 3.05

Δ Electronegativity = 3.05

This falls in the range of 2.0 - 4.0 which means the bond is an ionic bond. In an ionic bond, all valence electrons of the metal (sodium, in this case) are transferred to the non-metal (fluorine, in this case).

Fluorine has 7 valence electrons. when it reacts with an element such as sodium the fluorine will accept one electron from sodium and complete its octave after attending 8 electrons in the outermost shell and attend negative charge.

The octave rule is that every element which is electron deficient will have to obtain 8 electron into it valance shell to become stable according to the rule.

flourine is the electron deficient compound and sodium has an extra electron in its outermost shell and most electronegative element of the periodic table and accepts the electron from the sodium to become stable to follow the octave rule.

Therefore, fluorine has 7 valence electrons. when it reacts with an element such as sodium the fluorine will  accept one electron from sodium and complete its octave after attending 8 electrons in the outermost shell and attend negative charge.

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Alkynes react in two ways: addition to the triple bond and substitution through the acetylenic anion.


1. Addition reaction to the triple bond: Alkynes can undergo addition reactions where atoms or groups of atoms add to the triple bond, forming a single bond. For example, hydrogenation of alkynes with hydrogen gas (H2) and a metal catalyst can produce an alkane.

2. Substitution reaction through the acetylenic anion: Alkynes can also undergo substitution reactions, where a functional group replaces another atom or group of atoms in the molecule. In the case of alkynes, the acetylenic anion (-C≡C:^-) can be substituted with other groups. For example, the acetylenic anion can react with an alkyl halide to form an alkene.

Overall, alkynes exhibit both addition and substitution reactions, providing them with diverse reactivity compared to alkenes.

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Answer:

480 g of oxygen.

Explanation:

C3H8 + 5O2 --->  3CO2 + 4H2O

Using the molar masses:

3*12 + 6*16 g of CO2 were formed from 10*16 g O2

132g  g CO2 from 160 g O2

1g CO2 from (160/132) g O2

396 g from (160/132) * 396

= 480 g of oxygen.

Answer:

\(MgO _{(s)} + 2H {}^{ + } _{(aq)} = Mg {}^{2 + } _{(aq)}+ H _{2} O _{(l)} \\ \)

Answer:

only the Fe is unbalance

Explanation:

in the left they has :

Fe = 2

O = 6

C = 3

in the right they has :

Fe = 1

C = 3

O = 6

It emphasizes that un-electrified regions have been left behind by international advances in technology. Option A.

A central idea is the central unifying element of a story that ties together all other elements of fiction that the author uses to tell the story. The central idea is best described as the dominant impression or universal, prevalent truth found in the narrative: renewable energy sources such as wind, water, solar and geothermal.

The refrigerator or freezer may be out of power. The phone line goes down and the phone signal is lost. When the battery gets low, the phone becomes useless as there is no backup charging option. The gas central heating doesn't work and the tap stops pumping clean water quickly. Sustainable energy comes from resources that can sustain continuous operation without jeopardizing the energy needs or climate of future generations.

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Answer: m mm

/lk ac

Explanation:

One way to reduce the gassiness which is associated with eating legumes is to soak them in water overnight before cooking.

Soaking helps to remove some of the indigestible sugars and oligosaccharides present in legumes, which are the primary cause of flatulence. It is also important to change the soaking water at least once to remove any of the water-soluble compounds that are responsible for causing gas.

Additionally, adding herbs and spices like cumin, fennel, ginger, and asafoetida to the cooking process may also help to reduce flatulence. Finally, slowly increasing the amount of legumes in the diet over time can also help to reduce gas, as the body gradually adjusts to the increased fiber and oligosaccharide intake.

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To calculate the mass of the product formed in the reaction between iron and sulfur, we need to determine the limiting reactant first. the mass of the product formed (FeS) in the reaction between 7.62 g of Fe and 8.67 g of S is approximately 11.98 g.

The limiting reactant is the one that is completely consumed and determines the maximum amount of product that can be formed. Calculate the molar mass of iron (Fe) and sulfur (S): Molar mass of Fe = 55.85 g/mol Molar mass of S = 32.07 g/mol Calculate the number of moles of Fe and S: Moles of Fe = mass of Fe / molar mass of Fe = 7.62 g / 55.85 g/mol = 0.1363 mol. Moles of S = mass of S / molar mass of S = 8.67 g / 32.07 g/mol = 0.2703 mol. Determine the limiting reactant: To find the limiting reactant, we compare the mole ratio of Fe and S based on the balanced chemical equation for the reaction. Since the reaction is not provided, we assume it to be the synthesis reaction: Fe + S -> FeS From the balanced equation, we can see that the mole ratio of Fe to S is 1:1. Therefore, the reactant with the lower number of moles (Fe) is the limiting reactant. Calculate the mass of the product formed: The molar mass of FeS (iron sulfide) can be calculated as follows: Molar mass of FeS = Molar mass of Fe + Molar mass of S

= 55.85 g/mol + 32.07 g/mol

= 87.92 g/mol Since the mole ratio of Fe to FeS is 1:1, the number of moles of FeS formed is equal to the number of moles of Fe: Moles of FeS = Moles of Fe

= 0.1363 mol Finally, calculate the mass of FeS formed: Mass of FeS = Moles of FeS x Molar mass of FeS

= 0.1363 mol x 87.92 g/mol

= 11.98 g

Therefore, the mass of the product formed (FeS) in the reaction between 7.62 g of Fe and 8.67 g of S is approximately 11.98 g.

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The result of the procedure is that the copper strip should go through oxidation.

The copper strip should be considered as the anode and the nail should be considered as the cathode.

The anode is the electrode of an electrochemical cell at which oxidation occurs. The anode should be + while the cathode should be negative. Both should be placed in the tank that should be filled with the electrolyte solution.

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The chemical change producing a solid would be \(2AgNO_3(aq) + CaBr_2(aq) --- > 2AgBr(s) + Ca(NO_3)_2(aq)\)

They are reactions involving two soluble salts with one of the products being an insoluble salt.

In the reaction below: \(2AgNO_3(aq) + CaBr_2(aq) --- > 2AgBr(s) + Ca(NO_3)_2(aq)\)

\(AgNO_3\) and \(CaBr_2\) are soluble salts while \(AgBr\) produced is an insoluble salt. The insoluble salt is a solid.

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Answer: 2AgNO3(aq)+CaBr2(aq)—>2AgBr(s)+Ca(NO3)2(aq)

Explanation:

just did on apex; 2AgNO3(aq)+CaBr2(aq)>2AgBr(s)+Ca(NO3)2(aq)

Answer:

c. Hfus is always negative.

Explanation:

Because energy is released when fusing solids

Answer: Conduction

Explanation:

Answer:

who's asking?

Explanation:

Answer:

here's a great idea!

take a jug of water by finding the volume of that water and ask the 2 year old to chug it all in... the volume of water drank by the 2 year old is the volume of the two year old

Answer:

Explanation:

A perfect diamond is a single molecule made of carbon atoms.

DNA is a super long molecule that has information uniquely describing every human being.

When two or more atoms chemically bond together, they form a molecule.

They are very small in size.

They have space between them.

They are in constant random motion.

molecules move when Particles move rapidly in all directions but collide with each other more frequently than in gases due to shorter distances between particles.

In 1926, French physicist Jean Perrin received the Nobel Prize in physics for proving, conclusively, the existence of molecules.

Molecules can exist in free state because they are very stable.

The smallest particle of a compound capable of existing on its own is a Molecule-not a atom.

Answer:

Ice: solid and rigid. Water: Liquid and sloshy Gas: light and not dense.

Explanation:

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