What is the name???????

The concentration of H₂SO₃ solution is equal to 0.123 M.

A neutralization reaction is described as a reaction in which an acid and base react to form salt and water. When a strong acid will react with a base then the salt which is formed can be neither acidic nor basic.

When H₂SO₃ (a strong acid) reacts with KOH, the resulting salt is K₂SO₃  and water.

H₂SO₃  +  2KOH   →   K₂SO₃  +   2H₂O

Given, the concentration of KOH = 0.235 M

The volume of the KOH = 65.25 ml = 0.06525 L

The number of moles of KOH, n = M × V = 0.235 × 0.06525 = 0.0153 M

The volume of the  H₂SO₃ = 62.4 ml = 0.0624 L

The number of moles of  H₂SO₃, n = 0.0153/2 = 0.00767 mol

The concentration of H₂SO₃ =0.00767/0.0624 = 0.123 M

Therefore, the molarity of  H₂SO₃ is 0.123 M.

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Answer:

I think it's the second option

Explanation:

I'm just taking a stab in the dark here, so to speak

Answer:

Explanation:

1)  0.0728 x (28.086 g Si/ 1mole Si) =2.04 g Si

2) 5.5 mol H20 x (18g H20/1mole H20) = 99 g H2O

3) 0.0728 moles Ca(H2PO4)2 x ( 234 g/ 1mole) = 17.04 g Ca(H2PO4)2

Answer:

I need the answer choices to answer properly but

Explanation:

the proper set of quantum numbers is (n) (I) (mı) and (ms) <----- s supposed to b smaller than the m

Answer:

n = 3, l = 3, m = 3

CORRECT ANSWER!!

Explanation:

The electronic configuration of organic compounds depends on the orbitals of their atoms and molecules.

The expression 'electronic configuration' makes reference to the spacial arrangement of electrons in distinct energy orbitals of an atom/molecule.

The orbitals are designed with numbers and letters, whereas the amount of electrons in each orbital is expressed as superscripts (e.g., 1s² 2s² 2p² in the C atom that form glucose).

In conclusion, electronic configuration of organic compounds depends on the orbitals of their atoms and molecules.

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Answer:

I think it’s chlorine (Cl)

Explanation:

I’m literally doing the same question right now

The equation C2H4(g) + H2(g) + C2H6(g) → Caco3(s) + Cao(s) + CO2(g) shows an increase in entropy due to the formation of a gas as a product. Option A

In this equation, the reactants on the left-hand side consist of gases (C2H4 and H2), while the products on the right-hand side include a solid (Caco3) and a gas (CO2).

When a reaction involves a change from gaseous to solid or liquid states, there is typically a decrease in entropy because the particles become more ordered and constrained in the solid or liquid phase.

Conversely, when a reaction involves the formation of gases, there is generally an increase in entropy because gases have higher degrees of molecular motion and greater freedom of movement compared to solids or liquids.

In the given equation, the reactants include three gaseous compounds (C2H4, H2, and C2H6), and one of the products is a gas (CO2). Therefore, the overall entropy of the system increases during this reaction.

The equation Fe(s) + S(s) → FeS(s) does not show an increase in entropy. Both the reactants (Fe and S) and the product (FeS) are solids. Since solids have lower entropy compared to gases or liquids, the entropy of the system does not increase in this reaction. Option A

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Answer:A

Explanation:

1. \(^{222}Rn_{86}\) → \(^{218}Po_{84} + ^{4}He_{2}\)

What is a spontaneous decay?

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Answer:

there is two mixture homogeneous and heterogeneous mixture

ok

The asbestos exposure during the years 1982 and 1983 was 2.5 fibers per cubic centimeter and 0.8 fibers per cubic centimeter respectively. So asbestos exposure decreased by 1.7 fibers per cubic centimeter during the year 1983.

Breathlessness Persistent, dry cough Chest pain or tightness Lack of a dry, crackling sound in the lungs when you breathe in Wider and rounder fingers and toes are some of the symptoms of asbestos exposure.

The largest group of people exposed to asbestos is those working in the construction industry. Historically, asbestos was also used by pipe fitters and shipyard workers. In addition, asbestos was used by military personnel, auto mechanics, and many other occupations.

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Answer: Heyo Kenji Here! Here's your answer- In a fat molecule, the fatty acids are attached to each of the three carbons of the glycerol molecule with an ester bond through the oxygen atom. During the ester bond formation, three molecules are released. Since fats consist of three fatty acids and a glycerol, they are also called triacylglycerols or triglycerides.

Explanation: Hope this helps!

Have a nice day!

- Kenji ^^

Answer:

As Earth rotates on its axis, the different locations on Earth change position in relation to the Sun. A city on Earth that faces toward the Sun at noon will rotate to face away from the Sun 12 hours later. The positions of Earth and the Sun over the course of a 24-hour rotation cause sunrise, sunset, day, and night.

Answer:

The Earth's rotation affects the direction sunlight rises and sets by the Earth's rotation on its axis.

Explanation:

It makes one complete turn every 24 hours. it turns towards east. As the Earth rotates toward east, it looks like the sun is moving west.

Answer:

A: The reaction is exothermic

C: The equation shows that 891 kJ of energy are released as a product.

E: The graph shows that the reactants have greater potential energy than the products.

Explanation:

The statement about the reaction is true:

A: The reaction is exothermic

C: The equation shows that 891 kJ of energy is released as a product.

E: The graph shows that the reactants have greater potential energy than the products.

Potential energy is the energy that is saved in the body. It is used in the work and when convert into kinetic energy.

A moving item fundamentally possesses kinetic energy. Kinetic energy would therefore be created as a result of an object moving or an elastic band being released since the released object exhibits motion.

Therefore, the correct option is A: The reaction is exothermic, C: The equation shows that 891 kJ of energy is released as a product, and E: The graph shows that the reactants have greater potential energy than the products.

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Answer:

delocalised electrons

Explanation:

they are called delocalised electrons because that can move freely in the molecule

Answer:

The R-O-R Chain

Explanation:

Please give me brainliest! Im so sorry if this is incorrect I really tried... -_- ;-;

Answer:

A mixture of ethane and ethene occupies 40 litre at 1.00 atm and at 400 K.The mixture reacts completely with 130 g of O2 to produce CO2 and H2O . Assuming ...

Missing: 32 ‎Br2

The following are categorized into polar or nonpolar molecules:

a) Beryllium chloride (BeCl₂) is a nonpolar molecule. The Be-Cl bond is polar due to the electronegativity difference between beryllium and chlorine, but the molecule is linear with the two polar bonds pointing in opposite directions, resulting in a net dipole moment of zero.

b) Hydrogen sulphide (H₂S) is a polar molecule. The H-S bond is polar due to the electronegativity difference between hydrogen and sulfur, and the molecule has a bent shape, resulting in a net dipole moment that is not zero.

c) Sulphur trioxide (SO₃) is a nonpolar molecule. The S-O bonds are polar due to the electronegativity difference between sulfur and oxygen, but the molecule is trigonal planar with the three polar bonds pointing in different directions, resulting in a net dipole moment of zero.

d) Water (H₂O) is a polar molecule. The H-O bond is polar due to the electronegativity difference between hydrogen and oxygen, and the molecule has a bent shape, resulting in a net dipole moment that is not zero.

e) Trichloromethane (CHCl₃) is a polar molecule. The C-Cl bonds are polar due to the electronegativity difference between carbon and chlorine, and the molecule has a tetrahedral shape, resulting in a net dipole moment that is not zero.

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Answer:

To find the number of atoms in 1.525 moles of potassium, you can use the formula:

Number of atoms = Number of moles * Avogadro's number

Avogadro's number is a constant that is equal to 6.022 x 10^23 atoms/mole. Plugging in the values for the number of moles and Avogadro's number, you get:

Number of atoms = 1.525 moles * (6.022 x 10^23 atoms/mole)

= 9.149 x 10^23 atoms

Therefore, there are approximately 9.149 x 10^23 atoms of potassium in 1.525 moles of potassium.

According to Avogadro's number there are 9.18×10²³ atoms of potassium  which  make up 1.525 moles of potassium.

Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present in the sample.

It has a SI unit of reciprocal mole whose numeric value is expressed in reciprocal mole which is a dimensionless number and is called as Avogadro's constant.It relates the volume of a substance with it's average volume occupied by one of it's particles .

Number of atoms can be calculated using Avogadro's number as follows: mass/molar mass×Avogadro's number

In the given question number of atoms =number of moles×Avogadro's number=1.525×6.023×10²³=9.18×10²³ atoms .

Thus ,there are 9.18×10²³ atoms of potassium  which  make up 1.525 moles of potassium.

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Explanation:

Many meteorites have iron or nickel in them, so they are heavier (and denser) than Earth rocks. Some meteorites have pits (regmaglypts) on the outside, which look like deep thumbprints. Meteorites are not bubbly, and do not have holes. Meteorite are usually not round.

The outer core is the layer of Earth creates a magnetic field and shields us from the Sun's destructive solar wind.

It is called a magnetic field to a space in which magnetic phenomena take place due to the influence of a body with properties of electric charges.

The earth's magnetic field is mainly produced by the electric currents that occur in the outer core, liquid in nature, which is composed of highly conductive cast iron.

As the center of the Earth cools, part of the iron contained in the fluid outer core solidifies and becomes part of the inner core.

The outer core changes its chemical composition and becomes less dense, generating convective currents.

This process, together with the Coriolis effect (product of the Earth's rotation) generates strong helical convection currents that align with the axis of rotation.

The Earth is mostly protected from the solar wind, a stream of energetic charged particles emanating from the Sun, by its magnetic field, which deflects most of the charged particles.

These particles would destroy the ozone layer, which protects the Earth from harmful ultraviolet rays.

Therefore, we can conclude that the outer core is the layer of Earth creates a magnetic field and shields us from the Sun's destructive solar wind.

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Answer:

false

Explanation:

The metric system is used in all but 3 countries in the world

Answer:

A. non fiction or a ajami to download

Miscible liquids are separated via a kind of distillation called fractional distillation. he mixture is typically divided into component parts after a series of distillations and condensations.

Miscible liquids are separated via a kind of distillation called fractional distillation. The mixture is typically divided into component parts after a series of distillations and condensations. When the combination is heated to a specific temperature where some of the mixture begins to vaporise, the separation takes place.

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Answer:

Two vectors are equal if they have the same magnitude and the same direction. Just like scalars which can have positive or negative values, vectors can also be positive or negative. A negative vector is a vector which points in the direction opposite to the reference positive direction.

First an acid catalyst must be used because alcohol is a weak nucleophile and second, the water produced with the acetal must be removed.

Acetals are geminal dietary derivatives of aldehydes or ketones, formed by reaction with two equivalents (or an excess amount) of an alcohol. Ethyl alcohol will attack on the carbonyl carbon followed by acid hydrolysis. This will lead to the formation of acetals. One way to draw the mechanism of formation under acidic conditions is protonation of the aldehyde/ketone oxygen with acid The formation of an acetal occurs when the hydroxyl group of a hemiacetal is protonated and lost as water. The carbocation that is produced is quickly attacked by an alcohol molecule. Loss of the proton from the bound alcohol gives the acetal. Acetals are geminal dietary derivatives of aldehydes or ketones, formed by reaction with two equivalents or an excess amount of an alcohol and removal of water. Ketone derivatives of this type were once called ketals, but modern usage has dropped that term.

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The partial pressure of N₂ in the mixture containing He, Ar with a total pressure of 21 atm is 11,746 torr.

It is given that the mixture contains He with a partial pressure of 2427 torrs, Ar with 1787torres (1mmHg = 1 torr) and the total partial pressure is given by 21 atm (1atm = 760torr) which is 15960 torr.

To find the partial pressure of N₂, by using Dalton's atomic theory,

P total = Partial pressure of Ar + Partial pressure of He + Partial pressure of N₂

15960 = 1787 + 2427 + Partial pressure of N₂

Partial pressure of N₂ = 15960 - 4214

Partial pressure of N₂ = 11,746 torr

Therefore, the partial pressure of N₂ is 11,746 torr.

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At constant temperature and volume, more I2 is added to the above equilibrium. A new state of equilibrium results from a shift to the:

Left with a net decrease in [H2].

Hence, Option A is correct .

What do you mean by equilibrium in chemistry?

Chemical equilibrium, can be defined as the reversible chemical reaction in which there is  no net change in the amounts of reactants and products. Types of chemical equilibrium are  Homogeneous Equilibrium and Heterogeneous Equilibrium

It plays a important role in chemical reaction

Rate of forward reaction =  Rate of backward reaction.

Hence , At constant temperature and volume, more I2 is added to the above equilibrium. A new state of equilibrium results from a shift to the:

Left with a net decrease in [H2].

Hence, Option A is correct .

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