Which molecule in each pair has the greater dipole moment? Give the reason for your choice.
(c) SiF₄ or SF₄

The  14g of impure calcium thiocarbonate reacts with hydrochloric acid 0.01 mole of carbon oxide gas evolved, 10% is the percentage purity.

What is reaction ?

The transformation of one or more reactants into one or more new products is referred to as a chemical reaction. Substances are made of chemical constituents or compounds. The transformation of one or more reactants into one or more new products is referred to as a chemical reaction. Substances are made of chemical constituents or compounds.

What is compound ?

A compound combines one or more additional substances to form a new product. The combination of two substances or elements is equal to the mass ratio for making that product. It is attached firmly, and they have equal in all ways to form a combination. The elements both are bonded together. Each compound has its chemical structure; if it breaks, it can either split into two atoms or molecules or in a single.

Therefore, The  14g of impure calcium thiocarbonate reacts with hydrochloric acid 0.01 mole of carbon oxide gas evolved, 10% is the percentage purity.

Learn more about reaction from the given link.

https://brainly.com/question/16416932

#SPJ1

The actual molecule of SeO2 is a resonance hybrid of the two resonance structures. In the correct resonance structure (B), there is a double bond between each oxygen atom and the selenium atom. This gives SeO2 a resonance hybrid that is the average of the two resonance structures.

Resonance structure is a hypothetical structure which represents the actual bonding in a molecule. It is different from the actual structure but provides a better description of the bonding in the molecule. The correct resonance structures for SeO2 are:

A: It is incorrect as it has an extra double bond.

B: It is the correct resonance structure of SeO2

C: It is incorrect as it has no resonance effect in the molecule.

D: It is incorrect as it has an extra double bond, which is not present in the actual molecule.

In the actual molecule, the Se atom is bonded to two O atoms, and each O atom is bonded to Se by a double bond. Therefore, the actual molecule of SeO2 is a resonance hybrid of the two resonance structures. In the correct resonance structure (B), there is a double bond between each oxygen atom and the selenium atom. This gives SeO2 a resonance hybrid that is the average of the two resonance structures.

To know more about resonance visit-

https://brainly.com/question/33424436

#SPJ11

The two resonance structures for SeO2 (selenium dioxide) depict the different ways the bonds and electrons could be arranged within the molecule. The molecule has a V-shape with Selenium at the center, connected to two Oxygen atoms. The delocalization of pi electrons is shown by two major resonance structures.

The resonance structures for the compound SeO2 (selenium dioxide) are determined by the placement of electrons and bonds within the molecule. A molecule can have multiple possible structures, known as resonance structures, which depict the various ways that bonds and electrons can be arranged.

The molecule SeO2 features a V-shaped molecular geometry, with the Selenium (Se) atom at the center connected to two Oxygen (O) atoms, and has two pairs of lone electrons on Selenium. There are two major resonance structures: one with a double bond between Selenium and one Oxygen atom, and a single bond with the other Oxygen atom, and another with the positions of these bonds reversed. This shows the delocalization of pi electrons.

https://brainly.com/question/33720359

#SPJ11

When sodium reacts with water, hydrogen gas evolves (option C).

A chemical reaction is a reaction that typically involves the breaking or making of interatomic bonds, in which one or more substances are changed into others.

A chemical reaction combines two or more substances called reactants to form new substances called products.

According to this question, sodium (Na) reacts with water (H2O) as follows:

2Na + 2H₂O → 2NaOH + H₂

As observed in the above chemical reaction, sodium metal reacts with water to produce sodium hydroxide and hydrogen gas.

Therefore, it can be said that hydrogen gas is evolved when sodium combines chemically with water.

Learn more about chemical reaction at: https://brainly.com/question/3461108

#SPJ1

Answer:

Putting them somewhere cold because the atoms slow as the temperature decreases

Explanation:

Answer:

Lemon juice is one of the most common(I use this method), as well as cold temperatures

Explanation:

The reason why lemon juice is a common way to perserve fruit, is because the acid in lemons prevents mold growth,

It also, prevents oxygen to affect the surface of the fruit.

Refridoraitng and freezing fruits and veggies also help.

The cold conditions causemost bacteria and mold to die and be incapable of surviving on the foods.

It also slows down the fruit and vegtables chemical proccess which realeases what is called ethylne. This is a enzyme.

This enzyme makes cells "run" their genetic code that begins the ripening process in foods.

So basically, the cold temperatures slows down the production of this enzymem, slowing the riping process.

Hope this helps!

Answer:

it's volume also decrease

Answer:

This answer I think it is Al,F

In a water molecule, the hydrogen atoms are bonded to an oxygen atom by polar covalent bonds while neighboring water molecules are held together by hydrogen bonds.

Water can be defined as a liquid molecule that typically contains two (2) main chemical elements in the ratio of two (2) to one (1) [2:1]. These two (2) chemical elements are:

In a water molecule, two (2) atoms of hydrogen bonds with an atom of oxygen through two (2) covalent bonds.

Additionally, the two (2) atoms of hydrogen are bonded to an oxygen atom by polar covalent bonds while neighboring water molecules are held together by hydrogen bonds.

Read more on water molecules here: https://brainly.com/question/1194576

Answer:

magnesium has a greater charge, there will be greater attraction between delocalised electrons and the positively charged ion.

Explanation:

I did this once and got it right I hope you get it right too

The liquid with the highest vapor pressure is C) hexane (C6H14).

Vapor pressure is a measure of the tendency of a substance to evaporate. Substances with higher vapor pressures will evaporate more quickly than those with lower vapor pressures. Hexane has a higher vapor pressure than the other options because it has weaker intermolecular forces, allowing the molecules to more easily escape into the gas phase.

Water and ethylene glycol both have strong hydrogen bonding, which keeps the molecules more tightly bound together and lowers their vapor pressures. Octane has a longer carbon chain, which also leads to stronger intermolecular forces and a lower vapor pressure. Therefore, hexane has the highest vapor pressure of the options listed.

Learn more about vapor pressure at:

https://brainly.com/question/29640321

#SPJ11

Answer:

There are 6.94x10⁶ C of the negative electric charge contained in the electrons of all the lithium atoms in the container.

Explanation:

We have 3 moles of electrons (e⁻) in 1 mol of Li, so the quantity of negative electric charge is:

\( \frac{3 moles \thinspace e^{-}}{1 mol Li}*24 moles Li*\frac{6.022 \cdot 10^{23} e^{-}}{1 mol \thinspace e^{-}}*\frac{1.60 \cdot 10^{-19} C}{1 e^{-}} = 6.94 \cdot 10^{6} C \)

Therefore, there are 6.94x10⁶ C of the negative electric charge contained in the electrons of all the lithium atoms in the container.

I hope it helps you!          

Answer:

VH2=3×15.0L=45.0L

the thing to remember about reactions that involve gases held under the same condition for pressure and temperature is that the mole ratio that exists between the gaseous compound in the balanced chemical equation is equivalent to a volume ratio

When a system is at equilibrium, the value of ÎSsys is zero, but the surroundings still experience a change in entropy (ÎSsurr) due to the transfer of heat between the system and surroundings. The value of ÎSsurr can be calculated using the formula ÎSsurr = -ÎSsys/T.

When a system is at equilibrium, it means that the rate of the forward and reverse reactions are equal, and there is no net change in the system. At this point, the system and the surroundings are in thermal equilibrium, meaning they are at the same temperature.

In this scenario, the change in entropy of the system (ÎSsys) is equal to zero, as there is no net change in the system. However, the surroundings still experience a change in entropy (ÎSsurr). This is because heat is transferred between the system and surroundings until both reach the same temperature. This transfer of heat results in a change in entropy of the surroundings.

The value of ÎSsurr can be calculated using the formula ÎSsurr = -ÎSsys/T, where T is the temperature at which the system and surroundings are in equilibrium. The negative sign in the equation indicates that the change in entropy of the surroundings is opposite in sign to the change in entropy of the system.

For more such questions on Equilibrium.

https://brainly.com/question/28301450#

#SPJ11

The total liters of the solution can be calculated by adding the liters of solute and liters of solvent, which in this case is 7 liters.

Molarity (M) is a measure of the concentration of a solution, defined as the number of moles of solute per liter of solution. In order to calculate the molarity of a solution, it is necessary to know both the number of moles of solute and the volume of the solution.

Given:

Liters of solute (the substance being dissolved) = 3 L

Liters of solvent (the substance doing the dissolving) = 4 L

To find: Total liters of solution

Total volume of solution = liters of solute + liters of solvent

Total volume of solution = 3 L + 4 L

Total volume of solution = 7 L

Therefore, the total liters of the solution are 7 L.

learn more about molarity here:

https://brainly.com/question/8732513

#SPJ1

Answer:

their correct

Explanation:

your answers are correct

The given reaction N2 (g) + 3H2 (g) à 2NH3 (g) is an example of combination reaction.

As a result, it is a combination reaction.

For more information on combination reaction kindly visit to

https://brainly.com/question/3664113

#SPJ1

The number of helium particles (He) will be 7 and the number of oxygen molecules (O2) will be 3. We can represent them as shown below: Heliox particulate representation containing 10 particles: 7 He | 3 O2

Total pressure of the Heliox mixture: Total pressure of the Heliox mixture is the sum of partial pressures of the gases. Here, partial pressure of helium (He) is 0.75 atm and partial pressure of oxygen (O2) is 0.35 atm. So, the total pressure of the Heliox mixture is 0.75 atm + 0.35 atm = 1.1 atm.(b) Fraction of the molecules in Heliox that are helium: The given heliox mixture contains He at a partial pressure of 0.75 atm and O2 at a partial pressure of 0.35 atm. To find the fraction of molecules that are helium in Heliox, we need to divide the partial pressure of helium by the total pressure of the mixture:Fraction of molecules that are helium in Heliox = Partial pressure of He / Total pressure of the mixture= 0.75 atm / 1.1 atm= 0.68 or 68%.(c) Particulate representation of Heliox containing 10 particles: We know that the heliox mixture contains 75% helium (He) and 25% oxygen (O2) by volume.

So, if we take 10 particles of Heliox, then the number of helium particles (He) will be 7 and the number of oxygen molecules (O2) will be 3. We can represent them as shown below: Heliox particulate representation containing 10 particles:7 He | 3 O2.

To know more about helium particles visit:-

https://brainly.com/question/18332054

#SPJ11

Answer:

B. The rate of mitosis is much greater than the rate of apoptosis

Answer:

Option B

Explanation:

As Brønsted-Lowry theory states, acids are the ones that can donate protons.

When a proton is donated, it is released to become medium more acidic.

HCl is a strong acid.

HCl (l) + H₂O (l)  →  H₃O⁺ (aq) +  Cl⁻(aq)

These always reffers to strong acid where the dissociation is 100% completed.

In a weak acid, dissociation is not 100% complete, that's why we have an equilibrium.

HA (l) + H₂O (l)  ⇄  H₃O⁺ (aq) +  A⁻(aq)                   Ka

Explanation:

Atomic radii is measured using the distance between nucleus of 2 atoms rather than the distance between the nucleus and outermost shell because:

- There is no clear/sharp boundary of the orbital. This is why it is called an electron cloud.

- Also, the exact location of the electron is not known. What is known is the probability of finding the electron there.

Due to this, it is not possible to measure the atomic radii precisely. That's why the distance between the nucleus of two atoms is used.

Answer:

?????????

Explanation:

Polar molecules are more likely to be found in sugar than paraffin. This is due to the fact that sugar molecules are made up of polar molecules like carbon, hydrogen, and oxygen.

Due to the existence of lone pairs of electrons, the oxygen atoms in sugar molecules are particularly polar because they have a partial negative charge. Due to their lone electron, hydrogen atoms also have a little positive charge. These interactions between these polar molecules result in the formation of hydrogen bonds, which give sugar molecules their shape and structure.

Contrarily, the only elements found in paraffin molecules are carbon and hydrogen, both of which are non-polar molecules. As a result, the molecules are unable to interact with one another and create hydrogen bonds. The outcome is Due to their inability to take on the same forms and structures as sugar molecules, paraffin molecules are unlikely to include polar molecules.

Learn more about  polar molecules at:

https://brainly.com/question/15173422

#SPJ1

Answer:

\(4.4*10^{14}\)Hz

Explanation:

The total pressure in the flask measured at 400 K is 1 atm

The correct answer to the question is Option B. 1 atm

From the question given above, the following data were obtained:

Using the ideal gas equation, we can obtain the pressure in the flask as follow:

PV = nRT

P × 1 = 0.03 × 0.082 × 400

Therefore, the total pressure in the flask measured at 400 K is 1 atm

Learn more on ideal gas equation: https://brainly.com/question/4147359

Answer: a: 3 atm

Explanation:

0.03 mol NH4NO3 decomposes into 0.09 mol of gas total, thus we multiply 0.09 by 0.082 and 400K to get our answer of about 3 atm.

Answer:

A decade is 10 years. Therefore you must first multiply ten by five to get 50. After you multiply the 12 months in a year by the 50 years. Your answer should be 600

Explanation:

Answer:its d

Explanation:just took it

Answer:

A mercury barometer is an instrument used to measure atmospheric pressure in a certain location and has a vertical glass tube closed at the top sitting in an open mercury-filled basin at the bottom. Mercury in the tube adjusts until the weight of it balances the atmospheric force exerted on the reservoir.

Three characteristics that make water a good solvent for life are its polarity, high heat capacity, and ability to form hydrogen bonds.

Polarity: Water is a polar molecule, meaning it has a partial positive charge on one end (hydrogen) and a partial negative charge on the other end (oxygen). This polarity allows water molecules to interact with and dissolve other polar substances such as salts, sugars, and many biological molecules.

High heat capacity: Water has a high heat capacity, which means it can absorb and store a significant amount of heat energy without undergoing large temperature changes. This property is crucial for regulating temperature within organisms. When the environment becomes warm, water can absorb heat, preventing sudden temperature spikes and providing a cooling effect.

Hydrogen bonding: Water molecules can form hydrogen bonds with each other. Hydrogen bonds are weak attractions between the positive hydrogen atom of one water molecule and the negative oxygen atom of another water molecule.

Water's ability to regulate an organism's temperature is related to its high heat capacity and the process of evaporative cooling. When an organism sweats or loses water through evaporation, it takes away heat energy from the body.

Overall, water's unique properties as a solvent, its ability to store heat, and its role in temperature regulation make it a vital component for life on Earth.

Learn more about hydrogen bonds -

brainly.com/question/11679211

#SPJ11

Answer:

b. chemical and physical

The statement is FALSE. Non-ferrous metals can be hardened by heat treatment, although the mechanisms and processes involved may differ from ferrous metals.

Heat treatment techniques such as precipitation hardening can be used to increase the strength of non-ferrous metals. Non-ferrous metals are metals or alloys that do not include iron (or iron allotropes, such as ferrite, etc.) in significant quantities. Non-ferrous metals are employed because they have desired qualities like reduced weight (for example, aluminium), greater conductivity (for example, copper), non-magnetic characteristics, or corrosion resistance (for example, zinc), even though they are often more expensive than ferrous metals. In the iron and steel sectors, several non-ferrous materials are also employed. Bauxite, for instance, is used as a flux in blast furnaces, whereas wolframite, pyrolusite, and chromite are utilised to create ferrous alloys.

To know more about Non-ferrous metals

https://brainly.com/question/33291477

#SPJ11

Answer:

(4) 266 moles

Explanation:

We have Dinitrogen Pentoxide N2O5

6.41*10^25 molecules are given

No of Moles of N2O5 = \(\frac{No of Molecules }{Avogadro's Number}\)

                                     = \(\frac{6.41 * 10^25}{6.022*10^23}\)

                                      = 106.5 mol

Now using Unitary Method

2 Mole of Nitrogen pentoxide require 5 mole of Oxygen to form N2O5

1 mole of N = \(\frac{5}{2}*O\)

In 106.5 mole of N  = \(\frac{5}{2}*106.5\) = 266.25 mole

So, 6.41*10^25 molecules of N2O5 will require 266.25 mole of Oxygen atoms.