Why is water able to easily dissolve ionic compounds?(1 point)

The electron transfer in ionic compounds results in ions that are attracted to water’s poles.

The bonds between water molecules are easily broken by the strong ions of ionic compounds.

The opposite charges of ionic compounds repel each other, so water molecules can separate the ions.

The poles of water molecules share electrons with the ions in ionic compounds.

Answer:

What are you talking abt

Explanation:

The ratio of the concentrations at equilibrium is as follows:

Chemical equilibrium is the point in a chemical reaction where both the forward and backward processes are occurring at the same rate.

The concentrations of the reactants and products are constant at equilibrium because the forward and reverse speeds are equal.

Considering the given statements based on the reaction equilibrium concentrations, the correct options are:

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Answer:

b 32

Explanation:

Answer:

B

Explanation:

A tissue is a group of many similar cells (though sometimes composed of a few related types) that work together to perform a specific function. An organ is an anatomically distinct structure of the body composed of two or more tissue types. Each organ performs one or more specific physiological functions.

Answer:

Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.

Explanation:

Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.

If the reaction producing KCl from its elements goes essentially to completion, it is likely that the reaction is thermodynamically favorable. This means that the reaction will proceed spontaneously and release energy as it occurs.

Thermodynamic favorability is determined by the change in the enthalpy (heat) and the change in the entropy (disorder) of the system. If the change in enthalpy is negative (exothermic) and the change in entropy is positive (increase in disorder), the reaction is likely to be thermodynamically favorable.

In general, reactions that are thermodynamically favorable are more likely to occur spontaneously and go to completion, while reactions that are thermodynamically unfavorable are less likely to occur spontaneously and may not go to completion. However, other factors, such as the presence of catalysts or the rate at which the reaction occurs, can also affect the likelihood of a reaction occurring.

If the reaction producing KCl from its elements goes essentially to completion, it is likely that the reaction is thermodynamically favorable. This means that the reaction will proceed spontaneously and release energy as it occurs.

Thermodynamic favorability is determined by the change in the enthalpy (heat) and the change in the entropy (disorder) of the system. If the change in enthalpy is negative (exothermic) and the change in entropy is positive (increase in disorder), the reaction is likely to be thermodynamically favorable.

In general, reactions that are thermodynamically favorable are more likely to occur spontaneously and go to completion, while reactions that are thermodynamically unfavorable are less likely to occur spontaneously and may not go to completion. However, other factors, such as the presence of catalysts or the rate at which the reaction occurs, can also affect the likelihood of a reaction occurring.

The statement is true that a molecule is composed of several functional groups.

A molecule is a group of two or more atoms held together by chemical bonds. Atoms can form chemical bonds by sharing electrons with other atoms, leading to the formation of stable molecules with unique chemical and physical properties. Molecules can be made up of atoms of the same element or different elements, and they can vary widely in size and complexity. In biology, many important molecules are made up of carbon, hydrogen, oxygen, nitrogen, and other elements, and they play critical roles in biological processes such as metabolism, cellular signaling, and genetic information storage and transmission. Examples of important biological molecules include DNA, RNA, proteins, carbohydrates, lipids, and many others. These molecules are responsible for carrying out the various functions of cells and organisms and are critical for life as we know it.

Here,

Many molecules in biology are composed of several functional groups, which are specific atoms or groups of atoms within the molecule that give it its chemical properties and reactivity. Examples of common functional groups in biological molecules include amino (-NH2), carboxyl (-COOH), hydroxyl (-OH), phosphate (-PO4), and methyl (-CH3) groups, among others. The presence of these functional groups can determine how a molecule interacts with other molecules in the cell and can influence its function and activity.

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B. cryolite substance produces sulfur dioxide when roasted in air.

Cryolite (Na3AlF6, sodium hexafluoroaluminate) is an uncommon mineral identified with the once-large deposit at Ivittuut on the west coast of Greenland, mined commercially until 1987.

Sulfur dioxide (SO2) is a gaseous air pollutant composed of sulfur and oxygen. SO2 forms when sulfur-containing fuel such as coal, oil, or diesel is burned. Sulfur dioxide also converts in the atmosphere to sulfates, a major part of fine particle pollution in the eastern U.S.

Sulfur dioxide (SO2), a colorless, bad-smelling, toxic gas, is part of a larger group of chemicals referred to as sulfur oxides (SOx). These gases, especially SO2, are emitted by the burning of fossil fuels — coal, oil, and diesel — or other materials that contain sulfur.

Although its chief uses are in the preparation of sulfuric acid, sulfur trioxide, and sulfites, sulfur dioxide also is used as a disinfectant, a refrigerant, a reducing agent, a bleach, and a food preservative, especially in dried fruits.

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A chemist determines that a substance is composed of 30.4% nitrogen by mass and 69.6% oxygen by mass. The molar mass of the compound is 230.5 g/mol, the molecular formula is NO₂.

We must compute the empirical formula in order to ascertain the compound's chemical composition.

If we have 100 grams of the compound.

This suggests we have:

30.4 g of nitrogen

69.6 g of oxygen

Now, we have to convert the mass of each element to moles.

The molar mass of nitrogen (N) = 14.01 g/mol

the molar mass of oxygen (O)  =  16.00 g/mol.

Number of moles of nitrogen (N):

2.17 mol

Number of moles of oxygen (O):

4.35 mol

The simplest whole-number ratio between the moles of nitrogen and oxygen must now be determined. To calculate the ratio, we divide both numbers by the smaller value.

Moles N / moles O = 2.17 mol / 2.17 mol = 1.00

Moles O / moles O = 4.35 mol / 2.17 mol = 2.00

The ratio is approximately N₁O₂.

We divide the subscripts by their greatest common divisor to obtain the simplest ratio, since we are looking for the empirical formula. The empirical formula is NO₂ since the greatest common divisor in this situation is 1.

The molecular formula of the compound is NO₂.

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Answer:

One can draw the 3-dimensional structure of an atom once they have the Lewis Structure of an atom. The 3-dimensional geometrical structure of ammonium, NH4+ is referred to as Tetrahedral. ... But the + sign decrees that NH4+ has 8 valence shell electrons, due to the positive ion.

Explanation:

Answer:

V=24,3mL

Explanation:

1)n(AgNO3)=Cm*V=0.063l*0.192M=0.012

2)n(AgNO3)/2=n(MgCl2) => MgCl2=0.012/2=0.006

3)V(MgCl2)=n/Cm=0.006/0.247=0.0243L=24,3ml

Once hot air cools, it sinks to the earth's surface, here it is warmed by the ocean before rising back. This is known as a convection current.

Differential heating usually creates convection currents. Warmer (less dense) material rises, and cooler (more dense) material sinks.

The above movement is responsible for the formation of circulation patterns known as convection currents in the Earth's atmosphere, water, and mantle.

Convection currents in the Earth's mantle are thought to be the driving force behind tectonic plate movement.

Thus, convection current occurs when the air cools and begins to sink.

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0.1535g is the mass of the air contained in the flask.

A substance's density is defined as its mass per unit of volume. Density is most frequently represented by the symbol, however Latin letter D may also be used. Mass divided by volume is the formula for density in mathematics: ρ = M/V. where m is the mass, V is the volume, and ρ is the density.

The given are:

1.      Mass = ?

2.     Density = 1.228 g/L

3.      Volume = 125mL to L

Plugging in the values we get,

ρ = M/V

1.228 = M/ 0.125

M = 0.1535g

Therefore, 0.1535g is the mass of the air contained in the flask.

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Within 5 years the kinetic energy needed for the phase change of methane is increased by some factors. Hence, the arrow for change in kinetic energy for the phase change can be used here.

The phase change of a substance is the change from one state or phase to the other such as from solid to liquid, liquid to vapor etc. The minimum energy needed to overcome the barrier potential for a physical and chemical change is called its activation energy or activation potential.

A substance need kinetic energy to move apart its molecules which are strongly connected in liquid phase to convert it into vapor phase. If the activation potential increases, the substance need more kinetic energy.

Here, if the kinetic energy needed for the phase change of liquid methane increases. That is the reason why liquid methane in Titan not evaporated for some years.

Here the actual change in kinetic energy is increasing, thus, the methane gas is needed to gain more energy to evaporate. Hence, you have to add the first arrows given in the data.

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The true statement is that the metal expands, causing increase in volume which consequently causes the density to decrease slightly.

The density of a substance depends on its mass and its volume. Copper is a metallic substance. We usually define the density of a substance as the ratio of mass to volume.

This means that, as the volume of a substance increases or decreases, the density of the substance is affected.

Having said that, we need to be reminded that the mass of the substance does not change when the metal is heated but the metal may increase in volume (expand) when heated or decrease in volume(contract) when cooled.

When a metal expands, its density decreases. As we can see, the density of copper decreased from 8.94 g/cm 3 at 20°C to 8.91 g/cm 3 at 60°C.

So, the following are true or false;

The metal expands - True

The metal contracts - False

The mass of the metal increases - False

The mass of the metal decreases - False

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a. 7.623 × 10⁵ nm is expressed as 762300nm

b. 5.34 × 10⁻³ L is expressed as 0.00534

Following numerals are explain below:

A numeral is a name or symbol that represents a certain number. Examples include the numerals three, four, and twelve. So, the numeral is how we express the number, which is a concept. Reason: A numeral is a word that describes a number, whereas a number is conveyed via digits.

c. 5.453 × 10⁶ m is expressed as 5453000

d. 6.791 × 10⁻⁵pm is expressed as 6791m

e. 2.4 × 10⁹pg is expressed as 2400000000

f. 3.65 × 10⁵ is expressed as 365000

g. 3.4287 × 10⁻⁶L is expressed as 0.0000034287

h. 9.2 × 10²mL is expressed as 920L

i. 6.927 × 10⁴  is expressed as 69270m

j. 9.23 × 10⁻³ is expressed as 0.00923

Thus, a. 7.623 × 10⁵ nm is expressed as 762300nm.

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Braxtons dog eats 3 times more than Abbys

Answer:

Braxton's dog eats 3 times more food.

Explanation:

According to the Bronsted-Lowry concept of acids and bases, the statement "If a base is strong, then its conjugate acid will be relatively weaker" is NOT true.

The Bronsted-Lowry concept defines an acid as a proton (H+) donor and a base as a proton acceptor. The strength of an acid or base is determined by the extent to which it is willing to donate or accept a proton. Therefore, when a strong acid donates a proton, the resulting conjugate base is also strong; likewise, when a strong base accepts a proton, the resulting conjugate acid is also strong.
Other characteristics of bases include the presence of a hydroxide group (OH-), and the ability to accept a proton (H+) to form a salt. However, the strength of a base does not necessarily depend on its presence or absence of a hydroxide group.
In conclusion, the Bronsted-Lowry concept of acids and bases states that the strength of a base does not determine the strength of its conjugate acid; therefore, the statement "If a base is strong, then its conjugate acid will be relatively weaker" is NOT true.

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Answer:

proton :

a particale or atom containing a postive charge

nuutron

a particale or atom that contains a negative charge

electron :

a particale or atom with a negative chrage.

Explanation:

proton:

a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.

nuetron:

a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

elcetron:

a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

Answer:

4366.8 grams or 4.4 kg

Explanation:

Density = Mass / Volume

Mass = Density x Volume

M = 6.7 x 6.8 x 4.3 x 22.29

M = 4366.8 g

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Answer:

The general preparation of esters( for example ethyl ethanoate) is through a process known as ESTERIFICATION.

Explanation:

The formation of an ester by the reaction between an alkanol and an acid is known as esterification. This reaction is extremely slow and reversible at room temperature, and is catalyzed by a high concentration of hydrogen ions.

In the preparation of one of the simpler esters known as ETHYL ETHANOATE the reactants include ethanol(an alcohol) and glacial ethanoic acid(a carboxylic acid) in the presence of concentrated tetraoxosulphate VI acid as a CATALYST. Note that, a catalyst is any substance that is able to increase the rate of a chemical reaction.

The mixture is warmed in a water bath( hot but not boiling) for about 25 minutes. The mixture is poured into a beaker partially filled with a sodium or calcium chloride to remove interacted ethanol. The ethyl ETHANOATE floats on the mixture as oily globules.

Answer:

????

Explanation:

where's the question

The ratio of ions in the given ionic compound, 2 Na₃PO₄ is 6 : 2.

Ions are substances formed when atoms of elements gain or lose or lose electrons.

In some instances, the group of atoms may come together and react as one unit and these are called radicals.

Ionic compounds are formed when two oppositely charged ions are held together by electrostatic forces of attraction.

The ions in the given ionic compound, 2 moles of Na₃PO₄, are as follows;

2 * 3 moles of Na⁺ = 6 moles

2 * 1 mole of PO₄ = 2 moles

The ratio of ions = 6 : 2

The ratio of ions = 3 : 1

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Answer:

Hydrogen bonding

Explanation:

Hydrogen bonding is the strongest intermolecular force in water, giving water many of its characteristics and acting to pull water molecules closer to each other.

I hope this helps!

Answer:

Sodium hydroxide reacts with iron(III) chloride to produce iron(III) hydroxide and sodium chloride.

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The area of the surface with sides 500mm and 14.35mm is 7175mm^2

We know that the expression for area of flat rectangular surface is given as

Area = Length* Width

Substituting our given data into the expression we have

Area = 500*14.35

Area = 7175mm^2

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In this letter, express gratitude to your uncle, a university professor, for his invitation and congratulate him on his achievements.

Here are the steps to be followed:

By following these steps, you can write a thoughtful and appreciative letter to your uncle, expressing your gratitude for his invitation and congratulating him on his achievements.

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Answer:  The statement 'At equilibrium, the rate of the forward reaction is the same as the rate of the reverse reaction' best describes general equilibrium.

Explanation:

A chemical process in which the rate of forward reaction is equal to the rate of backward reaction.

For example, \(A + B \rightleftharpoons C + D\)

This reaction is an equilibrium process. Symbol which represents the equilibrium is '\(\rightleftharpoons\)'.

Thus, we can conclude that the statement 'At equilibrium, the rate of the forward reaction is the same as the rate of the reverse reaction' best describes general equilibrium.

The way that the two desalination processes differ from the atmospheric water generator is that:

The Processes for desalinating water is one that tends to remove dissolved salts and other forms of minerals. Seawater, brackish water, wells, surface water (rivers as well as streams), wastewater, as well as industrial feed and process waters are all potential sources of feedwater.

Pressure is one of the driving forces needed for membrane separation (applied as well as vapor).

Desalination is the process of removing extra salt or other minerals from water, such as seawater, in order to create freshwater fit for drinking or irrigation.

Note that it is seen as reverse osmosis using semipermeable membranes and/or a lot of stage of flash distillation are two possible processes in the desalination process.

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The non-metal elements in Group 7 – known as the halogens – get less reactive as you go down the group

Answer & Explanation:

The reactivity of elements in Group VII, also known as Group 17, decreases with increasing atomic radius. This is because halogens have high electronegativities and a proclivity to gain electrons in noble gas configurations. Myths are traditional stories or beliefs that explain cultural or societal beliefs, customs, or natural phenomena. They can be passed down through generations and can be based on true or fictitious events. Mythology, on the other hand, is the collection of myths associated with a specific culture or religion. Mythology can be amplified through retelling, incorporation into religious practices; association with significant events or figures, and adaptation into other media forms such as literature, film, or art.

Answer:

B.

Explanation:

Density = mass / volume

mass = 100 grams

volume = 8.65 mL

Density = 100 / 8.65 = 11.56 B.