Water has more structure than other liquids because of its ability to form hydrogen bonds. Because of this phenomena, water expresses a relatively high __________, which allows it to cushion and protect the body’s structures.

The value of the Ksp for silver (I) carbonate is 8.39 × 10⁻¹¹M⁴ if the saturated solution is prepared by dissolving silver (I) carbonate in water.

The solubility product constant (Ksp) of silver (I) carbonate can be calculated by using the concentration of the silver ion present in the solution. The given concentration of silver ion, [Ag+1] is 2.56 × 10⁻⁴ M. The balanced chemical equation for the dissolution of Ag₂CO₃ is given below;

Ag₂CO₃ → 2Ag⁺ + CO₃²⁻

According to the above equation, each mole of silver carbonate that dissolves produces two moles of Ag⁺ ions. Therefore, if ‘s’ moles of silver carbonate dissolve, then the concentration of Ag⁺ ions would be equal to 2s. Thus;

2s = [Ag+1]s = 2.56 × 10⁻⁴ M

The molar solubility of Ag₂CO₃ is therefore equal to;S = s / Vwhere V is the volume of the solution in liters, and s is the molar solubility of Ag₂CO₃.Substituting the value of s, we have;

S = 1.28 × 10⁻⁴ / VS = 1.28 × 10⁻⁴ M

The Ksp of Ag₂CO₃ is given by the product of the concentrations of the silver ion and carbonate ion in the solution, raised to their respective stoichiometric coefficients. That is;Ksp = [Ag+1]²[CO₃²⁻]

Now, we know the concentration of silver ion, and since Ag₂CO₃ is a sparingly soluble salt, it dissociates to a negligible extent. Therefore, we can assume that the concentration of carbonate ion is equal to the molar solubility of the salt. Therefore; Ksp = (2.56 × 10⁻⁴)² (1.28 × 10⁻⁴)Ksp = 8.39 × 10⁻¹¹M⁴

Therefore, the value of the Ksp for silver (I) carbonate is 8.39 × 10⁻¹¹M⁴.

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The heat of the reaction is 90.83 kJ/mol.

The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.

It is a measure of how much energy it takes to raise the temperature of a substance. It is the amount of heat necessary to raise one mass unit of that substance by one temperature unit.

It is given by the formula -

                                                  Q = mcΔT

where, Q = amount of heat

m = mass

c = specific heat

ΔT = Change in temperature

Heat of formation is the opposite of heat of reaction.

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Answer:

its B

Explanation:

Answer:

Neron po bang story o wala poh

Answer:

6 pH is a weak acid

Explanation:

Generally, a strong acid has a pH of about zero to 3.

The pH scale typically ranges from 1 to 14, with lower numbers representing acids, higher numbers, bases. Neutral liquids like water have a pH of 7.

(Please heart the answer if you find it helpful, it's a motivation for me to help more people)

Answer:

So, to determine the number of neutrons in atom, we only have to subtract the number of protons from the mass number. # of neutrons = Mass Number - Number of Protons To be able to apply this formula, refer to the atomic number and atomic weight of the elements. These two are listed in the Periodic Table of Elements.

Explanation:

I'm new to brainly so I hope this helped

Answer:

C5H6O3

Explanation:

Number of moles of hydrogen = 0.142 * 2 /18  = 0.0158 moles of H

Number of moles of carbon = 0.579 * 1/44 = 0.013 moles of C

Mass of C = 0.013 moles of C * 12 = 0.156 g

Mass of H = 0.0158 moles of H * 1 = 0.0158 g

Mass of oxygen = 0.3000 - (0.156  + 0.0158 )

Mass of oxygen = 0.1282 g

Number of moles of oxygen =  0.1282 g/16 g/mol = 0.008 moles of O

Dividing through by the lowest number of moles

C-0.013/0.008 , H- 0.0158 /0.008 ,  O- 0.008/0.008

1.625,  1.975, 1 (multiply through by 3)

5,          6,      3

The required empirical formula is C5H6O3

Answer:

Explanation:

7.706 g of CO₂ will contain 12 x 7.706 / 44 g of C

= 2.1 g of C .

This will be contained in 3.256 g of isopentyl acetate

3.156 g of H₂O will contain 2 x 3.156 / 18 g of H

= .351 g of H

This will be contained in 3.256 g of isopentyl acetate

Rest will be oxygen

amount of oxygen in 3.256 g of isopentyl acetate

= 3.256 - ( 2.1 + .351 )

= .805 g

ratio of C , H , O in isopentyl acetate

= 2.1 g : .351 g : .805 g

2.1 / 12 : .351 / 1 : 0.805 / 16 ratio of moles

= .175 : .351 : .05  ratio of moles

= 3.5 : 7.02: 1

= 7 : 14 : 2

empirical formula of  isopentyl acetate

= C₇ H₁₄ O₂ .

You must go to the mountain or apraturakados to answer this question. It will be a daring adventure, but the journey will be worth it. Good luck, student.

The actual answer is 7.58, sorry...

When A solution at 25 degrees Celsius has a pOH of 6.42. So here the pH of the solution is 7.58.

Since we know that

pH + pOH = 14

here

pOH is 6.42

So,

pH = 14 - pOH

= 14 - 6.42

= 7.58

hence, When A solution at 25 degrees Celsius has a pOH of 6.42. So here the pH of the solution is 7.58.

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The pH of the solution that has [OH⁻]= 5.2 x 10⁻⁴ M is (d) 10.72.

To find the pH of the solution with [OH⁻] = 5.2 x 10⁻⁴ M, we need to first find the [H⁺] concentration using the relationship between [H⁺] and [OH⁻], which is given by the ion product of water (Kw):

Kw = [H⁺] x [OH⁻]

Kw for water is 1.0 x 10⁻¹⁴ at 25°C.

Now, calculate [H⁺]:

[H⁺] = Kw / [OH⁻] = (1.0 x 10⁻¹⁴) / (5.2 x 10⁻⁴) = 1.92 x 10⁻¹¹ M

Now, to find the pH, we use the pH formula:

pH = -log[H⁺]

pH = -log(1.92 x 10⁻¹¹) ≈ 10.72

So, the pH of the solution is approximately 10.72, which corresponds to answer choice d.

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Answer:

bro Ur in my school lol

Explanation:

Answer:

Explanation:

There will be no attractive or repulsive force between the two types of magnets. its A i took this quiz and got it correct. ^^

Answer:

blurred an pic mo paki ayos

The given reaction is a double replacement reaction; option B.

A chemical reaction is a reaction in which chemical changes occurs in the atoms of reactants which results in the formation pf products.

The given reaction is as follows:

Since exchange of ions occur, it is a double replacement reaction.

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solvation

Explanation:

Gaseous solutes already have their constituent particles separated, but the concept of being surrounded by solvent particles still applies.)

Explanation:

proton ..............

Answer:

The Circuit will be OPEN since the current source is disconnected.

So if its not turned on... The circuit remains Open

Answer

Option A.

Answer: B.

Hope this helps! :)

Mark me brainliest please.

Answer:

Large hollow-shaped molecules of hexagonal carbon rings

Explanation:

looks like a soccer ball

wikipedia

The flowcharts best outlines the conversion of energy is Kinetic energy to mechanical energy to electrical energy.

Kinetic energy occurs when the object posses energy due to its motion while on the other hand, mechanical energy is the sum of an object's kinetic and potential energy.

The flowing water have kinetic energy and when it falls from a certain height, it has potential energy and when the turbines move electric energy is produced.

So we can conclude that the flowcharts best outlines the conversion of energy is Kinetic energy to mechanical energy to electrical energy.

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When the elements combine, some individual property of the elements is lost and the newly formed compound has new properties. Here among the given options, the compound is carbon dioxide. The correct option is C.

The chemical substances which are made up of two or more elements that are chemically bound together in a definite ratio are defined as the compounds. The compounds are represented by the chemical formula.

A chemical formula is the symbolic representation of atoms which constitute a particular chemical compound. The chemical formula of water is H₂O, which contains 'H' and 'O' atoms.

Here the chemical formula of the compound carbon dioxide is CO₂ and it is made up of two different elements, they are 'C' and 'O' atoms. The type of bonds in a compound may be ionic or covalent.

Thus the correct option is C.

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By the use of the principles of stoichiometry of the reaction, the number of moles of NO is 4.75 moles

Stoichiometry is the branch of chemistry that deals with the quantitative relationships between reactants and products in a chemical reaction. It involves using balanced chemical equations to calculate the amounts of reactants needed and the amounts of products produced in a reaction.

We know that;

8 moles of HNO3 produces 2 moles of NO

19 moles of HNO3 can make x moles of NO

x = 19 * 2/8

x = 4.75 moles

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Answer:

Explanation:

To find the mass given the force and acceleration we use the formula

\(mass = \frac{force}{acceleration} \\ \)

From the question

force = 20 N

acceleration = 4 m/s²

We have

\(mass = \frac{20}{4} \\ \)

We have the final answer as

Hope this helps you

Answer: Wowwwww

Explanation:yes

Yes, O2 and H2O have hydrogen bonding. Hydrogen bonding is a type of chemical bond that occurs when a hydrogen atom is covalently bonded to a highly electronegative atom, such as oxygen or nitrogen.

This creates a partial positive charge on the hydrogen atom and a partial negative charge on the other atom. Oxygen (O2) is a diatomic molecule, meaning it is made up of two oxygen atoms. In this case, it doesn't possess a hydrogen atom to form hydrogen bond with another molecule. In the case of water (H2O), hydrogen bonding does occur. The oxygen atom in water is highly electronegative, and it creates a partial negative charge on the oxygen atom. The two hydrogen atoms in water each have a partial positive charge, and they can form hydrogen bonds with other oxygen atoms in other water molecules. This is what gives water its unique properties such as high boiling point, high surface tension, and high heat of vaporization.

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The ascending material collides with the unyielding lithosphere and becomes immobile.

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Answer:

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 45 × 1544

We have the final answer as

Hope this helps you

Answer:

69,480 kg. m/s

have a nice day!

The following substances can behave as Bronsted-Lowry acids in aqueous solution: HNO₃ and  NH₄+

The correct answer is a and b.

The Bronsted-Lowry acid theory is a chemical theory that explains acids and bases and their reactions. It defines acids as proton donors and bases as proton acceptors.

According to the definition provided by Bronsted–Lowry, an acid is a proton (H+) donor, while a base is a proton acceptor. At the point when a Brønsted-Lowry corrosive loses a proton, a form base is shaped. Similarly, a conjugate acid is produced when a Bronsted–Lowry base acquires a proton.

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Let's see

moles of CO_2

Mass of CO_2

The number of moles of helium occupying a volume of 5.00 L at 227.0°C and 5.00 atm is approximately 0.609 mol. Hence, the correct option is: c)

How can we calculate the number of moles of helium?

To calculate the number of moles, we can use the ideal gas law equation: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

To determine the number of moles, we can use the ideal gas law equation:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

Given:

P = 5.00 atm

V = 5.00 L

T = 227.0°C = (227.0 + 273) K = 500 K (converting to Kelvin)

Now, we can rearrange the ideal gas law equation to solve for the number of moles:

n = (PV) / (RT)

Substituting the given values into the equation:

n = (5.00 atm * 5.00 L) / (0.0821 atm·L/(mol·K) * 500 K)

Calculating this expression gives the number of moles, which is approximately 0.609 mol.

Therefore, the correct option is c) 0.609 mol.

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