Question 3 & what is the hydronium concentration for a solution with a poh = 12.04 o -1.08 m o.98 m 0.011 m p o 1.96 m question 4 a solution is made by combining 2.5 moles of hf (ka 3,5 x 19 and 3.5 mol click save and submit to save and submit chick save asters to small ans​

Answer:

C. newton's third law of motion

Explanation:

as newton's third law of motion states that every action has a reaction that is equal in size, opposite in direction, and acts simultaneously.

Answer:

helllllooooooo hi how is life

Answer:

hiiii

Explanation:

The mechanical procedure of peeling is often referred to as exfoliation. Exfoliation is the term used to describe the process whereby rock sheets gradually separate from exposed rocks along fissures.

By using mechanical means, rocks and minerals are broken apart. Their chemical make-up does not alter. A big rock mass can be physically weathered into smaller, more easily moved, and more readily eroded pieces. Even enormous rocks frequently break along weak spots in nature. Exfoliation in metamorphic rocks, joints in huge igneous rocks, and bedding planes in sedimentary rocks are a few of the most typical.

To learn more about mechanical weathering refer to;

brainly.com/question/15067483

#SPJ4

In a 0. 175 mol kg-1 kf solution, 347 g of water contains 6.07 x 10-2 moles of kf.

What is the definition of "molality"?

Its molality (m), often called molal concentration, is the amount of a substance dissolved in a mass of solvent. It is defined as the moles of a solute per kilogramme of a solvent. The term "molarity," which describes the molar concentration of a solution, is the root of the word "molality."

The mole is the volume of a system that contains 0.012 kilos of carbon 12 and the same number of atoms as there are elementary particles.

Water, m1, has a mass of 347g.

M's molality is 0.175 mol/kg.

Since 1 ml of water has a mass of 1 gramme, 347 g of water is equivalent to 347 ml, or 0.347 L.

As a result, KF is equal to 0.17 * 0.347, or 6.07 x 10-2.

Learn more about molality here :

brainly.com/question/1370684

#SPJ4

Answer:

Magnesiumoxide

Explanation:

I don't know

Silicon-oxygen bonds are stronger than magnesium-oxygen bonds because Si-O bonds are more covalent (option A).

Learn more about bonds: https://brainly.com/question/29282058

#SPJ11

Answer:

Explanation:

Here, we want to select an option that represents a chemical property of carbon

Let us take a look at the options;

a) This is a physical property that talks about the color of the gas at a certain temperature

b) This is a physical property that talks about the smell of the gas at a certain temperature

c) This is a physical property that talks about the weight in comparison to the same weight of air at that particular temperature

d) This is a chemical reaction as an entirely new substance will be formed

amount of electrons on their outer shell: 1 electron.

These elements have similar chemical properties because they have the same valence electrons.

A valence electron is just a negatively charged particle that could be transferred to and is found in the atom's outermost shell.

A pure substance made up entirely of atoms with the same number of protons in respective nuclei is known as an element.

Therefore, these elements have similar chemical properties because they have the same valence electrons.

To know more about valence electrons.

https://brainly.com/question/12717954.

#SPJ2

Answer:

A and D

Explanation:

The total pressure inside the container is ; 9 atm

Applying Dalton's law of partial pressure the total pressure for a mixture of gases equals sum of all partial pressures  

Therefore :

Total pressure = P1 + P2 + P3

                         = 2 atm + 3 atm + 4.0 atm

                         = 9 atm.

Hence we can conclude that the total pressure inside the container is ; 9 atm

Learn more about partial pressures : https://brainly.com/question/1835226

#SPJ1

Answer:

it would be the same weight but it's ith sugar I think it would way more

Answer:

Carbon dioxide is a compound

Explanation:

It is formed by chemical combination of carbon and oxygen atoms

Type of bonding that holds water molecules together is : Polar covalent bonding.

In a water molecule with unequal electron sharing, polar covalent bonding holds atoms with different electronegativity together.

A water molecule is made up of two hydrogen atoms joined by covalent bonds to the same oxygen atom. Because oxygen atoms are electronegative, they attract shared electrons in covalent bonds. As a result, the electrons in the water molecule spend slightly more time near the oxygen atomic center and slightly less time near the hydrogen atomic centers.

As a result, the covalent bonds are polar, and the oxygen atoms have a slight negative charge (due to the presence of an extra electron share), whereas the hydrogen atoms have a slight positive charge (from the extra un-neutralized protons).

Find more on water molecules and electronegativity at : brainly.com/question/2396569

#SPJ4

The specific composition of oil-based paint can vary depending on the brand and formulation.

Oil-based paint typically consists of three main components: pigments, binders, and solvents. The pigments provide the color and opacity to the paint, while the binders are responsible for holding the pigment particles together and adhering them to the painted surface. The solvents help to adjust the paint's consistency and facilitate its application.

The binder in oil-based paint is commonly a natural oil, such as linseed oil or tung oil. These oils are composed of fatty acid molecules, which contain a long carbon chain with a carboxyl group (-COOH) at one end. The carboxyl group can react with oxygen in a process called oxidation, forming a cross-linked network of molecules that harden over time, creating a durable paint film.

The solvents in oil-based paint are typically organic compounds, such as mineral spirits or turpentine. These solvents dissolve the binder and pigments, making the paint flowable and easy to apply. As the solvent evaporates, the paint gradually dries and the binder undergoes the oxidation process, resulting in the formation of a solid paint film.

To know more about composition refer here

https://brainly.com/question/32502695#

#SPJ11

Answer:

nickel, cobalt would decrease in size when it became an iron

Answer:

Número de masa: 12

Explanation:

Mass of an atom = protones + neutrons

5+7=12

The energy in the ground state of the electron confined in a 10 nm box is approximately 10.89 eV, and the energy in the first excited state is approximately 43.56 eV.

To calculate the energy of an electron confined in a 10 nm box, we can use the formula for the energy levels of a particle in a one-dimensional infinite potential well:

E_n = (n^2 * h^2) / (8 * m * L^2)

where:

E_n is the energy of the nth energy level,

n is the quantum number of the energy level (n = 1 for the ground state),

h is the Planck's constant (6.626 x 10^-34 J·s),

m is the mass of the electron (9.10938356 x 10^-31 kg),

L is the length of the box (10 nm = 10 x 10^-9 m).

Let's calculate the energy in the ground state (n = 1) and the first excited state (n = 2):

For the ground state (n = 1):

E_1 = (1^2 * h^2) / (8 * m * L^2)

Substituting the values:

E_1 = (1^2 * (6.626 x 10^-34 J·s)^2) / (8 * (9.10938356 x 10^-31 kg) * (10 x 10^-9 m)^2)

Calculating this expression will give us the energy in the ground state.

For the first excited state (n = 2):

E_2 = (2^2 * h^2) / (8 * m * L^2)

Substituting the values:

E_2 = (2^2 * (6.626 x 10^-34 J·s)^2) / (8 * (9.10938356 x 10^-31 kg) * (10 x 10^-9 m)^2)

Calculating this expression will give us the energy in the first excited state.

Please note that the energies calculated will be in joules (J). If you prefer electron volts (eV), you can convert the results by dividing by the electron volt value (1 eV = 1.602 x 10^-19 J).

Performing the calculations:

For the ground state:

E_1 = (1^2 * (6.626 x 10^-34 J·s)^2) / (8 * (9.10938356 x 10^-31 kg) * (10 x 10^-9 m)^2) ≈ 1.747 x 10^-18 J

For the first excited state:

E_2 = (2^2 * (6.626 x 10^-34 J·s)^2) / (8 * (9.10938356 x 10^-31 kg) * (10 x 10^-9 m)^2) ≈ 6.987 x 10^-18 J

Converting the energies to electron volts (eV):

E_1 ≈ 10.89 eV (rounded to two decimal places)

E_2 ≈ 43.56 eV (rounded to two decimal places)

Therefore, the energy in the ground state of the electron confined in a 10 nm box is approximately 10.89 eV, and the energy in the first excited state is approximately 43.56 eV.

Learn more about electron from the given link!

https://brainly.com/question/13998346

#SPJ11

Answer:

5

Explanation:

The properly balanced chemical equation for this is:

Pb(NO₃)₂ + H₂S → PbS + 2HNO₃

The coefficients in order are 1, 1, 1, and 2.

Therefore, 1+1+1+2=5

The sum of the coefficients added up is 5.

Explanation and Answer:

This is an opinion based question and there could be many different responses these are just examples of solution to restore the fishery:

-limiting the season during which lobsters can be caught this allows the population to reproduce itself gradually but maintaining it in control

-limiting the amount of lobster that can be caught therefore again letting the population increase

626 moles of glucose is equivalent to 14,022.4 litres.

The standard molar volume of a gas is 22.4 L. 1 mol of an ideal gas occupies a volume of 22.4 L,

Molar volume at STP (standard temperature and pressure) can be used to convert from moles to gas volume and from gas volume to moles.

The equality of 1mol = 22.4L is the basis for the conversion factor. This means that 626 moles of glucose will be equivalent to 626 × 22.4 = 14,022.4 litres of glucose.

Learn more about moles and volume at: https://brainly.com/question/22967790

#SPJ1

Answer:

Reduction half

Fe2+ +2e -------> Fe

Oxidation half

Mn-----> Mn4+. +4e

Explanation:

Oxidation is loss of electron and reduction is gain of electron

answer is 20

explanation: total Pressure = 205

partial pressure of N = 143

partial pressure of He = 41

total pressure = partial pressure of N + partial pressure of O + partial pressure of He

partial pressure of O = 205 - 185 = 20

Answer:

20

Explanation:

The reaction is an oxidation-reduction reaction because here Sodium is oxidized from Na to Na⁺ while hydrogen is reduced from H⁺ to H₂⁰.

The reaction below: 3Na(s) + 3H₂O(l)= 3NaOH(aq) + H₂(g)

1. The reaction is an oxidation-reduction reaction because here Sodium is oxidized from Na to Na⁺ while hydrogen is reduced from H⁺ to H₂⁰.

2.  The substances oxidized are Na and reduced. is H⁺.

3. The reducing agent is Na and the oxidizing agent is H₂O.

4.  half ionic equation for the oxidation

  Na => Na⁺ + e⁻

The half ionic equation for the reduction equation.

H₂O + e⁻ => H₂

An oxidation-reduction reaction is any chemical response in which the oxidation number of a molecule, atom, or ion changes by way of gaining or losing an electron. Redox reactions are common and crucial to some of the basic features of lifestyles, such as photosynthesis, respiration, combustion, and corrosion or rusting.

Oxidation is a chemical procedure. it is defined as a method that occurs whilst atoms or agencies of atoms lose electrons. some other manner to define oxidation is when a chemical species gains oxygen or loses hydrogen. whilst these activities occur, oxidation takes area.

Learn more about the oxidation-reduction reactions here:-https://brainly.com/question/17136827

#SPJ9

Answer:

[H⁺] = 4.56x10⁻³ M

pH = 2.34

Explanation:

Hello there!

In this case, according to the ionization reaction of benzoic acid:

\(HC_6H_5CO_2+H_2O\rightleftharpoons C_6H_5CO_2^++H_3O^+\)

Whereas \([H_3O^+]=[H^+]\), we can set up the equilibrium expression in terms of \(x\) (reaction extent) to obtain:

\(Ka=\frac{[C_6H_5CO_2^-][H_3O^+]}{[HC_6H_5CO_2]} \\\\6.5x10^{-5}=\frac{x^2}{0.32-x}\)

However, since Ka<<<1, we can neglect the \(x\) on bottom to easily solve for it:

\(6.5x10^{-5}=\frac{x^2}{0.32}\\\\x=\sqrt{6.5x10^{-5}*0.32} \\\\x=4.56x10^{-3}\)

Which is actually the same as [H⁺]. Finally, the pH turns out to be:

\(pH=-log(4.56x10^{-3})\\\\pH=2.34\)

Best regards!

Answer:

Just add a plenty of dots in the first one and very few dots in the second one

An area with high population density will have many dots while areas will low population density will have few dots when using dots to illustrate population density.

Population density is the ratio of the total number of organisms found in a given area to the total of the area of that place or habitat.

An area with high population density indicates that more organised ate found per unit area than an area with low population density.

Therefore, using dots to illustrate population density, an area with high population density will have plenty dots while areas will low population density will have few dots scattered over.

Learn more about population density at: https://brainly.com/question/13902749

Answer:

velocity = 100 km/h

Explanation:

To calculate the velocity given the distance travelled and the time taken, we can use the following formula:

\(\boxed{\mathrm{velocity = \frac{distance \ travelled}{time \ taken}}}\).

In the question, we were told that Ayana travelled 60 km in 0.6 h. Using this information and the formula above, we can calculate Ayana's velocity:

velocity = \(\frac{60 \ km}{0.6 \ h}\)

             = 100 km/h

Therefore, her velocity was 100 km/h.

24074 (Rh) atoms would have to be placed side by side to span a distance of 6.0.

The smallest piece of matter that exists in the universe is an atom. Atoms that are neutral or ionized make up every material in our environment. The atoms are tiny, spherical objects, and the Armstrong unit is used to measure their diameter.

1A = (10^-10)

The diameter of a rhodium atom (Rh) is approximately d = 2.7 x 10^-10

so,

It is assumed that if we keep n atoms next to one another, we will create a distance of L = 6.5μm  = 6.5 x 10^-6

In this case,

We can see that if we keep the atoms side by side, the total length of them will be determined by adding the total diameters.

we have:

L = n d

n = L/d

Putting values :

n = (6.5 x 10^-6)/( 2.7 x 10^-10)

n = 24074

24074 (Rh) atoms would have to be placed side by side to span a distance of 6.0

To know more about Atom visit:

https://brainly.com/question/1566330

#SPJ4

The amount of heat given off by lead is Q = - 1776.5J

Given,

Mass of the lead = 85g

Decreased temperature = 200 ⁰c to 10 ⁰c

Specific heat capacity of lead= 0. 11 j/g ⁰c

where T1=200degrees Celsius and T2=10 degree Celsius.

Q=MCΔT

ΔT=T2-T1

ΔT=10-200 = -190°C

Q = Change in energy

M = mass of a substance

C= Specific heat capacity

Q = (85g) * (0.11J/g °c) * (-190°C)= -1776.5J

Q=-1776.5J

Specific heat capacity:

A material's specific heat capacity, also known as massive heat capacity, is determined using thermodynamics as the specific heat of an unit of the compound scaled by the the sample's mass.

The specific heat capacity of a substance is defined as the number of heat (J) received per unit of mass (kg) when its temperature increases 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).

Learn more about specific heat capacity here:

https://brainly.com/question/16952828

#SPJ4

To solve the stoichiometry problems we need the amount of reactants given in mole and the product is sought in mole. We use  it because then all we have to do is the mole ratio from the balanced chemical equation  to solve the problem

The option B is correct.

What do you mean by Stoichiometry ?

Stoichiometry can be defined as  the quantitative relationships or ratios between two or more substances undergoing a physical change or chemical change. Jeremias Benjaim Richter defined stoichiometry in 1792 as the science of measuring quantities or mass ratios of chemical elements. It is the study of mass relations

It can be analyzed by

To know more about Stoichiometry from the given link

https://brainly.com/question/14935523

#SPJ4