20.4 L of 0.650 M HCI reacts with 36L of KOH solution of unknown concentration. What is the molarity of the KOH solution?

Answer:

Highest wavelength : radio waves

So lowest energy: radio waves

Hence order is:

radio waves < microwaves < IR waves < visible light < ultraviolet radiation < X-rays < gamma rays

Answer:

Oxygen and sugar

Explanation:

Hope this helps! Please give branliest.

When an electron absorbs photons it moves to a higher energy level.

Absorption of photons occurs when electrons in a given state absorb photons which causes them to gain energy and jump to higher energy levels.

The electrons will move to higher energy level because they have acquired more energy.

Thus, when an electron absorbs photons it moves to a higher energy level.

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Answer:

mass number=126

Explanation:

57+69=126

Answer:

5.6 m which is molarith this solution

Answer: 341.6k

Explanation:

R= 0.0821

n= 0.46moles

v= 13.3L

p= 734mmhg = 734/760 = 0.97

[tex]T = \frac{p*v}{n*R}[/tex]

[tex]T = \frac{0.97*13.3}{0.46*0.0821}[/tex]

T= 341.6k

Answer:

10100101

Explanation:

this is for the other person alt.

Answer:

The chemical compounds of living things are known as organic compound because of their association with organisms and because they are carbon-containing compounds, which are the compounds associated with life processes, are the subject matter of organic chemistry

Answer:

See below ~

Explanation:

A to B

⇒ Solid Phase

==========================================================

B to C

⇒ Melting

==========================================================

C to D

⇒ Liquid Phase

==========================================================

D to E

⇒ Vaporizing

============================================================

E to F and beyond

⇒ Gas Phase

Answer:

713.96mmhg

Explanation:

p1v1=p2v2

6.10×1.50/9.74

=0.939atm

=0.939*760

=713.96mmhg

Answer: 0.66 M

Explanation:

[tex]M_{A}V_{A}=M_{B}V_{B}\\(80.0)M_{A}=(36.2)(1.45)\\M_{A}=\frac{(36.2)(1.45)}{80.0} \approx \boxed{0.66 \text{ M}}[/tex]

The example of an ester used as a fragrance is isopentyl acetate and it is present in banana. Details about esters can be found below.

Esters are compounds most often formed by the condensation of an alcohol and an acid and has the functional group carbon-oxygen double bond joined via carbon to another oxygen atom.

Esters are naturally found in certain fruits and can be used as major constituent of perfumes. An example of ester used as fragrance is isopentyl acetate.

Isopentyl acetate has the molecular formula of C7H14O2 and has a banana flavor.

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According to the postulates of kinetic molecular theory, the particles of a liquid are close together and are in constant random motion.

The Kinetic theory of matter states that all forms of matter are made up of tiny particles which possess kinetic energy and are in constant state of motion.

The strength of the forces keeping the particles together determines the state in which that substance exists in.

For liquids, the intermolecular forces of attraction between between the molecules are not very strong, and as such, the particles of a liquid are in constant state of random motion.

Therefore, according to the postulates of kinetic molecular theory, the particles of a liquid are close together and are in constant random motion.

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After 160 years, the activity level of the sample will be 0.5 curies.

Half life of any radioactive waste is the half decay of that product.

The formula is [tex]\dfrac{\lambda }{\lambda_1} = 2^\dfrac{a}{b}[/tex]

Where, λ is 4 cruies

λ1 is 0.5 cruies

b = 40 years

Putting the values in the equation

[tex]\dfrac{4}{0.5} = 2^\dfrac{a}{40}\\\\\\\dfrac{a}{40} = 4\\ = 160 years[/tex]

Thus, the correct option is 160 years.

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Answer:

Moles of substance are defined ratio of the given mass of the substance to the molar mass of the substance.

Given :

The 52.06 grams of carbon dioxide.

To find :

The moles of carbon dioxide.

Solution:

The mass of carbon dioxide = 52.06 g

The molar mass of carbon dioxide = 44.01 g/mol

The moles of carbon dioxide:

1.183 moles of carbon dioxide are there in 52.06 g of carbon dioxide.

Explanation:

Answer:

So A: an addition to a base sequence at the beginning of a gene

Explanation:

This is known as point mutation and it does not have any significant change in the protein and it is least harmful type of DNA mutation.

The statements which best describe beta decay are: option 1, 2 and 4.

A beta particle can be defined as an isotope which typically undergoes radioactive decay through the emission of a radiation with a -1 charge.

Based on scientific information and records from radioactivity, we can infer that the statements which best describe beta decay are:

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Answer:

1,2,4

Explanation:

Answer: 16.7 %

Explanation:

[tex]\frac{30.0}{150.0+30.0}=\boxed{16.7\%}[/tex]

Since the reaction is not spontaneous at room temperature, the ΔH will be positive.

They are reactions that require no additional effort in order for them to take place under certain conditions.

For spontaneous reactions, the change in the energy of the system, otherwise known as ΔH, is always negative. On the other hand, reactions with positive ΔH are non-spontaneous.

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Answer: 80.9 K

Explanation:

[tex]Q=mc \Delta T\\\\1345=(43.2)(0.385) \Delta T\\\\\Delta T=\frac{1345}{(43.2)(0.385)} \approx \boxed{80.9 \text{ K}}[/tex]

Wavelengths of absorbed or emitted photons causes lines in a line spectrum.

Spectral lines are produced by transitions of electrons within atoms. As the electrons move closer or farther from the nucleus of an atom, energy is released in the form of light is emitted.

So we can conclude that Wavelengths of absorbed or emitted photons causes lines in a line spectrum.

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Emmett is lifting a box vertically. The forces that are necessary for calculating the total force is Fp and Fg. The correct option is D.

Force is an influence or strength that is used to initiate an action or movement. There are total eight types of forces are present.

Fp is the applied force and Fg is the force of gravitation, if Emmett is lifting a box vertically, these force will be applied

Thus, the correct option is D, Fp and Fg.

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Answer:

D

Explanation:

Edge 2022

Answer:

Increases

Explanation:

The general effect we see as temperature increases is that rate of dissolution of a solid solute increases,

Therefore, we can say that :

Temperature ∝ Rate of dissolution

The increase in volume shift the equilibrium towards making more moles of gas, decrease in volume shift the equilibrium towards producing fewer moles of gas.

The equilibrium of the gas is based on the pressure of the gas. With the increase in pressure, the equilibrium moves towards making fewer molecules of gas.

The gas equilibrium is proportional to the equilibrium K.

Increase in volume shift the equilibrium towards making more moles of gas, decrease in volume shift the equilibrium towards producing fewer moles of gas.

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Answer:

4.25atm

Explanation:

[tex]\frac{P1V1}{T1}\\[/tex]=[tex]\frac{P2V2}{T2}[/tex]

where ,

p1 =845/760=1.11atm

v1=6.50l

t1=25c +273k=298k

p2=?

v2=1850/1000=1.85l

t2=325k

so answer is 4.25 atm

Answer:

What is the difference between pools and fluxes?

Image result for Is industry pool or flux

Fluxes describe the movement of energy and matter between different pools. When you pour a glass of juice for yourself, the juice bottle and the glass are both “pools” for the apple juice. The act of pouring it from the bottle to the glass is the flux

Explanation:

The wave which is created by causing vibrations in particles of matter is a mechanical wave.

A wave is a disturbance in a medium which transmits transmits energy from one point to another without a permanent displacement of the particles of the medium.

Types of waves include:

Mechanical waves are waves which are produced as a result of the vibrations of the particles of the medium.

Therefore, the wave which is created by causing vibrations in particles of matter is a mechanical wave.

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The moles of unknown weak acid (HA) in a 100L solution are required to produce a solution with pH 2 is 0.002 moles.

The acid dissociation constant of an acid is given by the formula below:

[tex]K_a= \frac{[A^{-}][H_3O^{-}]}{[HA]}[/tex]

Where

Since, the Ka is given at equilibrium concentrations, [H3O+] = [A-]

[A-] = 10^-2

Making [HA] subject of the formula:

[tex][HA]= \frac{[10^{-2}][10^{-2}]}{5 \times 10^{ - 3} } = 0.02[/tex]

Moles of acid = 0.1 × 0.02 = 0.002 moles

Therefore, the moles of unknown weak acid (HA) in a 100L solution are required to produce a solution with pH 2 is 0.002 moles.

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Answer:

x+y = 12

Explanation:

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Answer:

the aNSWRER TOP UR QUESTION IS THAT I NMEED TO ANSWER THIS SO I DONT HAVE TO WQATCH ADS  LOL

Explanation:

DSADSDASDASDASDSDSDSDSDS and i knowq chem is bio chwem is