Which element has the largest atomic radius?

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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]

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:

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 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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Answer:

5.6 m which is molarith this solution

The ionization constant from the reaction as shown in the calculation is 5.8.

The term ionization constant refers to the extent to which the acid is ionized in solution. It is calculated from;

Ka = [H3O^+] [Cl]/[HCl]

Thus when we substitute the values;

Ka = 13.3 * 7.4/ 16.9

Ka = 5.8

The ionization constant from the reaction as shown in the calculation is 5.8.

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Answer:

B

Explanation:

The methyl prefix means theres a CH3 group bonded to a carbon in a hydrocarbon. This is called branching because it looks like a branched tree. This is literally cheating but you do you.

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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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

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: 16.7 %

Explanation:

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

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:

mass number=126

Explanation:

57+69=126

Answer:

x+y = 12

Explanation:

shfb gfgjj ghjj dvgg ggggg ghggs ufac t g dgyyh

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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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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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

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:

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:

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:

Answer: B - 0.0098 moles

Explanation:

<3

A gas at STP is heated to 35 degree C. The new pressure will be 2.41 atm.

The pressure of the mass of the gas is directly proportional; to the temperature of the gas.

[tex]\dfrac{P_1 }{T_1} =\dfrac{P_2}{T_2}[/tex]

Converting the temperature into kelvin

The initial temperature = 35 °C = 35 + 273 K= 308 K

The final temperature = 50 °C =50 + 273 K = 323 K

Initial pressure = 2.3 atm

Final pressure ?

Putting the values in the equation

[tex]\dfrac{P_1 }{T_1} =\dfrac{P_2}{T_2}\\\\\\{P_2 = \dfrac{P_1 \times T_2}{T_1} \\\\\\\\\\{P_2 = \dfrac{2.3 \times 323 }{308} = 2.41 atm.[/tex]

Thus, the new pressure will be 2.41 atm.

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Answer:

ywhehehehehdgdudcdudcd uy dshdcvv

Explanation:

bdbdkzkzjzdkdkzdvdisisksjskakskskzbx vxydcdudschahahbshshs

The total pressure in the container after the three gases are mixed is 6 atm and the partial pressure of He is 1 atm.

According to Dalton's Law of Partial Pressure , the pressure exerted by a mixture of gas is equal to the sum of the partial pressure of the gases in the mixture.

P(total) = p₁ +p₂+p₃+.....

As the volume of the containers are same and the

n = 1*5/RT for Helium

n = 2*5 /RT for Neon

n= 3*5/RT for Argon

Mole fraction = moles of the element/Total moles

Moles fraction of Helium is

[tex]\rm \dfrac{1*5}{1*5+2*5+3*5}[/tex]

= 1/6

Total Pressure in the container = 1 + 2 +3 = 6 atm

The partial pressure of Helium will be

=Mole fraction * Total pressure

=(1/6)*6 atm

= 1 atm , as the volume is same the temperature is same , the pressure will also be same.

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Answer:Your can use the internet There is a web site that is called periodic table.com it is very use full

Explanation:Have fun

Answer:

Explanation:

You would have to add up the atomic masses of all the compounds in the compound, making sure you include how many molecules of each are in the compound

For example, in CuSOA we have 1 molecule of Cu and S, as 4 molecules of O

The atomic masses are as follows:

Cu = 63.55 u

S = 32.065 u

O = 15.99 units

This is how we would add it up:

(Atomic mass of Cu) + (Atomic mass of S) + 4(Atomic Mass of O)

(63.55) + (32.065) + 4(15.99)

(63.55) + (32.065) + 63.96

= 159.575 u

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 answer is D.

Explanation:

Including soluble fiber into your diet can lower cholesterol levels.