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Aleks [24]
2 years ago
13

Choose the atom with the larger first ionization energy.

Chemistry
1 answer:
sammy [17]2 years ago
5 0

Answer:

ACTUALLY the correct answer is

helium

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Waves transport water in the deep ocean toward the coastlines. True or false
ASHA 777 [7]

Answer:

Most likely true

Explanation:

because the speed of all ocean waves is controlled by gravity, wavelength, and water depth. ... Waves moving through water deeper than half their wavelength are known as deep-water waves. On the other hand, the orbits of water molecules in waves moving through shallow water are flattened by the proximity of the sea surface bottom.

7 0
3 years ago
At what temperature, would the volume of a gas
PtichkaEL [24]

Explanation:

P1V1 = nRT1

P2V2 = nRT2

Divide one by the other:

P1V1/P2V2 = nRT1/nRT2

From which:

P1V1/P2V2 = T1/T2

(Or P1V1 = P2V2 under isothermal conditions)

Inverting and isolating T2 (final temp)

(P2V2/P1V1)T1 = T2 (Temp in K).

Now P1/P2 = 1

V1/V2 = 1/2

T1 = 273 K, the initial temp.

Therefore, inserting these values into above:

2 x 273 K = T2 = 546 K, or 273 C.

Thus, increasing the temperature to 273 C from 0C doubles its volume, assuming ideal gas behaviour. This result could have been inferred from the fact that the the volume vs temperature line above the boiling temperature of the gas would theoretically have passed through the origin (0 K) which means that a doubling of temperature at any temperature above the bp of the gas, doubles the volume.

From the ideal gas equation:

V = nRT/P or at constant pressure:

V = kT where the constant k = nR/P. Therefore, theoretically, at 0 K the volume is zero. Of course, in practice that would not happen since a very small percentage of the volume would be taken up by the solidified gas.

8 0
3 years ago
On Wednesday a girl asked me out what do i say?
allsm [11]

do you like her?

and can you date her?

5 0
3 years ago
Read 2 more answers
1. When there is light, photosynthesis can
Bas_tet [7]

Answer:

A

Explanation:

8 0
3 years ago
Read 2 more answers
Be sure to answer all parts. A mixture of CO2 and Kr weighs 47.9 g and exerts a pressure of 0.751 atm in its container. Since Kr
ololo11 [35]

Answer:a)  Mass of CO_2 in mixture = 26.3 grams

b) Mass of Kr in mixture that can be recovered= 21.5 grams

Explanation:

Given :

Total Pressure = pressure of krypton + pressure of carbon dioxide = 0.751 atm

pressure of krypton = 0.231 atm

Thus pressure of carbon dioxide = 0.751 - 0.231 =0.52 atm

As we know:

p=x\times P

where,

p = partial pressure

P = total pressure = 0.751 atm

x = mole fraction

For CO_2

x_{CO_2}=\frac{p_{CO_2}}{P}=\frac{0.52}{0.751}=0.70

{\text {Mass of} CO_2}=moles\times {\text {Molar mass}}=0.70\times 44=30.8g

For Kr

x_{Kr}=\frac{p_{Kr}}{P}=\frac{0.231}{0.751}=0.30

{\text {Mass of} Kr}=moles\times {\text {Molar mass}}=0.30\times 84=25.2g

Total mass = Mass of CO_2 + Mass of krypton = 30.8 + 25.2 = 56 g

Percentage of CO_2=\frac{30.8}{56}\times 100=55\%

a) Thus Mass of CO_2 in mixture =\frac{55}{100}\times 47.9=26.3g

Percentage of Kr=\frac{25.2}{56}\times 100=45\%

b) Thus Mass of Kr in mixture that can be recovered=\frac{45}{100}\times 47.9=21.5g

7 0
3 years ago
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