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1 year ago

Which two factors decrease as the averagespeed of the particles in a sample

Chemistry

1 answer:

SpyIntel [72]1 year ago

5 0

Answer:

d the average kinetic energy of the particles

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The word eclipse most closely means to

Gennadij [26K]

Answer:

OD) Block the view of

Explanation:

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2 years ago

Discuss on the law of corresponding states

sukhopar [10]

Answer: The law of corresponding states is an empirical law according to which the equations of states for real gases are similar when these gases are expressed in reduced temperature, pressures, and volumes at critical point.

6 0

2 years ago

germanium -66 has a half-life of 2.5 hours. you have 35 grams of radioactive material. after 16 days, how much radioactive mater

Maru [420]

Hey there!

A half-life means after a certain amount of time, half of that substance will be gone/changed after that time.

How many half-lives are in 16 days?

Multiply 16 by 24 (to get the total hours) and divide that by 2.5.

That is 153.6 half-lives.

35(0.5)^(153.6) represents the equation for this.

Simplify this and get 8.88 x 10^(-45).

There will be 2.02 x 10^(-45)g of germanium-66 sample remaining after 16 days.

Hope this helps!

6 0

2 years ago

Magnesium and nitrogen react in a combination reaction to produce magnesium nitride: 3 Mg + N2 → Mg3N2 In a particular experimen

Dafna11 [192]

Answer:

The mass of Mg consumed is 23.76 g.

Explanation:

Magnesium and nitrogen react as : three moles of magnesium reacts with one mole of nitrogen to give one mole of magnesium nitride.

as given that the mass of nitrogen reacted = 9.27 g

moles of nitrogen reacted = $\frac{mass}{molarmass}=\frac{9.27}{28}=0.33$

Thus moles of magnesium reacted = 3 X 0.33 = 0.99 moles

mass of Mg reacted = moles X atomic mass = 0.99 X 24 = 23.76 grams

5 0

3 years ago

A mixture of f2, h2 and xe have mole fractions of 0.25, 0.65, and 0.10, respectively. what is the pressure of f2 if the total pr

PIT_PIT [208]

Answer : The pressure of $F_2$ is 0.975 atm.

Solution : Given,

Mole fraction of $F_2$ = 0.25

Mole fraction of $H_2$ = 0.65

Mole fraction of $Xe$ = 0.10

Total pressure of mixture = 3.9 atm

According to the Dalton's law of partial pressure, which tells that the partial pressure of a gas is directly proportional to the mole fraction of a gas.

$P_{gas}\propto X_{gas}$