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serious [3.7K]
3 years ago
8

A gas mixture contains 1.61 moles of hydrogen and 2.31 moles of oxygen. What is the mole fraction of oxygen?

Chemistry
1 answer:
agasfer [191]3 years ago
5 0

Answer: option B. 0.59

Explanation:Please see attachment for explanation

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Find the density.... Mass is 138g and Volume is 100 mL​
solniwko [45]

Answer:

1380 kilogram/cubic meter

p=\frac{m}{v}

=\frac{138g}{100mL}

=1.38

=1380

4 0
4 years ago
What is the correct prefix for 3 <br> tri-<br> di-<br> mono-<br> tetra-
Ivenika [448]

Answer:

tri-

Explanation:

Examples could be Tri-angle, Tri-cycle, Tri-ceratops

5 0
3 years ago
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An atom of aluminum in the ground state and an atom of gallium in the ground state have the same
Kobotan [32]
(4) total number of valence electrons, because they exist in the same group.
3 0
4 years ago
A. 1720 kJ<br> B. 125.6 kJ<br> C. 3440 kJ<br> D. 4730 kJ
Feliz [49]

Answer:

Q = 3440Kj

Explanation:

Given data:

Mass of gold = 2kg

Latent heat of vaporization = 1720 Kj/Kg

Energy required to vaporize 2kg gold = ?

Solution:

Equation

Q= mLvap

It is given that heat required to vaporize the one kilogram gold is 1720 Kj thus, for 2 kg

by putting values,

Q= 2kg ×  1720 Kj/Kg

Q = 3440Kj

7 0
3 years ago
When force are ____ the object does not move
REY [17]

when forces are balanced the object does not move.

Explanation:

if you and your friend push both sides of the chair at the same time with the same amount of strength the chair wouldn't move.

3 0
3 years ago
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