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sukhopar [10]
3 years ago
5

What happens to the particles in a gas when they touch a cold surface?

Chemistry
1 answer:
leva [86]3 years ago
8 0

Answer:

they condensate

Explanation:

for the example let's use water vapor when gas particles are cooled down they slow done and then they change the state of matter in this case it turns into a liquid hope this helps

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A scientist measures the standard enthalpy change for the following reaction to be -139.5 kj :
jeyben [28]

Answer:

A scientist measures the standard enthalpy change for the following reaction to be -139.5 kj :

h2(g) + c2h4(g)c2h6(g)

based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of c2h4(g) is _____ kj/mol

Explanation:

Hydrogen ΔHof (kJ/mol) ΔGof (kJ/mol) So (J/mol K)

H2 (g)

0

0

130.7

Carbon ΔHof (kJ/mol) ΔGof (kJ/mol) So (J/mol K)

C2H6 (g)

-84.7

-32.8

229.6

7 0
2 years ago
In this image, which fundamental interaction is responsible for attracting the electron?
Elza [17]

Answer:

a.

Explanation:

electromagnetism

8 0
3 years ago
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What is the molarity of a solution prepared by dissolving 2.5 grams of LiNO3 in sufficient water to make 60.0 mL of solution?​
Murrr4er [49]

Answer: hope this helps

To make molar NaCl solutions of other concentrations dilute the mass of salt to 1000ml of solution as follows:

0.1M NaCl solution requires 0.1 x 58.44 g of NaCl = 5.844g.

0.5M NaCl solution requires 0.5 x 58.44 g of NaCl = 29.22g.

2M NaCl solution requires 2.0 x 58.44 g of NaCl = 116.88g.

Explanation:

6 0
4 years ago
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The stability of an isotope is related to its ratio of
Paladinen [302]

< neutrons to protons >

Hope this is helpful

3 0
4 years ago
Express the density 5.6 g/cm3
Irina-Kira [14]
I think it's 5,600kg/m^3
5 0
3 years ago
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