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timofeeve [1]
3 years ago
9

What does it mean if two objects are in thermal equilibrium?

Chemistry
1 answer:
galina1969 [7]3 years ago
6 0

Answer:

ang hirap nixbsxbaaaaksbs

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The formula K₂S indicates that _______.
Pachacha [2.7K]
The subscriot 2 means that in the formula there are two parts of K, and the subscript 1 (implicit) for S, indicates that there is one part of S.

This is, the formula gives the ratio of the elements K and S in the compound, which is:

2 atoms of K : 1 atom of S.

Answer: there are 2 atoms of K and 1 atom of S in a molecule of K2S.
5 0
3 years ago
Concentrations-
Arisa [49]
Moles of HCl is 3.47mol

Work shown on photo

6 0
3 years ago
Hannah wants to make some toast for breakfast, but she has 3 minutes before she has to leave for school.
marusya05 [52]

Answer: increase the temperature of the toaster oven.

Explanation:

3 0
3 years ago
13. What is the total pressure inside the container​
nasty-shy [4]

<u>Answer:</u> The total pressure inside the container is 77.9 kPa

<u>Explanation:</u>

Dalton's law of partial pressure states that the total pressure of the system is equal to the sum of partial pressure of each component present in it.

To calculate the total pressure inside the container, we use the law given by Dalton, which is:

P_T=p_{N_2}+p_{O_2}+p_{Ar}

We are given:

Vapor pressure of oxygen gas, p_{O_2} = 40.9 kPa

Vapor pressure of nitrogen gas, p_{N_2} = 23.3 kPa

Vapor pressure of argon, p_{Ar} = 13.7 kPa

Putting values in above equation, we get:

p_T=23.3+40.9+13.7\\\\p_{T}=77.9kPa

Hence, the total pressure inside the container is 77.9 kPa

7 0
3 years ago
How many atoms are in 3.5 moles of NaCl?
Ivenika [448]

Answer:

2.11  ×10²⁴ atoms

Explanation:

Given data:

Number of moles of NaCl = 3.5 mol

Number of atoms = ?

Solution:

It is known that 1 mole contain 6.022×10²³ atoms. The number 6.022×10²³ is called Avogadro number.

3.5 mol ×6.022×10²³ atoms / 1 mol

21.1 ×10²³ atoms

2.11  ×10²⁴ atoms

5 0
3 years ago
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