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iren2701 [21]
2 years ago
12

5. पहले अठारह तत्वों के विभिन्न कक्षों में इलेक्ट्रॉन वितरण के नियम कोलिखिए।​

Chemistry
1 answer:
aniked [119]2 years ago
8 0

分門夌亥峉帕丑岶Explanation:

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What is the name of this compound?
Digiron [165]
2,2-dichloroheptane  because we have two Cl we should use the prefix ''di'' and the numbers "2" and "2" indicated that the two functional groups are located on the same second carbon 
6 0
3 years ago
If a system performs 147 kJ of work while receiving 47 kJ of heat, what is change in its internal energy?
Verdich [7]

Answer:

-100 kJ

Explanation:

We can solve this problem by applying the first law of thermodynamics, which states that:

\Delta U = Q-W

where:

\Delta U is the change in internal energy of a system

Q is the heat absorbed/released by the system (it is positive if absorbed by the system, negative if released by the system)

W is the work done by the system (it is positive if done by the system, negative if done on the system)

For the system in this problem we have:

W = +147 kJ is the work done by the system

Q = +47 kJ is the heat absorbed by the system

So , its change in internal energy is:

\Delta U = +47 - (+147) =-100 kJ

6 0
2 years ago
Please calculate the mixed volume (Vmix) when 0.300 mol of ethanol and 0.200 mol of water are mixed. Hint: The partial molar vol
Grace [21]

Answer:

If we assume the molar volumes of water and ethanol 17.0 and 57.0 cm³/mol, respectively, Vmix = 20.5 cm³.

Explanation:

The molar volume of a substance is the ratio between the volume and the number of moles of the substance. It represents the volume that 1 mol of it occupies. Because we don't have access to page 24, let's assume the molar volumes of water and ethanol 17.0 and 57.0 cm³/mol, respectively.

The volume of mixture (Vmix) is the sum of the volume of each substance, which is the number of moles multiplied by molar volume, so:

Vmix = 0.300*57 + 0.200*17

Vmix = 17.1 + 3.4

Vmix = 20.5 cm³

7 0
3 years ago
Plants, plant life cycles, photosynthesis, plant parts, plant growth is what branch of science
WARRIOR [948]
The study of plants, plant life cycles, photosynthesis, plant parts, etc. is under botany (study of plants).
4 0
2 years ago
If a piece of metal has a density of 9.865 g and a volume of 14 ml, what is its mass?
vodka [1.7K]

Answer:

I think the answer is 138.11 gram

Explanation:

8 0
3 years ago
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