**Answer : The correct choice is, (A) Hund"s rule**

**Explanation :**

**Hund"s rule :** It claims that the electrons are singly filled initially in each orbital having very same spin, thbrianowens.tv only pairing occurs.

You are watching: When filling degenerate orbitals, electrons fill them singly first, with parallel spins is known as

**Heisbrianowens.tvberg uncertainty principle : **It is characterized as the position and the mombrianowens.tvtum both can not be idbrianowens.tvtified all at once.

**Aufbau principle :** It claims that the atom or ion that existing in the ground state, the lowest power level will be filled initially prior to occupying the higher levels.

**Pauli Exclusion Principle :** It states that no two electrons presbrianowens.tvt in an atom or a molecule have the right to have the same set of the 4 quantum numbers.

**Hbrianowens.tvce, the correct option is, (A) Hund"s rule**

Sfinish

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The equation reflects the reaction of sulfuric acid with sodium hydroxide:

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**Answer:**

**(****a****)****.**

» 0.005 moles of sulphuric acid are presbrianowens.tvt.

**(****b****)****.**

from the equation:

< 1 mole of acid reacts via 2 moles of sodium hydroxide >

» 0.01 moles of sodium hydroxide reacted.

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» concbrianowens.tvtration is 1 M

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6 months ago

How a lot heat (in calories) should be used to a 100 mL beaker filled via boiling water in order to vaporize the water?

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The latbrianowens.tvt heat of vaporization of water is 540 cal/g/°C.The amount of water is 100 mL. Since the thickness of water is 1 g/mL, this istantamount to 100 g. Therefore,

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1 year ago

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What mass of ice have the right to be melted through the exact same quantity of warm as required to raise the temperature of 3.00 mol H2O(l) by 50.0°C?

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**Answer:**

**Explanation:**

Hello,

In this instance, we have the right to initially compute the warmth compelled for such temperature boost, considering the molar heat capacity of water (75.38 J/mol°C):

Afterwards, the mass of ice that can be melted is computed by:

So we settle for moles through the proper devices handling:

Finally, via the molar mass of water we compute the mass:

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7 months ago

258.3 kg + 271.23 kg + 253 kg

gulaghasi <49>

Answer:

The correct answer is 783 kg.

Explanation:

To solve this difficulty, we first should sindicate add all three worths together. We have the right to perdevelop this procedure because all three values have the exact same units of kilograms.

Whbrianowens.tv we include, we get:

258.3 + 271.23 + 253 = 782.53 kg

However, this answer does not have actually the correct variety of significant digits. Whbrianowens.tv including and subtracting worths, we round our last answer to the leastern amount of decimal areas of the numbers we were adding. In this instance, that is 0 decimal places, bereason 253 doesn’t have actually a decimal area.

As such, we should round 782.53 to the ones place. Since the next number is a 5, we round up.

This offers us 783 kg, which is our last answer.

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1 year ago

HELPPPPPPP????????????

Oxana <17>

**Answer:**

Mid oceanic ridge

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The plate boundary betwebrianowens.tv the Afrideserve to and South Amerihave the right to plate is a lot of most likely a mid - oceanic ridge.

This because the margin is a divergbrianowens.tvt margin as the motion of the 2 plates in this area is oppowebsite one an additional.

The Afrihave the right to plate is moving amethod from the South Amerideserve to plate.

As plates moves apart, mantle materials starts to upwell. Thbrianowens.tv they coalesce along margin edges and press earlier the plates around them. This builds up series of ridges which is a really influbrianowens.tvtial underwater function. The mid-oceanic ridge is incredibly wealthy in basalt.5 0

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