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RSB [31]
3 years ago
10

Why phosphorus forms 3 bonds in molecule such as PH3 and PCl3-

Chemistry
2 answers:
gregori [183]3 years ago
6 0
Phosphorous has three lone electrons that need pairing. Similar to how carbon has 4 lone electrons, and forms CH4
antoniya [11.8K]3 years ago
4 0

Answer:

The 3p orbital of the element will be completely filled if it forms 3 bonds with other atoms.

Explanation:

Phosphorus is a element of 15 group and 3 period.

The electronic configuration of the phosphorous is:

1s²2s²2p⁶3s²3p³

<u>The 3p orbital of phosphorous is singly filled by 3 electrons and if it shares more 3 electrons with other atom, its valence shell will be completely filled which makes it more stable. Hence, phosphorus makes 3 bonds like in PH₃ and PCl₃ .</u>

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Ice must absorb heat to melt into water. What must water do to evaporate?
Flauer [41]
Increase in heat, molecules start to escape and it turns to vapor
3 0
3 years ago
Read 2 more answers
A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next fe
Inga [223]

Answer:

The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down.

Explanation:

As molecules heat they begin to move faster. The heat from the metal plate will make the molecules at room temperature move faster. And the room temperature makes the hot place cool, making the hot plate molecules slow down.

To visualize this, you can use this link

https://phet.colorado.edu/en/simulations/gas-properties

click the play button to activate the activity

7 0
2 years ago
Gizmo Warm-up
Mariana [72]

Sodium hydroxide solution and hydrogen gas are produced from the reaction of water and sodium.

<h2>Reaction of sodium and water</h2>

We observe bubbles coming out of the water when the sodium reacts with the water because of the formation of hydrogen gas which is insoluble in water so it moves into the atmosphere.

<h3>Products of the reaction</h3>

Sodium metal reacts rapidly with water to form sodium hydroxide (NaOH) solution and hydrogen gas (H2). This chemical reaction is exothermic because huge amount of heat is release from the solution so we can conclude that sodium hydroxide solution and hydrogen gas are produced from the reaction of water and sodium.

Learn more about chemical reaction here: brainly.com/question/26018275

Learn more: brainly.com/question/26167984

8 0
2 years ago
Give the postional isomers of 2 halopropane<br>(CH3)2CH​
s344n2d4d5 [400]

Give the positional isomers of 2 halopropane

(CH3)2CH​

answer:

    is in file download it

6 0
2 years ago
The gene for tallness (T) in a pea plant is dominant over the gene for shortness (t).
astra-53 [7]

Answer:

C. 75%

Explanation:

From a heterozygous cross (Tt x Tt) the produced offspring would consist of:

  • 25% TT -it would be tall-.
  • 50% Tt -it would be tall as the gene T is dominant-.
  • 25% tt -it would not be tall-.

Thus the produced offspring that would be tall is (50% + 25%) 75%. The answer is option C.

6 0
2 years ago
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