3 years ago

Please help me with this every time I ask a question on Brainly I never get an answer please.

Chemistry

1 answer:

sveta [45]3 years ago

3 0

The amount of the certain molecule in the brain

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Classify these compounds as acid, base, salt, or other.? 1. ch3oh 3. hno3 5. nabr

ELEN [110]

1. Alcohol(other)
3. Acid
5. Salt

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4 years ago

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The molecular geometry of a molecule describes the three-dimensional shape of just the atoms. This is in contrast to the electro

IrinaVladis [17]

Answer:

trigonal pyramid

Explanation:

$PH_3$

Valence electrons of phosphorus = 5

Valence electrons of hydrogen = 1

The total number of the valence electrons = 5 + 3(1) = 8

The Lewis structure is drawn in such a way that the octet of each atom and duet for the hydrogen in the molecule is complete. So,

The Lewis structure is shown below in the image below.

The central atom , P has 3 bonded pairs of electrons and 1 non bonded.

Number of bond pairs = 3

Number of lone pairs = 1

The formula is $AB_3L$ .

According to VSEPR theory, $PH_3$ has trigonal pyramidal shape to minimize the repulsions.

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3 years ago

What do you notice with your answer

Olegator [25]

Answer:

nothing

Explanation:

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Why does temperature stay constant during a phase change?

Serjik [45]

When a solid is heated , the average kinetic e energy of the substance increases because of which the temperature increases....this heat won’t affect the average kinetic energy of the substance. Since average kinetic energy will remain same during phase change , the temperature will remain same too.
***HOPE THIS HELP YOU***

4 0

3 years ago

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Need this asap, I'll give brainliest.

Sveta_85 [38]

ANSWER

1)4d^10 should be 3d^10

2) 3s^2 is impossible and 3d^5 it should be p not d

3) Ra is not a noble gas

4)Valid

5)Element can’t be its own electron configuration.

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3 years ago