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Phoenix [80]
3 years ago
14

SOMEONE PLEASE HELP ME!

Chemistry
1 answer:
vazorg [7]3 years ago
4 0

Answer:

Both, the comb and the hair are comprised of atoms, which are, on their part, comprised of electrons ( negatively charged particles). When Sandra combs her hair, friction between comb and hair occurs. Since the electrons in hair are more loosely connected to each other than the ones in comb, during this friction some electrons from the hair will be transferred to the comb. Since electrons are negatively charged and the comb now has excess electrons that means that the comb becomes negative and the hair becomes positive ( because it loses negative charge). This friction is responsible for charging the hair and the comb. Finally, when the comb is placed near the hair, hair will move toward the comb since the opposite charges attract.

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What is the name of the compound made from Sn 4+ and PO4 3-?
givi [52]

Answer:

Sn₃(PO₄)₄ - tin(IV) phosphate.

Explanation:

Hope it helps! :)

8 0
3 years ago
What is sandy soil? which crops are suteble to grow in sandy soil
Viktor [21]
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7 0
3 years ago
Read 2 more answers
What is the final pressure (expressed in atm) of a 3.05 l system initially at 724 mm hg and 298 k, that is compressed to a final
krok68 [10]

<u>Answer:</u>

P2 = 778.05 mm Hg = 1.02 atm

<u>Explanation:</u>

We are to find the final pressure (expressed in atm)  of a 3.05 liter system initially at 724 mm hg and 298 K which is compressed to a final volume of 2.60 liter at 273 K.

For this, we would use the equation:

\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}

where P1 = 724 mm hg

V1 = 3.05 L

T1 = 298 K

P2 = ?

V2 = 2.6 L

T2 = 173 K

Substituting the given values in the equation to get:

\frac{(724)(3.05)}{298} =\frac{P_2(2.6)}{173}

P2 = 778.05 mm Hg = 1.02 atm

7 0
3 years ago
1.Ridges, tectonic plate boundaries, and hydrothermal vents are physical features found on our planet. Where are these features
Pepsi [2]

Answer:

1. D

2. A

Explanation: Those are the only ones i know

5 0
3 years ago
It's sunny in New York, but it is cool. Where would you expect to find this lizard during the day? Question 16 options: Under a
cupoosta [38]

It's sunny in new york, but it is cool, we will expect to find lizard under a rock or in a hole in the ground, where temperature is more than outside.

<h3>Why lizards are not comfortable in cold?</h3>

Lizards are not easily survive in the winter season as they are cold blooded animal, so their body will not active in the winter season.

During the winter season or in the cold weather, lizards will go to the places where they feel less cooling. And these places be like inside the rocks, under a hole, under the ground, in the trunks of trees, etc. due to high temperature.

Hence, options (1) and (4) are correct.

To know more about lizards, visit the below link:

brainly.com/question/407800

7 0
3 years ago
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