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Naily [24]
2 years ago
13

What contributes to the polarity of a water molecule

Chemistry
2 answers:
valentina_108 [34]2 years ago
6 0

Answer:

Polarity of a Water Molecule Water (H 2 O) is polar because of the bent shape of the molecule. The shape means most of the negative charge from the oxygen on side of the molecule and the positive charge of the hydrogen atoms is on the other side of the molecule. This is an example of polar covalent chemical bondin

Explanation:

The Polarity contributes with this other smart stuff.

lana66690 [7]2 years ago
3 0

Answer:due to difference in electronegativty between combining element that is hydrogen which has(2.2) and oxygen (3.44) which form water on combination

Also present of unpaired electrons in oxygen contribute to non zero depole moment(bent shape result)

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Write 0.00000009345 in Engineering Notation with 3 significant figures
melisa1 [442]

Answer:

93.43\times 10^{-9}

Explanation:

Scientific notation is the way of writing numbers which are either large or small. The number is written in the scientific notation when the number is between 1 and 10 and then multiplied by the power of 10. Engineering notation is the same version of the scientific notation but the number can be between 1 and 1000 and in this exponent of the ten is divisible by three.

For example, 1000^2 is to be written as 10^6 in engineering notation.

The given number:

0.00000009345 can be written as 93.425\times 10^{-9}

Answer upto 4 significant digits = 93.43\times 10^{-9}

6 0
2 years ago
Why does nitric oxide (no) act as a paracrine signal that affects only neighboring cells?
VMariaS [17]

The correct answer is due to rapid conversion of nitrates into nirites in extracellular fluids.

Due to the fact that it is quickly transformed to nitrates and nitrites in the extracellular fluid, nitric oxide (NO) functions as a paracrine signal that only impacts nearby cells. Because it relaxes the smooth muscle cells in blood vessel walls, nitric oxide (NO) causes blood vessels to widen. Cell signaling is a type of cellular communication in which a cell produces a signal to cause changes in neighboring cells, changing the behavior of those cells. Paracrine signaling is one type of cell signaling. Responses to allergens, tissue repair, the development of scar tissue, and blood clotting are a few examples of paracrine signaling. The transmission of signals through synapses between nerve cells is known as paracrine signaling.

Learn more about paracrine signal here :-

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5 0
1 year ago
Match these items with their examples.
postnew [5]
Salt=compound, soda=liquid solution, aluminum foil=element, milk=colloid,
steel=solid solution
8 0
3 years ago
Read 2 more answers
2. What pressure is required to compress 196.0 L of air at 1.00 atmosphere into a cylinder
damaskus [11]

Answer:

<h2>7.54 atm </h2>

Explanation:

The required pressure can be found by using the formula for Boyle's law which is

P_2 =  \frac{P_1V_1}{V_2}  \\

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

From the question we have

P_2 =  \frac{1 \times 196}{26}  =  \frac{196}{26}   \\ = 7.538461...

We have the final answer as

<h3>7.54 atm </h3>

Hope this helps you

3 0
2 years ago
Calculate the number of neutrons in potassium-40.
dsp73

Answer:

21 neutrons

Explanation:

There are 21 neutrons in Pottasium-40

5 0
3 years ago
Read 2 more answers
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