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3 years ago

How does the sky appear blue? (BONUS QUESTION)!!!!

Chemistry

2 answers:

crimeas [40]3 years ago

6 0

This was an answer i found on google from Nasa

laiz [17]3 years ago

5 0

The light in the sky appear blue because the retina in our eye gives us the ability to see by working with the brain to connect the dots which gives us color vision. Along with that on cloudy days the sky can appear gray- this is because of the precipitation mix.

please vote my answer brainliest. thanks!

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What is element Na in a periodic table

Bess [88]

Answer:

Sodium.

Explanation:

Sodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is ²³Na.

7 0

3 years ago

Read 2 more answers

Neutral grain spirit is essentially the same as

Dennis_Churaev [7]

The neutral grain spirit is essentially known as rectified spirits or ethyl alcohol.

<h3>Meaning of neutral grain spirit</h3>

neutral grain spirit can be defined as raw material that is very concentrated with alcohol used to produce strong alcoholic products.

neutral grain spirit as the name implies is neutral in nature that is it can be blended with any other alcoholic product.

In conclusion, The neutral grain spirit is essentially known as rectified spirits or ethyl alcohol.

Learn more about ethyl alcohol: brainly.com/question/1049383

#SPJ11

5 0

2 years ago

What is the ph of a solution labeled .30 trimethylamine k for trimethylamine is 7.42 x 10^4

valentina_108 [34]

Answer:the pH is 12

Explanation:

First We need to understand the structure of trimethylamine

Due to the grades of the bond in the nitrogen with a hybridization sp3 is 108° approximately, then is generated a dipole magnetic at the upper side of the nitrogen, this dipole magnetic going to attract a hydrogen molecule of the water making the water more alkaline

C3H9N+ H2O --> C3H9NH + OH-

$k=\frac{[C3H9NH]*[OH-]}{[C3H9N]}$

Then:

The concentration of the trimethylamine is 0.3 and the concentration of the ion C3H9NH is equal to the OH- relying on the stoichiometric equation. We could find the concentration of the OH- ion with the square root of the multiplication between k and the concentration of trimethylamine

[OH-]= $\sqrt{ 0.3*7.42x10^{-4}}$

[OH-]=0.01

pH=14-(-log[OH-])

pH=12

5 0

3 years ago

Which energy transformation takes place in a gasoline lawn mower?

fenix001 [56]

Hey there!!

A lawn mower works by converting chemical energy (energy stored in the gas) to mechanical energy.

Hope this helps you and have a great day!!!! I wish you the best of luck (:

6 0

3 years ago

Read 2 more answers

In a titration of hno3, you add a few drops of phenolphthalein indicator to 50.00 ml of acid in a flask. You quickly add 20.00 m

bekas [8.4K]

Answer:

The HNO3 solution has a concentration of 0.07 M

Explanation:

<u>Step 1:</u> find a balanced equation

HNO3 (aq) + NaOH (aq) → NaNO3 (aq) + H2O (l)

⇒ for 1 mole of HNO3 reacted, there will also react 1 mole of NaOH, and be produced 1 mole of NaNO3 and 1 mole of H2O, since the ratio is 1:1

<u>Step 2:</u> Calculating moles

Since we know that for 1 mole of HNO3 there will react 1 mole of NaOH, we can calculate the number of moleNaOH

⇒ Concentration = mole / volume

⇒ 0.210 = mole / ((20 + 7.23 ml) *10^-3)

mole = 0.005733 mole NaOH = 0.005733 mole HNO3

<u>Step 3:</u> Calculating the concentration of HNO3

Concentration = mole / volume

C(HNO3) = 0.005733 mole / ((50 + 30 ml) *10^-3)

C(HNO3) = 0.07 M

The HNO3 solution has a concentration of 0.07 M

To control this we can calculate through the following formule:

0.02723L x 0.21 M x ( 1mol HNO3 / 1 mol NaOH) x (1/ 0.08L) = 0.07M

8 0

3 years ago