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2 years ago

Carbon dioxide is released into the atmosphere by _____.

Chemistry

1 answer:

kirill115 [55]2 years ago

3 0

Answer:

4 a minor but very important component of the atmosphere corban dioxide is released through natural processes such as reputation.;

Explanation:

a minor but very important component of the atmosphere corban dioxide is released through natural processes such as reputation

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What is the ph of a solution of 0.550 m k2hpo4, potassium hydrogen phosphate?

Solnce55 [7]

We assume that we have Ka= 4.2x10^-13 (missing in the question)
and when we have this equation:
H2PO4 (-) → H+ + HPO4-
and form the Ka equation we can get [H+]:
Ka= [H+] [HPO4-] / [H2PO4] and we have Ka= 4.2x10^-13 & [H2PO4-] = 0.55m
by substitution:
4.2x10^-13 = (z)(z)/ 0.55
z^2 = 2.31x 10^-13
z= 4.81x10^-7
∴[H+] = 4.81x10^-7
when PH equation is:

PH= -㏒[H+]
= -㏒(4.81x10^-7) = 6.32

3 0

3 years ago

HELP PLEASEEEEEEEEEEEEEEEEEE I CANT GO CANRVIL IF I CANT PASS THIS THEY WANNA SEE MY GRADES AND THIS WILL HELP ME GET MY GRADES

Daniel [21]

Answer:

3,3453 thank me later

Explanation:

1,3433

4 0

3 years ago

___________tiny solid particles in interstellar space thought to consist of a core of rocklike material (silicates) or graphite

crimeas [40]

Answer:

Interstellar medium

Explanation:

The interstellar medium (ISM) is the matter and radiation that exists in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays.

5 0

3 years ago

Where, approximately, is the negative pole on each of these molecules?

Leni [432]

Orbital shell notation of fluorine is 2. 7 while that of oxygen s 2. 6. This means that these elements (that follow each other in the periodic table) will have high electronegativity in molecules due to their high atomic number (which causes them to strongly attract electron orbital shell closer to their nucleus). NB: Atomic number of a peroid increased from left to right of the periodic table.

Therefore, in the first molecule, the negative dipole would most likely be located between the F atoms In the second molecule the negative molecule would be most likely located in the between the O and F atoms.

5 0

3 years ago

Read 2 more answers

Describe the particles of a solid, liquid, and gas. For each, be sure to tell how far apart they are and how fast or slowly they

Art [367]

Answer:

Solid

A solid is a state of matter where the particles are tightly packed together, they are very close together

They vibrate, they move very slowly

Liquid

A liquid has free-flowing particles, but they may not leave the container
They move at medium speed

Gas

A gas moves very freely, they leave the container, and they may not be captured in its entirety
It moves very fast because it is heated

Hope this helps :)

- jp524

3 0

2 years ago