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Fynjy0 [20]
3 years ago
7

A 1.0 M H2S solution has a pH = 3.75 at equilibrium. What is the value of Ka?

Chemistry
2 answers:
MrRa [10]3 years ago
7 0
The answer is 3.16*10-8
Lelechka [254]3 years ago
6 0
The answer is A, for help I watched some khan academy vids, they're very helpful
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What do you think is the most important element and why? Include information
Snowcat [4.5K]

Answer:

Hydrogen

Explanation:

It is considered a special element due to its flexibility in giving up & taking in electrons, therefore making it good for organic & inorganic chemistry. Hydrogen has only one proton and one electron and is the only element which has no neutrons. it is considered as the simplest element in the universe and gives a valid reason for it to be the most abundant and common element in the universe.

Hoped this helped! If this doesn't fit your 80 word count, you could shorten it.

5 0
3 years ago
Name two geologic features found on Earth surface that were caused by the movement of crustal plates.
My name is Ann [436]
Formation of mountains by one continental plate moving into another (Indian plate pushing north, forming the Himalayas)

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7 0
3 years ago
Read 2 more answers
A series circuit has two 5.0-ohm resistors and a power source of 9.0 volts. How will the current be affected and what will it be
miskamm [114]
The formula for solving current given with resistance and power source or voltage is shown below:
I = V/R  

When two 5 ohms resistors are in series, we have:
I = 9 volts / (5+5 ohms)
I = 0.9 amperes

When it is being added with another 7.5 resistors, we have:
I = 9 volts / (5+5+7.5 ohms)
I = 0.529 ampere

The answer to the question is the letter "D. decrease; 0.51 amps".
3 0
3 years ago
Help me answer this please
Vlada [557]
<span>1=H, 2=B, 3=F, 4=A,5=C,6=E, 7=D, 8=G
</span>9: 69Ga=60.12% and 71Ga=39.88%; total=69.797amu
10: 27  27.977  92.23; 28  28.976  4.67; 29  29.974  3.10; abundance =28.07 Silicon

I hope this helps!
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3 years ago
Draw the Lewis structure for NF3. What orbitals on N and F overlap to form bonds between these elements
jonny [76]
Is there a picture ????????????
4 0
2 years ago
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