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andrew-mc [135]
2 years ago
3

Please help me PLEASEEE​

Chemistry
1 answer:
seraphim [82]2 years ago
4 0
2/3 and 5:6 min is the right answer for k13
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Describe uses of H2S as analytical regent
konstantin123 [22]

Answer:

Hydrogen sulfide is used primarily to produce sulfuric acid and sulfur. It is also used to create a variety of inorganic sulfides used to create pesticides, leather, dyes, and pharmaceuticals. Hydrogen sulfide is used to produce heavy water for nuclear power plants (like CANDU reactors specifically).

Explanation:

Sana Po it's help

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3 years ago
Which of these is something whose construction MOST LIKELY would be determined by the government? A) An airport B) A golf club C
Amiraneli [1.4K]

Answer:

I would say an airport

Explanation:

why because it is ran by the government

8 0
3 years ago
Read 2 more answers
What is the volume of 7.50 x 10^24 molecules of NH3 at STP?
Allushta [10]

27.9L

Explanation:

Given parameters:

Number of molecules = 7.5 x 10²⁴molecules

Condition = STP

Unknown:

Volume of gas = ?

Solution;

The volume of gas at STP is expressed below;

 Volume of gas = number of moles x 22.4

Number of moles = \frac{Number of molecules }{6.02 x 10^{23} }

    Now if we can obtain the value of the number of moles from the expression above, we can plug it back into the equation of the volume of gas at STP;

     Number of moles of NH₃ =  \frac{[tex]7.5 x 10^{24} }{6.02 x 10^{23} }[/tex]

   Number of moles of NH₃ = 12.5moles

Volume of gas = 12.5 x 22.4 = 27.9L

learn more:

Volume of gas at STP brainly.com/question/7795301

#learnwithBrainly

3 0
3 years ago
What could change the aquarium system?
Sphinxa [80]

Answer:

Removing the dirty water and replacing with fresh water. also the fish containing in the aquarium change the system of aquarium.

4 0
2 years ago
3. Calculate the molecular or formula mass of each of the following: (a) Pa (c) Ca(NO3)2 (d) CH3CO2H (acetic acid)​
enyata [817]

Answer:

bdejwefbewjf

Explanation:

3 0
3 years ago
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