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-BARSIC- [3]
3 years ago
14

Hydrogen peroxide (h​2​o​2​) decomposes according to the equation:h​2​o​2​(​l​) ​⇆​ h​2​o(​l​) + ½ o​2​(​g​)calculate k​p​ for t

his reaction at 25°c. (δh° = –98.2 kj/mol, δs° = 70.1 j/k·mol)

Chemistry
1 answer:
goldenfox [79]3 years ago
6 0
Hello! Let me try to answer this :)

Thanks and please correct if there are any mistakes ^ ^

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Gold atoms can be identified based on the number of which subatomic particles?
sp2606 [1]

Answer: A

Explanation:

A Gold (Au) atom has 79 protons and 79 electrons. A typical gold atom has 118 neutrons, though there are 18 other radioisotopes discovered so far. 79 is its charge (atomic number), which is both its proton number and electron number

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Which celestial object is found in kuiper belt
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4 years ago
Covalent bonds take place between..
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Answer:

Covalent Bonds are formed when two non-metals share electrons

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3 years ago
What is the pH of a solution made by mixing 200 mL of 0.025M HCl and 150 mL of 0.050 M HCl?
seraphim [82]

Answer:

The answer to your question is pH = 1.45  

Explanation:

Data

pH = ?

Volume 1 = 200 ml

[HCl] 1 = 0.025 M

Volume 2 = 150 ml

[HCl] 2 = 0.050 M

Process

1.- Calculate the number of moles of each solution

Solution 1

                Molarity = moles / volume

-Solve for moles

                moles = 0.025 x 0.2

result

               moles = 0.005

Solution 2

               moles = 0.050 x 0.15

-result

                moles = 0.0075

2.- Sum up the number of moles

Total moles = 0.005 + 0.0075

                   = 0.0125

3.- Sum up the volume

total volume = 200 + 150

                     350 ml or 0.35 l

4.- Calculate the final concentration

Molarity = 0.0125 / 0.35

              = 0.0357

5.- Calculate the pH

pH = -log [H⁺]

-Substitution

pH = -log[0.0357]

-Result

pH = 1.45    

8 0
3 years ago
1.What are pollen grain? 2. what is an embryo?<br>​
swat32

Answer: 2= baby being developed= embryo 1 i dont know sorry

Explanation:

3 0
4 years ago
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