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Setler [38]
3 years ago
7

Which three elements seem to make up so much of the world around us?​

Chemistry
1 answer:
erma4kov [3.2K]3 years ago
7 0

Answer:

aw awe fr

Explanation:

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Which substance is an electrolyte? A) O2 B) Xe C) C3H8 D) KNO3
mixer [17]
Answer:
            KNO₃ is an electrolyte.

Explanation:
                   Electrolyte is any specie which when dissolved in water produces a cation and anoin. Electrolytes has the ability to conduct electricity. In given options O₂, Xe and C₃H₈ are non electrolytes because they cannot dissociate into cation and an anion due to their covalent bonds or monoatomic nature. The dissociation of Potassium Nitrate is as follow,

                                       KNO₃    →   K⁺ ₍aq₎  +  NO₃⁻ ₍aq₎
6 0
3 years ago
SO2 + H2O = H2SO3 and not H2SO4?
kramer
It's because the Law of Conservation of Mass WILL NOT be followed if, from SO2 and water, sulfuric acid is formed. Making a balanced chemical reaction is not possible, no matter what you do. To obtain or make sulfuric acid, SO2 still needs to be oxidized further to SO3.
6 0
3 years ago
How many atoms are in 0.0303 mol K?
Inga [223]
1.661x10 negative 24 squared
8 0
3 years ago
C3H8 + 2O2 → <br> I don’t known what this equation reacts to make
djyliett [7]
It is a combustion reaction. C3H8 will react with oxygen to form carbon dioxide and water.
8 0
3 years ago
An isotope of iron has 28 neutrons. If the atomic mass of the isotope is 54, how many protons does it have?
Crazy boy [7]
26 because you need to do 54-28=26
The atomic mass number is the number of protons AND neutrons together.
5 0
3 years ago
Read 2 more answers
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