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Finger [1]
2 years ago
5

How was potassium discovered?​

Chemistry
2 answers:
BaLLatris [955]2 years ago
6 0

Answer:

Potassium was the first metal to be isolated by electrolysis. It was discovered by the  English chemist Sir Humphry Davy by decomposing molten potassium hydroxide (KOH) with a voltaic battery.

Explanation:

Serhud [2]2 years ago
3 0

Potassium was discovered by the English chemist Sir Humphrey Davy.

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Why do ionic compounds have high melting points?
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These oppositely charged compounds are strongly held by electrostatic forces of attraction as these be together for a long time the rise in temparature occurs so that the the melting points rises in them.
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3 years ago
In a chemical reaction how does the mass of the reactants compare with the mass of the products?
Juli2301 [7.4K]

Answer:

The mass of the reactants compared with the mass of the products should be the same if the reactants are in stoichiometric amounts.

Explanation:

In this question, they ask about chemical reactions and the comparison of the mass of reactants and products. Firstly, it is necessary to introduce the mass conservation principle.

Mass conservation principle mentions that in a chemical reaction, the total mass of reactants is equal to the total mass of products (if the reaction is fully developed). It means mass is not created or destroyed, only transforms from reactants to products.

For example, the mass of sodium plus the mass of chlorine that reactswith the sodium equals the mass of the product sodium chloride.Because atoms are only rearranged in a chemical reaction, there mustbe the same number of sodium atoms and chlorine atoms in both thereactants and products.

Finally, we can conclude that The mass of the reactants compared with the mass of the products should be the same if the reactants are in stoichiometric amounts. 

6 0
2 years ago
Every Sunday, Sarah prepares blue fruit punch to
MrRissso [65]

Answer:

Fruit punch with a very dark blue color

Explanation:

8 0
3 years ago
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Answer:

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4 0
2 years ago
Which of the following is a precipitation reaction?
erik [133]

Answer:

The precipitated are option a and d.

Explanation:

2 LiI(aq) +Hg2(NO3)2(aq)  →  Hg2I2(s) ↓ + 2 LiNO3(aq)

Cation Hg2+ 2 in the presence of iodide,  a precipitated  is formed.

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Zinc starts to get rid, and some white particles also stick to it. Afterwards the solution becomes cloudy and a precipitate appears, which is the solid silver

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3 years ago
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