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3 years ago

Calcium magnesium potassium and sodium are all electrolytes true or false

Chemistry

2 answers:

olasank [31]3 years ago

6 0

<span>Calcium magnesium potassium and sodium are all electrolytes - TRUE</span>

Gnesinka [82]3 years ago

4 0

Answer:

False

Explanation:

Calcium, magnesium, potassium and sodium are metals. Metals can only serve as electrodes. The solution of metals are electrolytes. All the listed metals form solutions which are good electrolytes.

Hence the pure metal is not an electrolyte but a metal solution (usually a metal salt solution) is an electrolyte.

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EastWind [94]

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weqwewe [10]

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4 years ago

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aev [14]

Answer:

True

Explanation:

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3 years ago

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He developed and proposed a theory about evolution

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3 years ago

Scandium forms the ion Sc3+. How many bromite ions could bind with Sc3t, and what would be the chemical formula?

ser-zykov [4K]

Answer: 3 bromite ions will bind with $Sc^{3+}$ and the chemical formula will be $Sc(BrO_2)_3$ .

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here scandium is having an oxidation state of +3 called as $Sc^{3+}$ cation and bromite is an anion with oxidation state of -1 called as $BrO_2^-$ . Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral $Sc(BrO_2)_3$ .

Thus 3 bromite ions will bind with $Sc^{3+}$ and the chemical formula will be $Sc(BrO_2)_3$ .

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4 years ago