How many single covalent bonds must a fluorine atom form to have a complete octet in its valence shell?

1 answer:

7 0

The answer to this question would be: 1

Fluorine is a nonmetal element that was located in the group 7 of the periodic table. Fluorine has 7 valence electron, only need 1 electron left to makes it fulfills the octet rule of 8 valence electron. One covalent bond should give fluorine the 1 electron it needs so the answer would be 1.

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I need help with the first question

gregori [183]

Zn⁰ ----> Zn⁺² + 2e⁻ - oxidation
Hg⁺² + 2e⁻ ----> Hg⁰ - reduction

Zn loses 2 moles of electrons , and Hg gains 2 mole of electrons.
So, number of moles of electrons gained and lost during reaction is equal.

7 0

3 years ago

Equation balancing

meriva

Answer:

For a: The balanced equation is $2S(s)+3O_2(g)\rightarrow 2SO_3(g)$

For c: The balanced equation is $2NaOH(s)+H_2SO_4(aq)\rightarrow Na_2SO_4(aq)+2H_2O(l)$

Explanation:

A balanced chemical equation is one where all the individual atoms are equal on both sides of the reaction. It follows the law of conservation of mass.