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3 years ago

What element is in group 17 and period 2 of the periodic table?

Chemistry

1 answer:

Natali [406]3 years ago

3 0

Answer:

Group 17 elements:

Flourine (F), Chlorine (Cl), Bromine (Br), Iodine (I), and Astatine (As).

Period 2 elements:

Lithium (Li), Beryllium (Be), Boron (B), carbon (C), Nitrogen (N), Oxygen (O), flourine (F), And Neon.

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MrRa [10]

Answer:

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Explanation:

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3 years ago

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Which is a chemical property of hydrogen?

koban [17]

The answers this question is A.

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13. How many electrons are transferred in the following reaction? (The reaction is unbalanced.) Fe(s) + I'(aq) 12(s) + Fe3+(aq)

Nat2105 [25]

Answer : The correct option is, (C) 6

Explanation :

Oxidation-reduction reaction : It is a reaction in which oxidation and reduction reaction occur simultaneously.

Oxidation reaction : It is the reaction in which a substance looses its electrons. In this oxidation state increases.

Reduction reaction : It is the reaction in which a substance gains electrons. In this oxidation state decreases.

The given unbalanced chemical reaction is,

$Fe(s)+I^-(aq)\rightarrow I_2(s)+Fe^{3+}(aq)$

Half reactions of oxidation and reduction are :

Oxidation : $Fe(s)\rightarrow Fe^{3+}+3e^-$ ......(1)

Reduction : $2I^-(aq)+2e^-\rightarrow I_2$ .......(2)

In order to balance the electrons, we multiply equation 1 by 2 and equation 2 by 3, we get:

Oxidation : $2Fe(s)\rightarrow 2Fe^{3+}+6e^-$ ......(1)

Reduction : $6I^-(aq)+6e^-\rightarrow 3I_2$ .......(2)

The overall balanced chemical reaction will be:

$2Fe(s)+6I^-(aq)\rightarrow 3I_2(s)+2Fe^{3+}(aq)$

From this reaction we conclude that the electrons are getting transferred from iron to iodine and the number of electrons transferred are 6 electrons.

Hence, the correct option is, (C) 6

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3 years ago

Which of the following statements are correct? More than one answer may be correct.

garri49 [273]

Answer:

E, only one statement is correct

Explanation:

Absorption is favoured by heating the solution containing the colored impurity.

Pleaseee! Mark me brainliest

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2 years ago

No. Of particles in H2SO4 in which 8grams oxygen is present????

steposvetlana [31]

Answer:

Explanation:

Its somewhat hard to comprehend the question, but if the way I read it was right, its 7.

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3 years ago