Chemistry, 14.09.2019 08:20 Dweath50

For the balanced equationlatex: 2li\left(s\right)\: +\: 2h_2o\left(l\right)\: \longrightarrow\: 2lioh\left(aq\right)\: +\: h_2\left(g\right)identify what is:
oxidized
reduced
oxidizing agent
reducing agent

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Answer from: terrickaimani

Lithium is getting oxidized and is a reducing agent. Hydrogen is getting reduced and is oxidizing agent.

Explanation:

Oxidation reaction is defined as the reaction in which an atom looses its electrons. Here, oxidation state of the atom increases.

$X\rightarrow X^{n+}+ne^-$

Reduction reaction is defined as the reaction in which an atom gains electrons. Here, the oxidation state of the atom decreases.

$X^{n+}+ne^-\rightarrow X$

Oxidizing agents are defined as the agents which oxidize other substance and itself gets reduced. These agents undergoes reduction reactions.

Reducing agents are defined as the agents which reduces the other substance and itself gets oxidized. These agents undergoes reduction reactions.

For the given chemical reaction:

$2Li(s)+2H_2O(l)\rightarrow 2LiOH(aq.)+H_2(g)$

The half reactions for the above reaction are:

Oxidation half reaction: $2Li(s)\rightarrow 2Li^{+}(aq.)+2e^-$

Reduction half reaction: $2H^(aq.)+2e^-\rightarrow H_2(g)$

From the above reactions, lithium is loosing its electrons. Thus, it is getting oxidized and is considered as a reducing agent.

Hydrogen is gaining electrons and thus is getting reduced and is considered as an oxidizing agent.

Answer from: Quest

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence, the electronegativity (or the ability to attract electrons) is lessened."

Answer from: Quest

each column of the table is called a group. elements in a group share similar properties. groups are read from top to bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o. 2. 3. 4. 5. 6. 7. 8. 9. 2. beryllium. 9.012. 4. sodium. 22.990. 11. 3. magnesium. 24.305. 12. potassium. 39.098. 19. 4. calcium. 40.078. 20. i guess i

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For the balanced equationlatex: 2li\left(s\right)\: +\: 2h_2o\left(l\right)\: \longrightarrow\: 2li...

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