Answer:
The correct option is: Br₂--------->2 Br(g)
Explanation:
Bond dissociation is a process in which energy is applied to break a chemical bond between the atoms of a molecule to give free atoms.
In the given reaction: Br₂-------->2 Br(g)
The covalent bond in Br₂ molecule dissociates to give two moles of bromine atoms. Therefore, it is a bond dissociation reaction.
Element X is sodium.
If there is one more shell of electrons, then this means it is one period below.
Since there is one less valence electron, it is one group to the left.
Answer:
hunting for other animals or when they are really hungry
Explanation:
Hydrogen is oxidized. The H2 reactant has an oxidation number of 0 because it’s in its elemental form. In the H2O product, H has an oxidation number of +1. The increase in oxidation number is oxidation.
Answer:
2H⁺ + 2e → H₂.
Zn → Zn²⁺ + 2e.
Explanation:
- The reaction includes two half-reactions:
<em>The reduction reaction:</em>
<em>2H⁺ + 2e → H₂.</em>
- 2.0 moles of hydrogen ions is reduced by 2 electrons to produce 1.0 mole of hydrogen gas.
<em>The oxidation reaction:</em>
<em>Zn → Zn²⁺ + 2e.</em>
- 1.0 mole of Zn metal is oxidized to Zn²⁺ and releases 2 electrons.
- <em>The overall reaction will be:</em>
<em>Zn + 2H⁺ → Zn²⁺ + H₂.</em>
