Answer:
The right choice is → a reduction reaction
Explanation:
From the balanced equation
- 3CIO⁻₍aq₎ → CIO⁻ ₍aq₎ + 2Cl⁻ ₍aq₎
we can calculate the change in oxidation number of Cl in reactant and product
in reactant ClO⁻
let x= oxidation number of Cl
and oxidation number of oxygen in its compound is (-2)
and the total charge on the ClO⁻ ion = -1
- ∴x + (-2) = -1 →→→ x = +1
in product Cl⁻
let x= oxidation number of Cl
and the total charge on the Cl⁻ ion = -1
so the oxidation number of Cl decreases from +1 in reactant to -1 in product so it is reduction reaction.
But, disproportionation reaction is defined as the chemical reaction in which a single substance gets reduced as well as oxidized.
For a disproportionated substance , it should contain at least three oxidation states. which isn't the case here.
<u>So, the right choice is: </u>
→ a reduction reaction
<u>Answer:</u> The correct option is B. elements.
<u>Explanation:</u>
A chemical compound is defined as the specie which is formed by the combination of two or more elements. For example: Water, carbon dioxide, etc..
Elements is defined as the chemical specie which consists of only one type of atom. For example: Hydrogen, Oxygen, etc..
Now, when hydrogen element and bromine element combines, it leads to the formation of a heteronuclear chemical compound known as hydrogen bromide having chemical formula HBr.
Hence, the correct option is B. elements.
Answer:
has 17 electrons
Explanation:
Chlorine is a halogen that belongs to the 17th group on the periodic table. Chlorine has an atomic number of 17. The atomic number of elements is used in placing and locating elements on the periodic table. In fact, the periodic arrangements of elements is as a result of their atomic numbers.
The atomic number is the number of protons in an atom. This number is the same as the number of electrons in a neutral atom that has not gained or lost any electron.
It is correct to say chlorine has 17 electrons and they occupy 3 electronic shells.
The product formed when Ag2O decompose is O2 ( answer c)
explanation
Decomposition involve separation of a single chemical compound into two ore more elemental parts Ag2O decomposes to yield Ag and O2
that is 2Ag2O→ 4Ag + O2
2 moles of Ag2O decomposes to yield 4 moles of Ag and 1 mole of O2
Your answer is going to be 200g