Answer:
1 and 2
Explanation:
The given equation is:
Cl₂ + H₂ → 2HCl
A coefficient is the variable or number before a chemical specie.
In this reaction Cl₂ and H₂ are the reactants;
The coefficient of Cl₂ is 1,
H₂ is 1,
HCl is 2
The subscript is the number to the lower power after a chemical specie is denoted.
For Cl₂, it is 2
A number before a chemical atom or molecule is called a coefficient. The coefficient of chlorine is one (1), and its subscript is two (2).
A subscript is a number or symbol written at the bottom right of the chemical atom or the molecule in a compound.
The balanced chemical reaction is shown as:
[tex]\rm Cl_{2} + H_{2} \rightarrow 2HCl[/tex]
The coefficient in chlorine is 1, hydrogen is 1, and hydrochloric acid is 2. The subscript in chlorine gas is 2, and hydrogen gas is 2.
Therefore, the coefficient is 1, and the subscript is 2.
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