Balance the reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1.
2 answers:
Answer: Option (a) is the correct answer.
Explanation:
The given equation is as follows.
Number of atoms on reactant side are as follows.
- H = 1
- Cl = 1
- Zn = 1
Number of atoms on product side are as follows.
- H = 2
- Zn = 1
- Cl = 2
To balance the equation, multiply HCl by 2 on reactant side. Therefore, the balanced chemical equation is as follows.
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<h3>What is moles?</h3>
Mole, also spelled mol, in chemistry, a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.
The mole designates an extremely large number of units, 6.02214076 × . The General Conference on Weights and Measures defined the mole as this number for the International System of Units (SI) effective from May 20, 2019. The mole was previously defined as the number of atoms determined experimentally to be found in 12 grams of carbon-12.
The number of units in a mole also bears the name Avogadro’s number, or Avogadro’s constant, in honour of the Italian physicist Amedeo Avogadro (1776–1856). Avogadro proposed that equal volumes of gases under the same conditions contain the same number of molecules, a hypothesis that proved useful in determining atomic and molecular weights and which led to the concept of the mole.
Learn more about mole
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