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Which chemical equation models the law of conservation of mass?
A. 3KOH + H3PO4 - K3PO4 + 3H20
B. 2KOH + H3PO4 - K3PO4 + 2H20
C. 3KOH + 2H3PO4 - 2K3PO4 + 3H20
D. KOH + H3PO4 - K3PO4.

Sagot :

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Answer:

A) 3KOH + H3PO4 - K3PO4 + 3H20

Explanation:

A.P.E.X

The Law of conservation of mass states the creation and destruction of mass to be impossible. The reaction between 3 moles of Potassium hydroxide and Phosphoric acid is conserved.

What is conservational mass?

The law of mass of conservation states that the mass of the reactants and the products of the reaction cannot be added or removed.

In the first reaction, the mass of the atoms in the reaction is balanced, while in the second reaction the mass of potassium and hydrogen is not balanced.

In the third and fourth reactions, the mass of the elements is not balanced and not conserved hence not following the law.

Therefore, option A. [tex]\rm 3KOH + H_{3}PO_{4} \rightarrow K_{3}PO_{4} + 3H_{2}O[/tex] follows the law of conservation of mass.

Learn more about the law of conservation mass here:

https://brainly.com/question/13383562

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