Hydrogen gas (H₂) and oxygen gas (O₂) react to form liquid hydrogen peroxide (H₂O₂). Which statement is true about the reaction?
A. The same atoms are present, so the chemical properties are the same.
B. The atoms of the reactants have combined to form a new substance.
C. The product that is formed has the same physical properties as the reactants.
D. The two gases have mixed together, but a new substance has not formed.
Answer (3)
The answer is the atoms of the reactants have combined to form a new substance. Every product of a chemical equation has to be a new substance. If their is no new substance then, a chemical change never occurred and there is no chemical equation. The new substance never has the same properties as the reactants. That's why they call it a "new" substance. Also, the atoms are the ones that combine. They are not mixed
The atoms combine to form a new substance.
The correct statement regarding the reaction of hydrogen gas and oxygen gas to form hydrogen peroxide is option B: The atoms of the reactants have combined to form a new substance. This reflects the fundamental nature of a chemical reaction, where reactants transform into products with distinct properties. Each side of the reaction involves different chemical entities, confirming that a new substance is indeed formed.
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