Respuesta :

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Answer:

B) H2O

Explanation:

Compound is a pure substance composed of two or more different atoms chemically bonded to one another. Among all choices only H₂O is composed of two atoms, and other choices are composed of only one atom.  H₂O is the pure substance composed of chemically bonded two atoms (hydrogen atoms and oxygen atom).

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Answer:

H₂O

Explanation:

Compound consists of combinations of elements. H (Hydrogen) is an element. O-16 and H-3 are stable isotopes of O (Oxygen) and H (Hydrogen), which are elements. H₂O is compound formed by two elements: Hydrogen and Oxygen.