Which of the Following Reactions Describes the Formation of a Molecular

question 71

Multiple Choice

Which of the following reactions describes the formation of a molecular compound of hydrogen?

• A) 2Cs(s)+ H₂(g)\(\to\)2CsH(s)
• B) 2Na(s)+ H₂(g)\(\to\)2NaH(s)
• C) Mg(s)+ H₂(g)\(\to\)MgH₂(s)
• D) S₈(s)+ 8H₂(g)\(\to\) 8H₂S(g)
• E) 2Al(s)+ 3H₂(g)\(\to\) 2AlH₃(s)

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Definitions:

Low Tide

The state of the tide when at its lowest level, typically occurring twice a day, which exposes areas of the seabed that are submerged at high tide.

Thermocline

A layer in a body of water or the atmosphere where temperature changes more rapidly with depth than it does in the layers above or below.

Upper

Generally refers to something that is located above something else or higher in position, order, or rank.

Lower Levels

Refers to the foundational or basic elements in a structure or system, often relating to the base of a hierarchical arrangement.