The Top 4 Substances Used by U

question 122

Multiple Choice

The top 4 substances used by U.S. youth are tobacco, alcohol, marijuana, and

• A) inhalants.
• B) cocaine.
• C) LSD.
• D) methamphetamine.

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Definitions:

Hydrogen

A chemical element with the symbol H and atomic number 1, it is the lightest and most abundant chemical substance in the universe.

Oxygen

A chemical element (symbol O) with atomic number 8, essential for most forms of life and crucial in combustion processes.

Limiting Reactant

The reactant in a chemical reaction that is completely consumed first, limiting the amount of product that can be formed.

NaOH

Sodium hydroxide, a strong base used in the manufacture of soap, paper, and many other chemicals; it is highly caustic.