Ohio Barber License Practice Exam

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Study for the Ohio Barber License Exam. Learn with flashcards and multiple choice questions, each supported with hints and explanations. Prepare thoroughly for your certification!

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Ammonia is a colorless gas composed of which two elements?

  1. Oxygen and Carbon

  2. Hydrogen and Nitrogen

  3. Carbon and Nitrogen

  4. Hydrogen and Oxygen

The correct answer is: Hydrogen and Nitrogen

Ammonia is composed of two elements hydrogen and nitrogen. Oxygen and carbon are not part of the chemical formula and are incorrect choices. Carbon and nitrogen are part of the chemical formula for cyanide, not ammonia. Hydrogen and oxygen make up the compound water, not ammonia. Therefore, the correct answer is B.

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