Rock the Red Seal Cosmetology Exam 2025 – Style Your Future with Confidence!

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What does 'H' stand for in COHNS?

Hydrogen

'H' stands for Hydrogen in COHNS.

Hydrogen is typically the first element listed in chemical formulas and is the lightest and most abundant element in the universe.

A Hydrogen is the correct answer as it is the only element that starts with the letter 'H' that is included in the acronym COHNS.

B: Helium is incorrect as it does not start with the letter 'H' like COHNS suggests.

C: Hafnium is incorrect as it starts with an 'H' but is not the first element listed in the chemical formula.

D: Hassium is incorrect as it does start with the letter 'H' but is not commonly used or included in the COHNS acronym.

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Helium

Hafnium

Hassium

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