What is the formula for ammonium hydroxide?

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Multiple Choice

What is the formula for ammonium hydroxide?

Explanation:
When ammonia dissolves in water, it forms ammonium ions (NH4+) and hydroxide ions (OH−). Chemists use NH4OH as a convenient way to write ammonium hydroxide, representing this combination in solution. The real situation in water is an equilibrium: NH3 + H2O ⇌ NH4+ + OH−, but for a simple formula, NH4OH is the standard way to denote ammonium hydroxide. The other options don’t fit: NH3 is just ammonia, NH4 is the ammonium ion, and NH3OH isn’t a recognized formula.

When ammonia dissolves in water, it forms ammonium ions (NH4+) and hydroxide ions (OH−). Chemists use NH4OH as a convenient way to write ammonium hydroxide, representing this combination in solution. The real situation in water is an equilibrium: NH3 + H2O ⇌ NH4+ + OH−, but for a simple formula, NH4OH is the standard way to denote ammonium hydroxide. The other options don’t fit: NH3 is just ammonia, NH4 is the ammonium ion, and NH3OH isn’t a recognized formula.

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