Which of the following is the correct chemical formula for sodium hydroxide?
A
NaH
B
NaOH
C
NaHO
D
NaO
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1
Understand that sodium hydroxide is a compound made of sodium (Na), hydrogen (H), and oxygen (O) atoms.
Recall that hydroxide is a polyatomic ion with the formula OH⁻, which consists of one oxygen atom bonded to one hydrogen atom.
Since sodium (Na) is a metal that forms a +1 charge ion (Na⁺), it combines with the hydroxide ion (OH⁻) to form a neutral compound.
Combine the sodium ion (Na⁺) with the hydroxide ion (OH⁻) to write the chemical formula as NaOH, ensuring the charges balance to zero.
Verify that the formula NaOH correctly represents sodium hydroxide, with one sodium atom, one oxygen atom, and one hydrogen atom arranged as Na⁺ and OH⁻.