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This NOT an element, but an organic compound.

CH2O is the empirical/molecular formula for methanal , formerly known as formaldehyde.

Methanal is a member of the homologous series known as aldehydes. the chemical formula for aldehydes is ALWAYS written as XCHO. Hence for methanal it is HCHO NOT CH2O

NB Note the 'A' in the name.

NNB Ethanal formula is CH3CHO

NNNB An element is a quantity/mass of the atom. Two or more atoms combined make a compound.

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lenpollock

Lvl 17
1y ago

What else can I help you with?