Blackboard with the chemical formula of Benzene
Schlüsselwörter
gasoline,
flammable,
oil,
ring,
benzene,
carbon,
organic,
blackboard,
chalk,
text,
signs,
write,
blackboard,
scripture,
handwriting,
letter,
lettering,
dark background,
written,
black,
illustration,
chemistry,
science,
drawing,
writing,
chemical,
formula,
molecular,
structure,
graphic,
structural,
scientific,
symbol,
element,
molecular,
abstract,
technology,
research,
pattern
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