chemical formula
Subscripts indicate atom ratios. This topic is part of Chemistry within Science & Nature. This page currently draws on 14 supporting questions, with answers and bonus facts available below.
chemical formula trivia questions
A chemical formula shows which elements and what else in a substance?
Answer: Their relative numbers
Bonus fact: Subscripts indicate atom ratios.
In CO2, what does the subscript 2 indicate?
Answer: Two oxygen atoms
Bonus fact: No subscript after C implies one carbon atom.
What is the chemical formula for ammonia?
Answer: NH3
Bonus fact: An ammonia molecule contains one nitrogen atom and three hydrogen atoms.
What common mineral crystal has the chemical formula SiO2?
Answer: Quartz
Bonus fact: Quartz is crystalline silicon dioxide.
What is the chemical formula of glucose?
Answer: C6H12O6
Bonus fact: Glucose contains six carbon atoms.
What is the chemical formula of acetylene?
Answer: C2H2
Bonus fact: Acetylene is the simplest alkyne.
What is the chemical formula of the ammonium ion?
Answer: NH4+
Bonus fact: Ammonium forms when ammonia gains a proton.
What is the chemical formula for carbon dioxide?
Answer: CO2
Bonus fact: Each molecule has one carbon and two oxygen atoms.
What is the chemical formula for carbon monoxide?
Answer: CO
Bonus fact: Carbon monoxide has one carbon and one oxygen atom.
Methane is a greenhouse gas with the chemical formula what?
Answer: CH4
Bonus fact: Methane contains one carbon and four hydrogen atoms.
What is the chemical formula of methane?
Answer: CH4
Bonus fact: Methane has one carbon and four hydrogen atoms.
What is the chemical formula for water?
Answer: H2O
Bonus fact: Each water molecule contains two hydrogen atoms and one oxygen atom.