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C12 - Sulfur
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Total cards: 5•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (5)
#1
Front (Question)
Sulfur can come from
Back (Answer)
volcanoes
#2
Front (Question)
What are the uses of sulfuric acid
Back (Answer)
Used in labs and schools A dehydrating agent
#3
Front (Question)
Steps of the contact process and making sulfuric acid
Back (Answer)
• S(s) + O2(g) ==> SO2(g) • 2SO2(g) + O2(g) <==> 2SO3(g) SO3 = sulfur trioxide • SO3(g) + H2SO4(I) ==> H2S2O7 • H2S2O7(I) + H2O(I) ==> 2H2SO4(I)
#4
Front (Question)
What is another word for H2S2O7
Back (Answer)
oleum
#5
Front (Question)
Why we can’t make sulfuric acid directly from SO3 + H2O ==> H2SO4
Back (Answer)
this part of the process is incredibly exothermic and it releases too much heat. Sulfur trioxide instantly vaporizes (acidic mist)