📅 NSB 2014🎓 HS🔄 Round 3#️⃣ Q20❓ TOSS-UP✍️ Short Answer
Gypsum wallboard, commonly known as drywall, is a laminar, composite material composed of front and back paper with a hydrated gypsum core. What is the chemical formula for the hydrated gypsum?
✔️Answer:CaSO4 · 2 H2O
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