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Gunpowder Mixture Potassium Nitrate Charcoal Sulfur Had​ Was​

Question Gunpowder … a mixture of potassium nitrate, charcoal and sulfur.
Title 951
QType (0=kprim,1=mc,2=sc) 2
Q_1 had​
Q_2 was​
Q_3 had been
Answers 0 1 0

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