Zinc sulfide decomposes at temperatures greater than 400C in air and/or in oxidizing atmospheres. Zinc sulfide produces zinc and sulfur fumes at temperatures greater than 900C in inert atmospheres.
8ZnS\longrightarrow8Zn+S_8
Decomposition reaction
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What is the domain of the trigonometric function f(x) = cos(x) + 2sin(x) for x β β?
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Math question: Find the limit as x approaches 0 of (sin(x) - x) / (ln(1 + 3x) - 3x).