Question: Which of these represents a chemical change? O boiling water to form steam O turning hair yellow with bleach O melting butter O mixing

Which of these represents a chemical change? O boiling water to form steam O turning hair yellow with bleach O melting butter O mixing powdered charcoal and oxygen at room temperature O cutting a bar of sodium metal into pieces with a knife The formula for magnesium sulfate is MnSO4 O MgSO4 O Mn2SO4 O M82504 O MnS

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