D iron oxide Fe is a transition metal
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B, a. hopefully that helps
Any liquid with a pH above 8.2.
Phenolphthalein is naturally colorless but turns pink in alkaline solutions. The compound remains colorless throughout the range of acidic pH levels but begins to turn pink at a pH level of 8.2 and continues to a bright magenta at pH 10 and above.
Low melting point
Low boiling point
Electric conductor
2.5gm answer ....2/18x22.5
