Which is the best way to determine if an object is made of pure gold?

Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.

Why sncl2 is solid while sncl4 is liquid at room temprature explain it in easy way

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