BEAUTY OF SCIENCE / SCIENCE PHOTO LIBRARY BEAUTY OF SCIENCE / SCIENCE PHOTO LIBRARY
Barium sulphate precipitation. Macrophotography footage of a precipitation reaction producing barium sulphate as a white solid. The reaction is between barium chloride and sodium sulphate to produce barium sulphate and sodium chloride: BaCl2 + Na2SO4 -> BaSO4 + 2NaCl. This is an example of a double displacement reaction.
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