Weighing chemicals. Beaker of an aqueous (dissolved in water) solution of copper (II) sulphate (CuSO4, blue) being weighed on a digital mass balance.

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Weighing chemicals. Beaker of an aqueous (dissolved in water) solution of copper (II) sulphate (CuSO4, blue) being weighed on a digital mass balance. This balance is accurate to two decimal places. The controls include a switch for setting the reading to zero, and a bubble level window (lower right) to ensure the balance is set on a level surface.

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Size: 4056px × 4306px
Photo credit: © MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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