spoon beaker stirring rod graduated cylinder distilled water in spray bottle which of the following tools…

spoon beaker stirring rod graduated cylinder distilled water in spray bottle which of the following tools could have become cross - contaminated during the experiment if you had not cleaned them carefully between successive tests? spoon beaker stirring rod graduated cylinder distilled water in spray bottle

spoon beaker stirring rod graduated cylinder distilled water in spray bottle which of the following tools could have become cross - contaminated during the experiment if you had not cleaned them carefully between successive tests? spoon beaker stirring rod graduated cylinder distilled water in spray bottle

Answer

Answer:

  • Spoon
  • Beaker
  • Stirring Rod
  • Graduated Cylinder

Brief Explanations:

These are all physical contact - based lab tools. If not cleaned, substances from previous tests can remain on them and contaminate subsequent samples. The distilled water in the spray bottle is less likely to cause cross - contamination as it is a clean substance in a closed container (assuming the bottle itself is clean).