Chem 120 Lab Final (Latest 2023-2024)
Complete Questions & Answers (Solved) 100% Correct
- What is NEVER a substitute for proper eye protection? (Goggles)
Answer: Glass- es/Contact lenses
- Name 4 experiment evidences that are indicative of a chemical reaction.
Answer: -
-color change -precipitate formation
- temperature change
-gas formation
- Name the 2 compounds that are necessary for reaction in an Alka-Seltzer cold
tablet.
Answer: sodium bicarbonate/citric acid and water. (NaHCO3 + H2O)
- Is carbon monoxide produced in the alkaseltzer reaction?
Answer: NO.
- Name an inorganic acid
Answer: 1 example is HCI
- Name an inorganic base
Answer: NaOH
- What is an example of an acid-base indicator?
Answer: litmus paper test
- Which has a higher density, Hg 13.6 g/cm^3, or Pt 2.5 * 10^-2 mg/ml?
Answer: Hg
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