D= mass/volume so it's 100/68 which equals 1.47cm3
Answer: The correct statement is the liquid solution might have been dangerous to touch with bare hands.
Explanation:
In the question, it is given that Ari has wiped the spilled liquid with paper towels without putting on the gloves.
While working in a lab, one must follow some safety rules:
- There are chemicals all around the lab, so it should be handled with care that is by wearing gloves.
- If by chance there is spilling on liquid on the shelf, it should be cleaned with the help of paper towels while wearing gloves.
- Any chemical must not be touched with bare hands.
Hence, the correct answer is the liquid solution might have been dangerous to touch with bare hands.
Answer:
by burning the mixture in an electrical furnace to a temp. 640 degree C. to melt both Zinc & Aluminum leaving copper oxide as a powder.
Explanation:
4.002602 u
Being one of the lightest elements in the world, Helium has an atomic mass of 4.0026 u. u means Unified Atomic Mass Units. 1 u equals to the mass of 1/12 of the mass of a 12C ( Carbon - 12 ) isotope.
