Answer :
Vinegar is a weak acid. This is used to make a naked egg. When an egg is added in the vinegar for one day / 24 hrs, it reacts with the eggshell. The calcium carbonate shell gets dissolve.
Then an egg without shell is formed and the size of the egg does not change. The calcium carbonate reacts with acetic acid and forms carbon dioxide.
When the shell-less egg is kept in the vinegar for 48 hrs i.e. 2 days again, the water content in it enters into the eggs through the membrane. Then the egg gets somewhat bigger.
Otherwise, for 24 hrs, vinegar is acting like an isotonic solution and only dissolves the shell. This experiment would be done for showing the osmosis process through the cell membrane.
Answer:
A.
Strength and usefulness of claims are evaluated through scientific argumentation
Explanation:
Answer:
The advantage of small cell size is that substances like organic molecules and ions can diffuse easily into the cells whereas wastes can diffuse easily out of the cells.
Answer: The correct answer is Glucose.
The chemical formula of the given molecules are-
Carbon dioxide is CO₂, which means that it contains 2 oxygen and 1 carbon atom and therefore 3 atoms per molecule.
Glucose- C₆H₁₂O₆, which means that it contains 6 carbon, 12 hydrogen, and 6 oxygen atoms. Thus, total atoms are 24 per molecule.
Oxygen- O₂, which means that it contains 2 atoms of oxygen.
Water- H₂O, which means that it contains 2 hydrogen and 1 oxygen atom and therefore 3 atoms per molecule.
Thus, glucose has greatest number of atoms per molecule.