When a salt crystal dissolves in a large glass of water formed the solvent molecules surround the solute ions at the molecular level.
Explanation:
Solvation is defined as the interaction of solute particles to the solvent which stabilises the solute species in solution.
If a crystal of salt is dissolved in water, each of the ions forms of the salt will surround the water molecule. The strong covalent bonds of the water molecule will pull the ions of the crystal salt into the solution. The ions formed will now be surrounded by water molecules which is dipolar. The separated ions get thoroughly mixed in the water.
Answer:
Option A. are mostly non-metals.
Explanation:
Oxidising agents are mostly non-metals because non metals gains electron from the metal during chemical bond and we know that oxidising agent is electron accepter not donar. For example, Sodium is a metal react with chlorine which is a non-metal so the sodium losses electron and this electron is gain by chlorine atom forming sodium chloride. In this example chlorine is a non-metal which gains electron.
The answer is true, since catabolism is the breakdown of more complex compounds into more simpler ones.
Answer:
B. a nucleus
Explanation:
cell walls and chloroplast are both found in plant cells, not in animal cells
An ultrasound uses sound waves to produce images of a baby.
