Answer: A mole is a unit of measurement.
Explanation:
moles= mass/molar mass
for example moles=1000g/342.296 g/mol
moles=2.921 mol
Answer:
they both have seven electrons in the outer shell
they are all just one electron shy of having full shells
Answer:
False
Explanation:
When electrons move from lower to higher electron energy level they absorb the energy. When they move from higher to lower energy level they emit energy.
Answer:
the product is Mg(Clo3)2 + AgI
<h2>
Simple diffusion is defined as the movement of: A molecules from areas of higher concentration to areas of lower concentration.</h2>
Explanation:
Diffusion
It is the movement of substances from the region of higher concentration to lower concentration .
This diffusion is shown almost negligible by solids , a little by liquids and maximum by gases .
The factors on which diffusion depends :
- Inter-molecular force between particles : It is inversely proportional to diffusion .That is : more is the force , lesser the diffusion rate
- Inter-molecular space between particles : More is the space , more is the diffusion or vice versa .
- Density of substance :More is the density , less is the diffusion or vice versa .
Applications of diffusion
It helps in the movement of substance in and out from the cell and its components .
It helps in spreading the fragrance when sprayed with some perfume etc .
It helps in dissolving substance in any medium
Etc