Explanation:
When an atom bonds with another atom then it results in the formation of a chemical bond.
This formation of bond could be due to transfer or sharing of electrons.
When a chemical bond is formed due to transfer of electrons then this type of bond is known as ionic bond.
When a chemical bond is formed due to sharing of electrons then this type of bond is known as covalent bond.
NH3. Ammonia is composed of one nitrogen atom, and three hydrogens.
Answer:
A
Explanation:
mole=mass of the element ÷ atomic mass of the element.
mole=6÷atomic mass of flourine.
Answer: 11.5 L
Explanation:
Sucrose is a dissacharide with a chemical formula C12H22O11. It is composed of glucose and fructose.
Given that:
volume of sucrose = ?
Concentration of sucrose = 0.4M
(Note that molarity is the same as concentration in moles per litres,
So, 0.4M = 0.4 mol/L)
Amount of moles of sucrose = 4.6 moles
Recall that the concentration of a solution depends on the amount of solute dissolved in a particular volume of solvent.
I.e Concentration in mol/L =
Amount in moles / Volume in liters
0.4M = 4.6 moles / Volume
Volume = 4.6 moles / 0.4 mol/L
Volume = 11.5 L
Thus, 11.5 liters of 0.4M solution can be prepared with 4.6 moles of sucrose.
The answer should be d all of the above