Avogadro’s number is 6.02 x 10^ 23 atoms (or molecules) per
mole. Through units cancellation:
Number of atoms = (4.56 mol)( 6.02 x 10^23 molecules/ mol) =
2.74 x 10^ 24 molecules
Since the C:H ratio is 1:4, 1 molecule of CH4 will have 4
atoms of hydrogen,
Therefore number of H
= 4 (2.74 x 10^24 molecules) = 1.098 x 10^ 25 atoms
Answer:
(a):Valency is the measure of the capacity of an atom of a single element to react and combine with particular numbers of atoms of another element.
(b):
Valency of calcium:+2
Valency of Iron:Iron exhibits 2 valence states of +2 and +3.
Valency of hydroxl:-1
Valency of Nitrate:-1
Explanation:
Answer: Average K.E of the solid after heating/warming increases
Answer:
All the members of a group of elements have the same number of valence electrons and similar chemical properties.
Explanation:
The vertical columns on the periodic table are called groups or families because of their similar chemical behavior.
