An ionic bond is a bond which occurs when there is a
difference in the electronegativity of the atoms. One atom which has a stronger
electronegativity tends to steal the electron of the other less electronegative
atom hence making it more negative (anion), while the other becomes a cation.
So answer is:
<span>b. a cation and an anion</span>
It allowed him to realize that the mass of an atom is concentrated at its center because the atoms mostly went through the foil but some were deflected. He also realized that an atom probably wasn't just empty space and scattered electron and it had a positive center.
Dobereiner could find only three triads; . i.e total of 9 elements only. However the total number of elements were more than that of those encompassed in Dobereiner's Triad. Thus, Dobereiner's could not be classify most of the elements known at that time
Cl2 is acting like a catalyst because it came out in a same state.
and it's homogeneous reaction because they are all gases.
Iron (II)
sulfate also known as ferrous sulphate. Its chemical formula is FeSO₄, and
formula weight is the sum of the atomic weights of all atoms that
are present in a given chemical formula.
Molar mass of Fe is 55.8450
g/mol
Molar mass of S
= 32.065 g/mol
Molar mass of
oxygen = 15.999 g/mol
Now add the
masses according to formula:
<span>55.8450 + 32.065
+ 4(15.999) = 151.96 is the formula weight of FeSO</span>₄
