(b)
according to modern measurements:
•
the radius of an atom is about 1 x 10-10 m
•
the radius of an atomic nucleus is about 1 x 10-14 m
show that these values fit with the nuclear model of the atom.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

distance, luminosity, brightness, radius, chemical composition, and temperature

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.