Answer:
21g
Explanation:
no.ofmol fe2o3=39.5/(56×2+16×3)=0.25mol
from equation 1mole fe2o3 react with 3mole co
so,0.25mol fe2o3 react with 0.75mol co
mass of co=0.75×(12+16)=21g
The elements that fill the d orbitals on the periodic table are called transition metals.
Answer:
B
Explanation:
Because element is made up of only one type of atoms and figure b show only one type of atoms.
Answer:
Electrons at the outermost energy level of an atom are called valence electrons. They determine many of the properties of an element. That's because these electrons are involved in chemical reactions with other atoms. Shared electrons bind atoms together to form chemical compounds.
Explanation:
Explanation:
develop a short message which you will deliver to the people in this community about application of chemistry in everyday life
