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
Answer:
At temperatures below −78 °C, carbon dioxide changes directly from a gas to a white solid called dry ice through a process called deposition.
Electrons is located outside the nucleus
Answer:
Science is the study of the nature and behavior of natural things and the knowledge that we obtain about them. ... A science is a particular branch of science such as physics, chemistry, or biology. Physics is the best example of a science which has developed strong, abstract theories.
Explanation:
Answer:
Strength
Explanation:
Lattice energy is the energy needed to remove one mole of ionic substance to its gaseous ion.
The lattice energy is used to determine the strength of a substance.
- Lattice energy increases as the size of an ion decreases.
- It decreases as the ion size increases.
- This quantity is often determined using electrostatics method in the laboratory
- The lattice energy is used to break an ionic solid to form a gaseous compound.
