Answer:
C: The Fe is not balanced
Explanation:
The reaction expression is given as:
Fe₂O₃ + 3H₂ → Fe + 3H₂O
The problem here is to find the specie that is not balanced.
Number of moles
Specie Reactant Product
Fe 2 1
O 3 3
H 6 6
So, we see that Fe is not balanced.
To find the amount of atoms in a mole you will use Avragadro's constant. So 2.8 x 6.02 x 10^23 (2.8x 6.02 ten to the power of 23)
2.8x 6.02 10^23
A noble metal is a metal that resists oxidation and does not corrode (i.e: rust). Silver and platinum are great examples since they don't rust
Answer:
Group 1
Explanation:
The alkali metals would do anything to lose their one electron and become a cation with a plus 1 charge. They basically have the lowest electronegativity values.
