The basic building blocks are atoms
Ans :C
same proton(atomic no.) and electron, diff neutrons
mass no= electrons + neutrons
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.
Answer: 2.64 g of carbon dioxide that could be produced by the chemical reaction.
Explanation:
To calculate the moles :


According to stoichiometry :
1 mole of
require = 2 moles of 
Thus 0.06 moles of
will require=
of 
Thus
is the limiting reagent as it limits the formation of product and
is the excess reagent.
As 1 moles of
give = 1 mole of 
Thus 0.06 moles of
give =
of 
Mass of 
Thus 2.64 g of carbon dioxide that could be produced by the chemical reaction.