Answer:
83.6 g
Explanation:
The limiting reactant is carbon and oxygen is in excess.
C + O₂ ⟶ CO₂
Data:
Mass of C = 22.8 g
Mass of O₂ = 78.0 g
Mass of unreacted O₂ = 17.2 g
Calculations:
Mass of O₂ reacted = 78.0 g - 17.2 g = 60.8 g
Mass of reactants (C + O₂) = 22.8 g + 60.8 g = 83.6 g
According to the Law of Conservation of Mass, the mass of the product (CO₂) equals the sum of the masses of the reactants.
The mass of CO₂ is 83.6 g.
Solar Energy is the answer
Hey there!
Atomic number is the number of protons.
Atomic mass is the sum of protons and neutrons.
9 + 11 = 20
Your answer is B) The atomic number is 9 & the atomic mass is 20.
Hope this helps!
Answer:
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