Physical changes<span> only </span>change<span> the appearance of a substance, not its chemical composition. Chemical </span>changes cause<span> a substance to</span>change<span> into an entirely substance with a new chemical formula. Chemical </span>changes<span> are also known as chemical reactions.</span>
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.
It can cause a deadly reaction to skin if not treated for a long time
Answer:
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