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Multiple Choice
What is the primary goal of the Law of Conservation of Mass in a chemical reaction?
A
To ensure that the total mass of reactants equals the total mass of products
B
To ensure that the number of molecules remains the same
C
To ensure that the volume of gases remains constant
D
To ensure that energy is conserved during a chemical reaction
Verified step by step guidance
1
The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. This means that the mass of the reactants must equal the mass of the products.
In a chemical reaction, atoms are rearranged to form new substances, but the total number of each type of atom remains constant. This is why the mass remains unchanged.
To apply the Law of Conservation of Mass, one must ensure that the chemical equation is balanced. This means that the number of atoms for each element is the same on both sides of the equation.
Balancing a chemical equation involves adjusting the coefficients (the numbers in front of molecules) to ensure that the same number of each type of atom appears on both sides of the equation.
The primary goal of the Law of Conservation of Mass is to ensure that the total mass of reactants equals the total mass of products, which is a fundamental principle in chemistry.