The reaction between solid aluminum and liquid bromine is exothermic. This reaction creates the product aluminum bromide. What equation includes the correct formulas and demonstrates conservation of mass?AAl(s) + 3Br(l) → AlBr3(s)BAl(s) + Br2(l) → AlBr3(s)C2Al(s) + 3Br2(l) → 2AlBr3(s)DAl(s) + Br(l) → AlBr(s)
Question
The reaction between solid aluminum and liquid bromine is exothermic. This reaction creates the product aluminum bromide. What equation includes the correct formulas and demonstrates conservation of mass?AAl(s) + 3Br(l) → AlBr3(s)BAl(s) + Br2(l) → AlBr3(s)C2Al(s) + 3Br2(l) → 2AlBr3(s)DAl(s) + Br(l) → AlBr(s)
Solution
The correct equation that demonstrates conservation of mass is C. 2Al(s) + 3Br2(l) → 2AlBr3(s).
Here's the step by step explanation:
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Identify the reactants and products: The reactants are solid aluminum (Al) and liquid bromine (Br2), and the product is aluminum bromide (AlBr3).
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Write the unbalanced equation: Al + Br2 → AlBr3
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Balance the equation: To balance the equation, you need to ensure that the number of each type of atom on the reactant side is equal to the number of each type of atom on the product side.
In the unbalanced equation, there are 2 bromine atoms on the reactant side and 3 on the product side. Also, there is 1 aluminum atom on the reactant side and 1 on the product side.
To balance the bromine atoms, you can multiply Br2 by 3 on the reactant side and AlBr3 by 2 on the product side. This gives you 6 bromine atoms on both sides.
To balance the aluminum atoms, you can multiply Al by 2 on the reactant side. This gives you 2 aluminum atoms on both sides.
So, the balanced equation is: 2Al + 3Br2 → 2AlBr3
This equation not only includes the correct formulas but also demonstrates conservation of mass, as the number of atoms for each element is the same on both sides of the equation.
Similar Questions
Sophia performs an experiment in which she adds 10.0 grams of zinc metal to 25.0 grams of bromine. She claims that mass will be conserved during the reaction. Which of the following BEST supports her claim? A The mass of the final product will be equal to the mass of the zinc metal, 10.0 grams. B The mass of the final product will be equal to the difference between the two masses, 15.0 grams. C The mass of the final product will be equal to the mass of the bromine, 25.0 grams. D The mass of the final product will be equal to the total mass of both reactants, 35.0 grams.
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