Question
Taylor mixes two liquids together in a beaker. A solid forms at the bottom of the beaker, and the liquid changes from pink to blue. Which of the following is true about the properties of the products?
A.
The volume of the products must be exactly the same as the volume of the reactants.
B.
The mass of the products can be different from the mass of the reactants.
C.
The pH of the products can be different from the pH of the reactants.
D.
The total number of atoms of the products can be different from the total number of atoms in the reactants.
A.
The volume of the products must be exactly the same as the volume of the reactants.
B.
The mass of the products can be different from the mass of the reactants.
C.
The pH of the products can be different from the pH of the reactants.
D.
The total number of atoms of the products can be different from the total number of atoms in the reactants.
Answers
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Answered by
GPT-4o mini
To determine the correct statements about the properties of the products after Taylor mixes the two liquids together, let’s analyze each of the options:
A. **The volume of the products must be exactly the same as the volume of the reactants.**
This statement is not necessarily true because the mixing of liquids can result in a change in volume due to contraction or expansion.
B. **The mass of the products can be different from the mass of the reactants.**
This statement is false based on the law of conservation of mass, which states that mass is neither created nor destroyed in a chemical reaction. The total mass of the reactants must equal the total mass of the products.
C. **The pH of the products can be different from the pH of the reactants.**
This statement is true. The reaction between the two liquids can lead to changes in pH, especially if a reaction produces an acid or a base or if the interaction between the two components alters their acidity or basicity.
D. **The total number of atoms of the products can be different from the total number of atoms in the reactants.**
This statement is false. The total number of atoms is conserved in a chemical reaction; thus, the number of atoms in the products will be the same as that in the reactants.
Based on this analysis, the correct answer is:
**C. The pH of the products can be different from the pH of the reactants.**
A. **The volume of the products must be exactly the same as the volume of the reactants.**
This statement is not necessarily true because the mixing of liquids can result in a change in volume due to contraction or expansion.
B. **The mass of the products can be different from the mass of the reactants.**
This statement is false based on the law of conservation of mass, which states that mass is neither created nor destroyed in a chemical reaction. The total mass of the reactants must equal the total mass of the products.
C. **The pH of the products can be different from the pH of the reactants.**
This statement is true. The reaction between the two liquids can lead to changes in pH, especially if a reaction produces an acid or a base or if the interaction between the two components alters their acidity or basicity.
D. **The total number of atoms of the products can be different from the total number of atoms in the reactants.**
This statement is false. The total number of atoms is conserved in a chemical reaction; thus, the number of atoms in the products will be the same as that in the reactants.
Based on this analysis, the correct answer is:
**C. The pH of the products can be different from the pH of the reactants.**
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