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Which of the following mixtures is classified as a solution?
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6. Chemical Quantities & Aqueous Reactions
Solutions
Scelta multipla
Which of the following is NOT an example of a solution?
A
Air (a mixture of gases)
B
Sand and water mixture
C
Salt water (NaCl dissolved in H2O)
D
Brass (an alloy of copper and zinc)
Guida verificata passo dopo passo1
Step 1: Understand the definition of a solution. A solution is a homogeneous mixture where the composition is uniform throughout, and the solute is completely dissolved in the solvent.
Step 2: Analyze each option to determine if it fits the definition of a solution:
- Air is a homogeneous mixture of gases, so it is a solution.
- Salt water is a homogeneous mixture where salt (NaCl) is dissolved in water, so it is a solution.
- Brass is a homogeneous alloy of copper and zinc, so it is a solution.
- Sand and water mixture is heterogeneous because sand particles do not dissolve in water and the mixture is not uniform.
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