Multiple Choice
Which one of the following compounds would form a precipitate when mixed with aqueous Ba(NO3)2?
3
views
6. Chemical Quantities & Aqueous Reactions
Solubility Rules
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following best describes what it means when a substance is water-soluble?
A
The substance forms a precipitate when mixed with water.
B
The substance dissolves in water to form a homogeneous solution.
C
The substance reacts with water to produce a gas.
D
The substance cannot mix with water under any conditions.
Verified step by step guidance1
Understand the term 'water-soluble' by breaking it down: 'soluble' means capable of being dissolved, and 'water' is the solvent in this context.
Recall that when a substance is water-soluble, it means it can dissolve in water, resulting in a uniform mixture where the substance is evenly distributed at the molecular or ionic level.
Recognize that forming a precipitate means the substance does not dissolve but instead forms solid particles that separate from the water, which is the opposite of being water-soluble.
Note that reacting with water to produce a gas is a chemical reaction, not simply dissolving; water solubility refers to physical dissolution without chemical change.
Conclude that the best description of water-soluble is that the substance dissolves in water to form a homogeneous solution, meaning the mixture looks uniform throughout.
2:07mWatch next
Master Solubility and Insolubility with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Solubility Rules practice set
Problem sets built by lead tutorsExpert video explanations