Podcast
Questions and Answers
What happens to the solubility of a substance as the temperature increases?
What happens to the solubility of a substance as the temperature increases?
- Stays the same
- Becomes insoluble
- Increases (correct)
- Decreases
What is a characteristic of a pure substance?
What is a characteristic of a pure substance?
- It has impurities mixed in
- It has a definite melting and boiling point (correct)
- It varies in composition
- It contains particles of other substances
Why does purity matter when making medical drugs or food flavorings?
Why does purity matter when making medical drugs or food flavorings?
- To ensure safety by preventing harmful substances (correct)
- To make the substance taste better
- To reduce the cost of production
- To increase the amount produced
What happens to the melting point of a solid when it contains impurities?
What happens to the melting point of a solid when it contains impurities?
Why are gases unusual in terms of solubility compared to other substances?
Why are gases unusual in terms of solubility compared to other substances?
What is the process used to separate a mixture of liquids based on their different boiling points?
What is the process used to separate a mixture of liquids based on their different boiling points?
How does distillation work in separating water and alcohol?
How does distillation work in separating water and alcohol?
How are immiscible liquids separated in a laboratory setting?
How are immiscible liquids separated in a laboratory setting?
What is the term used for liquids that do not mix together?
What is the term used for liquids that do not mix together?
Which technique involves the cooling of a gas back into a liquid for collection?
Which technique involves the cooling of a gas back into a liquid for collection?
What is the main characteristic of a mixture?
What is the main characteristic of a mixture?
Which of the following is an example of a pure substance?
Which of the following is an example of a pure substance?
What is a solution?
What is a solution?
In a solution, what is the role of the solute?
In a solution, what is the role of the solute?
Which of the following best describes the properties of a mixture?
Which of the following best describes the properties of a mixture?
