11 Questions
Which term describes a substance contaminated with small amounts of one or more other substances?
Heterogeneous
Which type of substance can be separated into two or more pure substances by physical or mechanical means?
Impure substance
In the context of mixtures and pure substances, what does 'homogeneous' refer to?
Being of uniform composition throughout
Which of the following is a characteristic of a pure substance?
Constant properties throughout the whole sample
What is an element according to the text?
A pure substance that cannot be decomposed further
Which process involves the change of a gas or vapor to a liquid?
Condensation
What is the key characteristic of a compound?
Constant composition by mass
Which substance cannot be decomposed into simpler substances?
Aluminum Oxide
What is the main difference between a liquid and a gas?
Shape
In which process does a liquid change to a gas without forming visible bubbles?
Evaporation
What is the difference between freezing and boiling?
State change from solid to liquid vs. liquid to gas
Learn about the differences between mixtures and pure substances, including definitions of homogeneous and heterogeneous mixtures. Understand how impurities affect the classification of substances.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
