18 Questions
What is a characteristic of pure substances?
Constituent particles have a fixed composition
What is a way to separate the components of a mixture?
By simple hand-picking, filtration, crystallisation, distillation, etc.
What is an element?
A pure substance consisting of only one type of atoms
What is a characteristic of heterogeneous mixtures?
Particles of different substances are not uniformly distributed
What is a compound?
A type of pure substance consisting of two or more elements
What is a characteristic of glucose?
Its particles are of same composition
What is the typical sequence of states of matter when a substance is heated?
Solid, liquid, gas
What is the main difference between a pure substance and a mixture?
A pure substance has a fixed composition, while a mixture has a variable composition
What is the term for a mixture in which the components are uniformly distributed throughout the bulk?
Homogeneous mixture
What is the term for the process by which a gas changes to a liquid?
Liquification
What is an example of a homogeneous mixture?
Air
What is the classification of matter that includes both pure substances and mixtures?
Macroscopic level
What is the fundamental characteristic of solids?
They have definite volume and definite shape
What is true about the particles in a gas?
They are far apart and their movement is easy and fast
What is common to all three states of matter?
They are all composed of matter
What happens to the particles in a substance when it changes from a solid to a liquid?
They gain more freedom of movement
What is true about the shape of a liquid?
It takes the shape of its container
What can cause a change from one state of matter to another?
Changes in both temperature and pressure
This quiz covers the basics of mixtures and pure substances, including their characteristics and separation methods. Learn how to identify and distinguish between the two. Test your knowledge of chemistry fundamentals!
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