Some Basic Concepts Of Chemistry Flashcards
(15 cards)
What’s mean by matter?
Anything which has mass and occupies space is called matter.
What are the states of matter?
There are three States of matter solid ,liquid and gas.
Define classification of matter.
Classification of matter refers to the process of grouping substance and mixtures based on their physical and chemical properties.
What are the types of classification of matter?
There are two types of classification of matter pure substance and mixture
Define pure substance.
Have a constant composition and properties meaning they are made up of only one type of matter
Define mixtures.
Combinations of two or more substance that can be physically separated.
What are the types of pure substances ?
There are two types of pure substance elements and compounds
Define elements.
The simplest form of matter like oxygen or iron
Define compounds.
Found by the chemical combination of two or more elements like water or salt.
What are the types of mixtures?
There are two types of mixtures homogeneous mixture and heterogeneous mixture.
Define homogeneous mixture.
Have a uniform compositions throughout,like salt water
Define heterogeneous mixture.
Have different components that are not uniformly distributed,like salad
What are the properties of matter and their measurement
There are two types of properties physical property and chemical property.
Define physical property.
Can be measured or observed without changing the identity of the composition of the substance.
Example smell,colour melting point
Define chemical properties.
Measurement or observation of chemical properties require a chemical change to occur
Example** acidity or basicity combustibility**
