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Ch 1 Chemistry Honor

QuestionAnswer
Examples of Chemistry in world Biology, Chemistry, Physics
Professions in Chemistry Biochemistry, Pharmacist, Renewable engineer
Chemical reactions Dictate life, without them, nothing works or is alive
Chemistry A physical science; study of the composition, structure, and properties of matter.
The process that matter undergoes, and energy change that accompany the process Chemistry
Branches of Chemistry Organic, inorganic, physical, analytical, biochemistry, theoretical
Organic Chemistry Study of carbon molecules
Inorganic Chemistry Study of non organic substances (metals)
Physical Chemistry Study of properties of matter and relation to energy
Analytical Chemistry Identifying components of matter
Biochemistry Study of processes of living things
Theoretical Chemistry Using math and computers to understand and observe
Important Chemicals air (N2, O2), water (H2O), Caffeine, Sugar (C6H12O6)
Penicillin anti bacterial and infection
Polythene plastic fibers
Evolution of Discovery Basic Research -> Applied Research -> Technological Development
Basic Research Research done for the sake of knowledge
Applied Research Research carried out to solve a specific problem
Technological Development Involves production and use of products that improve our quality of life
Matter Anything that has mass and takes up space
Types of Matter Macroscopic, Microscopic, Submicroscopic
Macroscopic Things we can see with the naked eye
Microscopic Things we can see only with Microscopes
Submicroscopic Things we can barely see with higher resolution microscopes
Building blocks of matter Atoms, Elements, Molecules, Compounds
Atoms Smallest unit of an element
Elements Pure substances that can not be broken down any more without losing its chemical identity
Compounds Pure substances that can be broken down into simpler substances (elements)
Molecules Smallest unit of a compound; atoms of two or more elements
Physical Properties Characteristics that can be observed or measured without changing the identity of a substance
Examples of physical properties Colour, Hardness, Melting point
Types of Physical properties Extensive, Intensive
Extensive Dependent on the amount of substance present (mass, volume, amount of energy)
Intensive Independent on the amount of substance (density, melting point, boiling point, electrical conductivity
Chemical Property A substances ability to undergo chemical change (irreversible)
Example of Chemical Property Rusting, Burning
Changes of Matter Physical and Chemical Changes
Physical change A change in a substance that does not involve a change in the identity of the substances
Chemical change a change in which one or more substances are converted into different substances
Signs of chemical change Evolution of gas, colours, odor, temperature change
States of matter Solid, Liquid, Gas
Classification of Matter Pure substances, Mixture
Pure Substances elements and compounds
Mixtures blend of 2 or more kinds of matter, each of which retain their own identities and properties
Types of mixtures Homogeneous and Heterogeneous mixtures
Homogeneous mixture non uniformed structure, composition throughout
Heterogeneous mixture mixture that is compound of dissimilar components, not uniformed throughout
Homogeneous mixtures/solutions composition may be in similar or different states of matter
Heterogeneous mixtures/solutions components may also be in same or different states
Types of seperations filtration, decanting, chromatography, distillation.
Created by: connor.graham
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