Chemistry Flashcards
The Montreal protocol
An agreement between nations to phase out the use of compounds and place restrictions on how they should be used in the future
Substance
Also known as a chemical, is matter that has a definite uniform composition
Thermo chemistry
Area of emphasis: heat involved in chemical process
Example of emphasis: heat reaction
Theoretical chemistry
Area of emphasis: chemical interaction
Example of emphasis: many areas of emphasis
Polymer chemistry
Area of emphasis: polymer and plastics
Example of emphasis: textiles, coatings and plastics.
Industrial chemistry
Area of emphasis: chemical processes in industry
Example of emphasis: paints, coatings
Biochemistry
Area of emphasis: matter and environment
Examples of emphasis: metabolism and fermentation.
Environmental chemistry
Area of emphasis: matter and the environment
Example of emphasis: pollution, chemical cycles
Analytical chemistry
Area of emphasis: components and composition of substances
Example of emphasis: foods, nutrients, quality control.
Inorganic chemistry
Area of emphasis: in general, matter does not contain carbon
Examples of emphasis: minerals, metals, and non-metals, semiconductors
Physical chemistry
Area of emphasis: the behavior and changes of matter and the related energy changes
Example of emphasis: reaction rates, reaction mechanisms
Organic chemistry
Area of emphasis: most carbon- containing chemicals.
Examples of emphasis: pharmaceuticals, plastics
Chemistry
The study of matter and the changes it undergoes.
Thomas Midgely jr.
Synthesized the first chlorofluorocarbon in 1928
Weight
A measure not only of the amount if matter but also the effect of earth’s gravitational pull on that matter
Model
A visual, verbal, or mathematical explanation of experimental data.
Mass
Am instrument that reflects the amount of matter
GMB Dobson
GMB Dobson was a British scientist who began measuring the amount of ozone in the atmosphere
Scientific method
A systematic approach used in scientific study
Qualitative data
Information that describes color, odor, shape, or some other physical characteristic
Hypothesis
A tentative, testable statement or prediction about what has been observed
Experiment
A set of controlled observations that test the hypothesis
Independent variable
In an experiment, the variable that the experimenter plans to change
Dependent variable
In an experiment, the variable whose value depends on the independent variable
Control
A standard for comparison
Conclusion
A judgement based on the information obtained
Theory
An explanation of natural phenomenon based on many observations and investigations over time
Scientific law
A relationship in nature that is supported by many experiments
Pure research
To gain knowledge for the sake of knowledge itself
Applied research
Research undertaken to solve a specific problem
Alexander Fleming
Accidentally discovered penicillin
Julian hill
Employee of E.I. DuPont de Nemours and company. He discovered nylon which was soon used in world war 2
Quantitative data
Numerical information describing how much, how little, how big, how tall, or how fast.
Chlorofluorocarbons
Used in plastic foams, solvents, and propellants for spray cans
Who were Mario Molina and F. Sherwood Rowland?
Two scientist who used applied research to find how CFC’s could exist in the atmosphere
