Sr. Irene Chem 1.1 1.2 1.3 and class notes – Flashcards
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Matter
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anything that has mass and occupies space
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Chemistry
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The study of the composition of matter and the changes that matter undergoes
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numeric problem
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analyze->calculate->evaluate
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non-numeric problem
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analyze->solve
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Meniscus
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the middle of a graduated cylinder
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Antoine Lavoisier
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changed science from observation to a science of measurement
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Technology
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means of which a society provides its members with those things needed and desired
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What are three reasons for studying Chemistry?
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explaining the natural world, preparing people for career opportunities, and producing informed citizens
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How has modern research in chemistry impacted society?
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can lead to technologies that aim to benefit the environment, conserve and produce energy, improve human life, and expand our knowledge on the universe
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How do chemists study the universe?
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they gather data from afar and analyze matter brought back to Earth
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How can a knowledge of chemistry make you a more informed citizen?
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it can help you evaluate data presented, arrive at an informed opinion, and take appropriate action.
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A friend tells you chemistry is stupid what is your response?
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Chemistry is important for everyday life. It can explain the natural world, prepare you for a career, and make you an informed citizen
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Scientific method
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A logical, systematic approach to the solution of a scientific problem
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observation
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When you use your senses
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Hypothesis
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a proposed explanation for an observation
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experiment
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A procedure that us used to test a hypothesis
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independent variable
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the variable that you change
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Dependent variable
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the variable that you observe
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model
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a representation of an object or event
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theory
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a well tested explanation for a broad set of observations
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scientific law
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is a concise statement that summaries the results of many observations and experiments
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Organic Chemistry
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study of all chemicals containing carbon
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Inorganic Chemistry
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study of chemicals that don't contain carbon
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biochemistry
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the study of processes that take place in living organisms
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analytical Chemistry
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study of chemistry that focuses on the composition of matter
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physical chemistry
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study that deals with the mechanism rate and energy transfer that occurs when matter undergoes a change
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Pure chemistry
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pursuit of chemical knowledge for it's own sake
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Applied Chemistry
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research that is directed toward a practical goal or application.
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Why does Chemistry affect all aspects of life and most natural events?
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because all living and non-living things are made up of matter
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Name five traditional areas into which chemistry can be divided
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organic inorganic biochemistry analytical and physical
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What are the big ideas of chemistry?
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chemistry as a central science, electrons, the structure of atoms, bonding and interactions, reactions, kinetic theory, the mole and quantifying matter, matter and energy, and carbon chemistry
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why might a geologist ask an analytical chemist to help identify the minerals in a rock?
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because they analyze everything inside the rock
