Chapter 1 Flashcards
Two or more atoms joined in a specific arrangement by chemical bonds.
Molecule
The smallest identifiable unit of an element
Atom
Is the smallest identifiable unit of a molecular compound
Molecule
All things are made of _________
Atoms
The science that tries to understand how matter behaves by studying how atoms and molecules behavior
Chemistry
The way that scientist learn about the natural world.
Scientific method
Involves observations, laws, hypothesis, theories, and experimentation
Scientific method
Discovered penicillin when he observed a bacteria free circle around a certain mold that grew on a culture plate
Alexander Fleming (1881-1955)
French chemist who studied combustion, burned substances in closed containers. Measured the mass of each container and its contents before and after burning the substance inside, no change in the mass during combustion.
Antoine Lavoisier
A tentative interpretation or explanation of the observations. A scientific problem that can be tested by further investigation.
Hypothesis
A good hypothesis is __________
Falsifiable
Highly controlled observations designed to validate or invalidate hypothesis.
Experiments
A statement that summarizes past observations and predict future ones. Are usually formulated from a series or related observations.
Scientific law
In a chemical reaction matter is neither created nor destroyed
Law of conservation of mass
A proposed explanation for observations and laws. Presents a model of the way nature works and predicts behavior that extends well beyond the observations and laws from which it was formed
Theory
