Flashcard Set Preview
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| 1 |
Define Chemistry
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It is the science that investigates the molecular reasos for the process occuring in our macroscopic...
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| 2 |
Who created the Law of conservation of mass and what is it?
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Antoine Lavoisier
Mass is neither created or destroyed in a chemical reaction
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| 3 |
List the steps of the scientific method
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#1 Data collection/Observation
#2 Hypothesis
#3 Experiment
#4 Theory
#5 Law
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| 4 |
What is an Atom
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The smallest indivisible particle
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What did Empedocles believe?
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Air water earth and fire were the our main elemets
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What element did Aristotle believe
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ether
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What was Alchemy
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A partly experiemented and partly magical and entirely secretive pursuit with two main goals
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What were the to main goals of Alchemy
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Transmutation and Discovery of the elixr of life
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What is transmutation
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Transforming ordinary materials into gold
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| 10 |
What is the discovery of the elixr of life
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A sustance that would grant immortality to any one who consumed it
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| 11 |
Desribe an element
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Cannot be deomposed into simpler substances, by ay amount of chemical transformation
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| 12 |
Describe compounds
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Compounds are composed of two or more elements in definite proportion
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| 13 |
Describe mixtures
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Combinations of two or more PURE substances in variable proportions
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Describe Homogenous mixture
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Homogenous mixtures are thse that have the same composition throughout. I.E Kool aid and water...
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Describe a heterogenous mixture
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Heterogenous mixtures are those that can be separated into 2 or more regions with differet...
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| 16 |
Explain Proust's Law of Constant Composition
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All samples of a compound have the same proportions of their constiuen elements
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| 17 |
Explain Daltons theory
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Dalton used the Law of conservation of mass and the law of constant composition as the data...
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What did Rutherford do
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Examined the atomic sructure by directing small prtices called alpha particles at a thin sheet...
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