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describing substances: atomic theory Flashcards | StudBud
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describing substances: atomic theory
describing substances: atomic theory
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#chemistry
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1
Who FIRST experimented with mercury calx and dephlogisticated air?
Priestley
Lavoisier
Bernoulli
Dalton
2
Empedocles and the ancient Greeks believed that matter was made of which elements?
oxygen & hydrogen
fire, water, earth, air
the elements that make up the periodic table
phlogiston & dephlogisticated air
3
What was Torricelli's biggest contribution to atomic theory?
air has weight
conservation of mass
discovering phlogiston
matter can be divided into atoms
4
Prior to modern atomic theory chemistry, what were some of the ways chemistry was used?
Food Preservation
Alchemy
Metallurgy
Medicine
5
Lavoisier's contributions to chemistry include..
all of the above
discovered oxygen
made the first periodic table
named oxygen
6
The Greek philosopher Democritus thought that all matter was
made of phlogiston.
made of cheese.
made up of the four elements: air, water, fire and earth.
made of indivisible parts called "atoms."
7
The fact that water will always be made of 2 parts Hydrogen and 1 part water is an example of..
The Law of Multiple Proportions
The Law of Conservation of Mass
The Law of Definite Proportions
Boyle's Law
8
Who named "atomos"?
Torricelli
Aristotle
Empedocles
Democritus
9
Antoine Lavoisier's experiment of burning sulfur and phosphorus in an enclosed cylinder proved
the Law of Conservation of Momentum
the Law of Conservation of Matter
the Law of Conservation of Energy
the Law of Equivalent Exchange
10
Dalton confirmed the existence of "atoms" by proving that matter
was composed of protons, neutrons and electrons.
released or absorbed energy during chemical reactions.
had a positive and negative charge.
reacted in fixed number ratios.
11
"atomos" is Greek for...
element
atom
indivisible
small pieces of matter
12
The person responsible for naming oxygen was..
Lavoisier
Priestley
Empedocles
Dalton
13
Who proposed that matter is made of ball-like particles that are always moving?
Torricelli
Bernoulli
Aristotle
Democritus
14
Dalton's Atomic Theory includes which of the following ideas, except
Chemical reactions involve the recombination of atoms.
All atoms weigh the same.
Atoms of the same element are the same.
Atoms are indestructible.
