Chem Exam 1
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51 Terms
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CO3 2-
Carbonate
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NO3-
Nitrate
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OH-
Hydroxide
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PO4 3-
Phosphate
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SO4 2-
Sulfate
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1
mono
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2
di
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3
tri
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tetra
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penta
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hexa
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hepta
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octa
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nona
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deca
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scientific method
observation, hypothesis, experiment, theory, law
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law
predicts what happens
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theory
explain why it happens
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experiments
the testing of a hypothesis under controlled conditions
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matter
Anything that has mass and takes up space
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chemical properties
determine how a substance can be converted into another substance
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physical properties
Can be observed or measured without changing the identity of the matter
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solid state
definite value, maintains shape, particles lie close together in a regular pattern
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liquid state
definite volume, shape of container, close together but can move past one another
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gas state
no definite volume or shape, particles are very far apart and move around randomly
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giga
10^9
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mega
10^6
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kilo
10^3
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hecto
10^2
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deka
10^1
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deci
10^-1
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centi
10^-2
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milli
10^-3
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micro
10^-6
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nano
10^-9
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specific gravity
density of substance/density of water
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atoms
the smallest identifiable unit of an element
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atomic number
proton count
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mass number
protons + neutrons
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iostope
Atoms of the same element that have different numbers of neutrons
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where on the periodic table is most electronegative
very top right (fluorine)
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where on the periodic table is the biggest atomic size
very bottom left
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cation
A positively charged ion and has fewer electrons than protons
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anion
a negatively charged ion and has more electrons than protons
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what state are ionic compounds
solid
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how do ionic compounds behave in water
dissolve
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List the diatomic elements
H, N, O, F, Cl, Br, I
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what is a bond
atoms combining to form chemical compounds
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hydrogen bonds are when hydrogen bonds with what elements
F, O, N
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What is resonance?
two lewis structures having the same arrangement of atoms, but a different arrangement of electrons
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Electronegativity
A measure of the ability of an atom in a chemical compound to attract electrons