Exam 1 important terms Flashcards

1
Q

random error

A

may make a measurment reandomly too high or too low

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2
Q

systemanic error

A

Consitently making a measurment too high or too low

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3
Q

inductive reasoning

A

thought process with specific observations and attempts to generalize to a larger universal conclusion

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4
Q

Deductive reasoning

A

thought process that takes two or more statments and combines them so a clear and irrefutable conclusion can be made

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4
Q

polymers

A

very large molecules made of many smaller molecules

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5
Q

Mass Number

A

sum of the number of protons AND nuetrons in a neclues

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5
Q

Atomic number

A

Number of protons in a nucleus (identifies elements)

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6
Q

isotopes

A

same number of protons diofferent number of nuetrons

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7
Q

lattice

A

when ions assemble into an extended array and are held together by the attraction between oppositely charged ions and ionic bonding occurs

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8
Q

ionic bond

A

medal and nonmetal

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9
Q

covalent bond

A

nonmetal and nonmetal

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10
Q

cemical formula

A

describe a copmpund in terms of the elements the compound contains

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11
Q

empirical formula

A

indicate the smallest whole number ratio between the atoms of each in molecular formula

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12
Q

organic chem

A

study of the compounds of the elemnt carbon, usually with O, N, and H

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13
Q

inoganic chem

A

study of all other elements and their compounds

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14
Q

hydrocarbons

A

contain only C and H

15
Q

periodicity

A

regular patterns in the chem and physical behavior of groups and elements

16
Q

Molarity = ?

A

mole of solute/L of solution

17
Q

electrolyte

A

soulbe in water and the species split into ions

18
Q

strong electrolyte

A

dissociate completely into ions in teh soulution

19
Q

weak electroyte

A

dissociate partially into ions in solution

20
Q

nonelectrolyte

A

soluble in water but the molecule remains intacted

21
Q

Acids

A

Substances that dissolve in water to produce H+ ions

22
Q

Bases

A

Substances that dissolve in water to produce OH- ions

23
Q

mole

A

6.022 x 10^23

24
Q

Molar mass oc a compound is determined by

A

the sum of teh molar masses of all the atoms in a compound

25
Q

Dilution equation

A

Mi x Vi = Mf x Vf

26
Q

Soulte

A

what you dissolve into a liquid

27
Q

Number of moles = ?

A

given mass of compound/molar mass of compound