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Chemistry
  • Kurisu Lewl

  • 問題数 35 • 2/4/2024

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    問題一覧

  • 1

    All ____ is particulate in nature

    Matter

  • 2

    Composed of tightly packed particles

    Solid Matter

  • 3

    Made of more loosely packed particles

    Liquid Matter

  • 4

    A fluid that flows around a magnetic rod or core which attracts ferrous particles

    Magnetic Filtration

  • 5

    Most basic form from filtration is using gravity to filter a mixture

    General Filtration

  • 6

    The process of seperating suspended solid matter from a liquid

    Filtration

  • 7

    A method used by scientists for seperating organic and inorganic compounds so that hey can be analyzed and studied

    Chromatography

  • 8

    Method of Seperating Mixtures

    Magnet , Filter, Decant, Evaporation , Centrifuge , Chromatography , Distillation

  • 9

    One of the distinct form in which matter can exist

    State of Matter

  • 10

    What is the fourth state of matter?

    Plasma

  • 11

    ______ is an ionized gas, a gas into which sufficient energy is provided to free electrons from atoms or molecules

    Plasma

  • 12

    Ch 2 It involves assigning numbers to characteristics of objects or events in such a way that the numbers reflect reality

    Measurements

  • 13

    Ch 2 What are the four different types of measurement scales?

    Nominal, Ordinal, Interval, Ratio

  • 14

    Ch 2 Is how close measure values are to each other.

    Precision

  • 15

    Is how close a measure value is to the true value.

    Accuracy

  • 16

    Ch 2 Are the number of digits in a value, often a measurement

    Significant figures

  • 17

    Ch 2 What are the 3 types of errors?

    Static Error, Instrument Loading Error, Dyamic Error

  • 18

    All mater is made up of tiny particles called ____.

    Atoms

  • 19

    Ch 3 What is the 3 basic law of matter?

    Law of Conservation of mass, Law of definite proportions , Law of multiple proportions

  • 20

    Ch 3 Is two or more elements can combine to form different compounds in whole-number ratio

    Law of Multiple Proportions

  • 21

    Ch 3 In atomic physics and quantum chemistry, the election configuration is the distribution of electrions of an atom or molecule

    Atomic Structure

  • 22

    Ch 3 A subatomic particle, symbol e- or B-, whose electric charge is negative one elementary charge.

    Electron

  • 23

    Ch 3 Who discovered a subatomic particle called Electron?

    J.J. Thomson

  • 24

    Ch 3 Is a subatomic particle, symbol p or p+, with a positive electric charge of +1e elementary charge and a mass slightly less than that of a neutron.

    Proton

  • 25

    Who discovered the subatomic particle called Proton?

    Ernest Rutherford

  • 26

    A subatomic particle, symbol n or n°, with no electric charge and a mass slightly greater than that of a proton

    Neutron

  • 27

    Ch 3 Are neutral particles made of two or more atoms bonded together

    Molecule

  • 28

    Ch 3 Is a positively or negatively charged particle

    Ion

  • 29

    Two types of Ion

    Cation, Anion

  • 30

    Ch 3 Ion that losses e-

    Cation

  • 31

    Ch 3 Are the elements that have the same atomic no. but different atomic mass

    Isotopes

  • 32

    Ch 4 Is the calculation of reactants and products in chemical reactions

    Stoichiometry

  • 33

    Ch 4 Used as the bridge between chemistry on the atomic and macroscopic scale

    Atomic Mass

  • 34

    Ch 4 Applies to all kinds of particles: atoms, molecules, ions, formula units etc.

    The Mole Concept

  • 35

    Ch 4 Is calculated from a molecular formula by dividing the mass of a element in one mole of a compound by the mass of one mole of the entire compound

    Percent Composition