1chem

    Subdecks (2)

    Cards (156)

    • Chemistry
      The study of matter and the changes it undergoes
    • Origin of Chemistry
    • Alchemy
      A mixture of scientific investigation and mystical quest, with strands of philosophy from Greece, China, Egypt, and Arabia
    • Main aims of alchemy
      • The quest for the elixir of life (immortality)
      • The search for the philosopher’s stone (turn base metals into gold)
    • Matter
      Anything that occupies space and has mass
    • States of Matter
      • Solid
      • Liquid
      • Gas
    • Kinetic Molecular Theory
      All matter is made up of extremely small particles that are in constant motion
    • Solid
      • Rigid with particles tightly packed
      • Definite shape
      • Definite volume
    • Liquid
      • Flows with particles far apart
      • Definite volume
      • Indefinite shape
    • Examples of liquids
      • Water
      • Alcohol
      • Oil
    • Gas
      • Takes both shape and volume of its container
      • Particles very far apart
      • Move freely
      • Indefinite shape
      • Indefinite volume
    • Examples of gases
      • Oxygen
      • Helium
      • Methane
      • LPG
    • The three states of matter can be interconverted without changing the composition of the substance
    • Quiz questions
      • A field of science that deals with the study of matter and the changes it undergoes
      • A science that was used in the Middle Ages with the goal of changing ordinary metals into gold
      • What is matter?
      • This theory suggests that all matter is made up of extremely small particles (atoms, molecules, or ions) that are in constant motion
      • Matter with definite volume but indefinite shape is Liquid
      • True or False: The composition of a substance is changed during phase change
      • The ultimate factor that causes phase change
      • The phase change involved in the formation of clouds
      • Matter that has no definite shape nor definite volume and takes up the space of its container
    • Heat/Energy
      The ultimate factor that causes phase change
    • Phase changes
      • Freezing/Solidification
      • Melting
      • Deposition
      • Sublimation
      • Evaporation
      • Condensation
    • Classification of Matter
      • Pure Substance
      • Mixtures
    • Types of Mixtures
      • Homogeneous
      • Heterogeneous
    • Examples of Elements
      • Oxygen
      • Gold
      • Silver
      • Sulfur
    • Examples of Compounds
      • Water
      • Sugar
      • Salt
      • Vinegar
    • Examples of Homogeneous Mixtures
      • Sugar in water
      • Vodka
      • Gasoline
    • Examples of Heterogeneous Mixtures
      • Raisin bread
      • Dirt
      • Wood
      • Rock
    • Pure Substances
      Materials consisting of one particular kind of matter
    • Element
      The simplest form of substance that makes up all matter
    • Elements are composed of only one kind of atom
    • At this point, there are 118 known elements
    • Distribution of Elements
      • 118 Elements
      • 96 Natural Elements
      • 22 Man-made (Artificial Elements)
      • 10 constitute 99% of the earth’s crust
      • 3 constitute 93% of the human body
      • 75 are found in all other kinds of matter
    • Elements present in the Earth Crust
      • Oxygen
      • Silicon
      • Aluminum
      • Iron
      • Calcium
      • Sodium
      • Potassium
      • Magnesium
      • Hydrogen
      • Titanium
      • others
    • % By weight of Elements in Earth Crust
      • 49.1
      • 26.1
      • 7.5
      • 4.7
      • 3.4
      • 2.6
      • 2.4
      • 1.9
      • 0.9
      • 0.6
      • 0.8
    • Elements present in the Human Body
      • Oxygen
      • Carbon
      • Hydrogen
      • Nitrogen
      • Calcium
      • Phosphorus
      • Chlorine
      • others
    • % By weight of Elements in Human Body
      • 64.6
      • 18.0
      • 10.0
      • 3.1
      • 1.9
      • 1.1
      • 0.9
      • 0.9
    • Metals
      • Possessing different characteristics such as malleability, ductility, lustrous, and good conductor of heat and electricity
    • Examples of Metals
      • Copper
      • Gold
      • Silver
    • Non-metals
      • Not possessing the characteristic of metal to any significant degree
    • Examples of Non-metals
      • Oxygen
      • Hydrogen
      • Chlorine
    • Metalloids
      • Possessing both the characteristics of metals and non-metals
    • Examples of Metalloids
      • Silicon
      • Arsenic
    • Properties of Metals
      • Hard, dense, solid (except mercury)
      • Strong
      • Shiny
      • Malleable and ductile
      • Sonorous
      • Can conduct heat and electricity
      • Usually have high melting points
      • Have high tensile strengths
      • Have high densities
    • Properties of Nonmetals
      • Some are gases, liquids, or solids; less dense; and softer (except diamond)
      • Dull
      • Brittle
      • Not sonorous
      • Insulators (except graphite)
      • Have low melting point
      • Have low tensile strengths
      • Have low densities
    • Compound
      A pure substance made up of two or more elements combined in definite and constant proportions
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