chemistry

Cards (76)

    1. The science that deals with the properties, composition, and structure of substance (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these proce
    sses. Chemistry
  • Anything that takes up space.
    Matter
  • States of matter
    Solid, liquid, and gas
  • Are characteristics of a substance which enable us to identify the substances and differentiate it from other substances.
    Properties
  • Properties can be classified as?
    Physical or chemical
  • Can be observed with an accompanying change in the chemical composition of a substance
    Chemical properties
  • Can be observed without changing the composition of a substance
    Physical Property
  • The appearance or form of the matter changes, but the kind of matter in the substance does not
    Physical Change
  • The kind of matter changes and at least one new substance with new properties is formed
    Chemical Change
  • It is the simplest type of matter that is composed of only one kind
    of atom
    Element
  • Is composed of two or more elements combined chemically is definite proportions
    Compound
  • Compounds may be classified as either _______ and _____ ionic depending on the nature of the elements that comprise them
    covalent and ionic
  • It is the general term used to describe any atoms that are connected by chemical bonds
    Molecule
  • It is a molecule made of atoms from different elements
    Compound
  • All compound are ________, but not all molecules are ________
    Molecules and Compound
  • It can be decomposed into their constituent elements only through chemical means
    Compound
  • Water (H20) can be separated into hydrogen and oxygen through a process called
    Electrolysis
  • In homogenous, HOMO means
    one
  • It has uniform composition and properties as seen by the naked eye
    Homogenous mixture
  • It is a homogenous mixture of substances and can be physically combined in varying proportions
    solution
  • They are made up of two or more substances that are only physically combined and thus can be separated into their components through simple physical means
    Mixtures
  • Is the substance that gets dissolved
    Solute
  • Is the one that does the dissolving
    Solvent
  • In Heterogenous, HETERO means
    two
  • Have two or more phases and do not have a uniform composition
    Heterogenous mixtures
  • Particles are seen through a flashlight
    Colloids
  • Colloids, which are also called _________ ___________, are heterogenous mixtures that have bigger particles than those of a solution but smaller than those of a suspension.
    Colloidal dispersions
  • Are heterogenous mixtures where the suspended particles can be seen and are large enough to be filtered
    Suspensions
  • Methods of separating mixtures
    Magnetic separation, Decantation, Evaporation, Sublimation, Filtration, Distillation and Chromatography
  • Magnets are normally used to remove magnetic solids from the nonmagnetic components of a mixture(example : sand and iron filings)
    Magnetic separation
  • Is a process of separating the liquid from the solid component of a mixture, pouring out the liquid carefully, without the sediment being disturbed so that it remains at the bottom(example : separate rocks from water by pouring the water out)
    Decantation
  • It is a technique that is used in separating a mixture, usually a solution of a solvent and a soluble solid. In this method, the solution is heated until the organic solvent evaporates where it turns into a gas and mostly leaves behind the solid residue(example : take away sugar from sugar solution)
    Evaporation
  • it is used for the separation of solid-solid mixture where one of the components sublimes (converts from solid state to gaseous state without forming a liquid) upon heating, leaving behind the other components that are non-sublime ( example : change solid into gas)
    Sublimation
  • It is a separation technique used to separate the components of a mixture containing an undissolved solid in a liquid (example : separate sand from water)
    Filtration
  • It is the process of separating the components of a liquid mixture through selective evaporation and condensation ( example : create pure water from salt water)
    Distillation
  • It is the method used to separate components of different degrees of solubility using a moving and a stationary fluid. This method works in separating the color pigments of ink (example: determine the components of a pen's ink)
    Chromatography
  • It is any item often bought for consumption
    Consumer products
  • It is a product or service intended for personal use by consumers rather than industrial use (example : toothpaste, soap, shampoo)
  • One commonly encountered class of consumer products are convenience products
    Household cleaning products and personal care products
  • The most commonly used cleaning products are
    Bleach, soaps, and detergents