Chem

Cards (519)

  • The pH scale is logarithmic, meaning that each whole number change represents a tenfold increase or decrease.
  • A solution with a pH of 7 is neutral because it contains equal amounts of hydrogen (H+) and hydroxide (OH-) ions.
  • Acids have more H+ than OH- ions, resulting in a lower pH value.
  • Bases have fewer H+ than OH- ions, leading to a higher pH value.
  • Bases have more OH- than H+ ions, leading to a higher pH value.
  • Strong acids completely dissociate into their component ions when they are dissolved in water, while weak acids only partially ionize.
  • Weak bases do not fully dissociate into their component ions upon dissolution in water.
  • Neutral substances contain an equal amount of H+ and OH- ions, resulting in a pH of 7.
  • Weak acids only partially dissociate into their component ions when they are dissolved in water.
  • Strong acids completely dissociate into their component ions when they are dissolved in water.
  • Strong acids completely dissociate into their component ions when they are dissolved in water, while weak acids only partially ionize.
  • Solutions containing weak acids can be made stronger by adding an acid catalyst such as sulfuric acid.
  • The pH scale measures the acidity or alkalinity of a substance on a logarithmic scale from 0 to 14.
  • Neutralization reactions occur between an acid and a base, producing salt and water as products.
  • Weak bases do not fully dissociate into their component ions when dissolved in water.
  • Salt formation occurs during the reaction between an acid and a metal oxide/hydroxide.
  • The pH scale ranges from 0 (very acidic) to 14 (very basic).
  • A solution with a pH less than 7 is considered acidic, while one greater than 7 is alkaline or basic.
  • A pH of 7 indicates that there is an equal number of hydrogen (H+) and hydroxide (OH-) ions present in the solution.
  • branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
  • the branch of chemistry concerned with the composition, structure, properties, and reactions of atoms and molecules
  • a compound containing only carbon and hydrogen
  • a substance formed by chemical combination of two or more elements
  • a substance made up of two or more elements chemically combined in fixed proportions
  • an organic substance made up of two or more monomers joined together by covalent bonds
  • a compound containing carbon and hydrogen only
  • a compound formed by the chemical combination of two nonmetals
  • a polymer formed when many small molecules called monomers join together
  • an element consisting of pure metal
  • a type of chemical bond where electrons are shared between atoms
  • a mixture of solid particles suspended in water
  • a nonmetallic element that exists as a gas at room temperature
  • a substance consisting entirely of one element
  • a substance consisting of two or more different elements chemically united in definite proportion
  • a substance consisting of one kind of atom (or ion) only
  • the process by which an atom gains or loses electrons to form ions
  • the process of adding or removing an electron from an atom to form a charged particle
  • a substance made up of one or more elements joined chemically
  • a mixture that cannot be separated into its components using physical methods alone
  • the process that occurs when an ionic substance dissolves to form positive and negative ions in solution