Science

• Cardinality


  The number of elements in a set
• Cardinality number of set A

  Denoted by N(A), is the number of elements in set A
• Set A


  • 1, 3, 5, 7
• Set D


  • A, E, I, O, U
• N(A) = 4
• N(D) = 5
• Set M


  The set of odd numbers between 1 and 3
• M = {}
• N(M) = 0
• Solution


  A homogeneous mixture of two or more components in which the particle size is smaller than 1 nm
• Components of a solution

  • Solvent
  • Solute
• Solvent


  The part of a solution that is present in the greatest amount. It is a liquid that the solute is dissolved in.
• Solute


  A substance that is dissolved in a solution. The amount of solvent in a fluid solution is greater than the amount of solute.
• Example of solvent


  • Water
• Example of solute


  • Sugar
  • Salt
• A solution is a mixture of solvent and solute
• Solvents are usually liquids
• The word "solvent" is derived from the Latin word "solv", which means "to loosen or unite"