Elements of life

    Cards (124)

    • Hydrogen carbonate ion
      HCO3-1
    • Ammonia ion
      NH4+1
    • Hydroxide ion
      OH-1
    • Lead (II) Ion
      Pb+2
    • Strontium ion
      Sr2+
    • Aluminium ion
      Al3+
    • Copper (II)
      Cu2+
    • Nickel (II)
      Ni2+
    • Tin(II)
      Sn2+
    • Decomposition of metal carbonate
      Metal oxide + carbon dioxide
    • Oxide ion
      O2-
    • Specific heat capacity
      Energy = mass x Specific heat capacity x temperature
    • Acid + Hydroxide
      Salt + water
    • Metal + acid
      Salt + hydrogen
    • Metal + water
      Metal hydroxide + hydrogen
    • Oxide + acid
      Salt + water
    • Nitrate ion
      N3-
    • Acid + carbonate
      Salt + water + carbon dioxide
    • Carbonate ion
      CO32-
    • Sulfate ion
      SO42-
    • Hydrogen sulfate ion
      HSO42-
    • Phosphate ion
      PO43-
    • Silver ion
      Ag +
    • Sulfate ion
      S2-
    • Zinc ion
      Zn 2+
    • Why are absorption spectra unique for each element?
      Electrons move at unique energy levels
    • What does the equation energy equals frequency times wavelength represent?
      It relates energy to light properties
    • What is metallic bonding?
      Outer electrons merge to form a lattice
    • What factors affect the strength of metallic bonding?
      Charge and size of the ions
    • Why do metallic bonds have high melting points?
      Due to strong electrostatic forces
    • What causes ionic bonding?
      Transfer of electrons between metal and non-metal
    • Why do ionic compounds have high melting points?
      Strong electrostatic forces between ions
    • When can ionic compounds conduct electricity?
      In aqueous state, not fixed state
    • What is covalent bonding?
      Sharing of electrons between non-metal ions
    • Why do covalent compounds have low melting points?
      Weak intermolecular forces between molecules
    • Do covalent compounds conduct electricity?
      No, they have no free electrons
    • What is the flame ion color of lithium?
      Bright red
    • What is the flame ion color of sodium?
      Yellow
    • What is the flame ion color of potassium?
      Lilac
    • What is the flame ion color of calcium?
      Brick red