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Ionic Salts quiz

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Termini in questo insieme (15)

  • What is the definition of a salt in chemistry?
    A salt is the ionic product formed from the neutralization reaction between an acid and a base, typically alongside water.
  • What determines whether a salt solution is acidic, basic, or neutral?
    The nature of the salt depends on the properties of its cation and anion; their ability to act as acids or bases determines the solution's pH.
  • What is a cation and what are the three main types discussed in the lesson?
    A cation is a positively charged ion; the three main types are transition metals, main group metals, and positive amines.
  • What charge must a transition metal cation have to be considered acidic?
    A transition metal cation must have a charge of +2 or higher to be acidic; otherwise, it is neutral.
  • What charge must a main group metal cation have to be considered acidic?
    A main group metal cation must have a charge of +3 or higher to be acidic; if less, it is neutral.
  • Are group 1A and 2A metals ever acidic in salts?
    No, group 1A and 2A metals are always neutral in salts because their charges (+1 and +2) do not meet the minimum requirement for acidity.
  • How do tin (Sn) and lead (Pb) behave in terms of acidity as main group metals?
    Tin and lead can act as either +2 or +4 cations; only the +4 form is acidic, while the +2 form is neutral.
  • What is the rule for positive amines in salts?
    Positive amines are always considered acidic when present as cations in salts.
  • How do you determine if an anion is basic or neutral?
    Add an H+ to the anion; if it forms a weak acid, the anion is basic, but if it forms a strong acid, the anion is neutral.
  • What type of acid is formed when adding H+ to BrO- and what does this indicate about BrO-?
    Adding H+ to BrO- forms a weak oxyacid (HBrO), indicating that BrO- is a basic anion.
  • What type of acid is formed when adding H+ to Br- and what does this indicate about Br-?
    Adding H+ to Br- forms a strong binary acid (HBr), indicating that Br- is a neutral anion.
  • What is the relationship between the strength of an acid and the basicity of its conjugate base?
    A weak acid has a stronger conjugate base, while a strong acid has a very weak conjugate base.
  • What happens to the solubility of acidic ions in basic solutions?
    The solubility of acidic ions increases in basic solutions.
  • What is the general rule for identifying the acidity of transition metal cations in salts?
    Transition metal cations are acidic if their charge is +2 or higher; otherwise, they are neutral.
  • How do you identify whether an anion is basic using acid strength rules?
    Add H+ to the anion and determine if the resulting acid is weak; if so, the anion is basic, otherwise it is neutral.