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KCSE Chemical Bonding and Molecular Geometry — practice questions — page 2

Explore 35 free Chemical Bonding and Molecular Geometry questions in KCSE Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Chemical Bonding and Molecular Geometry questions and exercises with answers

Showing questions 31–35 of 35.

Ionic or covalent?Read the answer and worked solution →Bonding terms bingoRead the answer and worked solution →Catch the ionic solidsRead the answer and worked solution →Which bond does it describe?Read the answer and worked solution →Spot the odd oneRead the answer and worked solution →

Worked practice questions

Ionic or covalent?

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Items
  1. Group
    Ionic
    Item
    Metal + nonmetal
  2. Group
    Covalent
    Item
    Two nonmetals
  3. Group
    Ionic
    Item
    High melting pt
  4. Group
    Covalent
    Item
    Low melting pt
  5. Group
    Ionic
    Item
    Conducts molten
  6. Group
    Covalent
    Item
    Shares electrons
  7. Group
    Ionic
    Item
    Ion lattice
  8. Group
    Covalent
    Item
    Molecules form
Groups
  1. Item
    Ionic
  2. Item
    Covalent
Instructions
Steer each falling clue onto its own bond type. Alike clues merge and grow.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 7 "Chemical Bonding and Molecular Geometry", section Electronegativity and Bond Type_

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Bonding terms bingo

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Clues and terms
  1. Clue
    Ion left positive after an atom gives up valence electrons
    Item
    Cation
  2. Clue
    Ion left negative after an atom takes in extra electrons
    Item
    Anion
  3. Clue
    Valence pair on an atom that no bond makes use of
    Item
    Lone pair
  4. Clue
    One shared pair of electrons joining two atoms
    Item
    Single bond
  5. Clue
    Two shared pairs of electrons joining two atoms
    Item
    Double bond
  6. Clue
    Three shared pairs of electrons joining two atoms
    Item
    Triple bond
  7. Clue
    Main group atoms bond until eight valence electrons surround them
    Item
    Octet rule
  8. Clue
    Energy to pull a mole of ionic solid apart into gaseous ions
    Item
    Lattice energy
  9. Clue
    Energy to break a mole of one named covalent bond in gas
    Item
    Bond energy
Instructions
Read each call, tap its term on the board. Three in a line is bingo.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 7 "Chemical Bonding and Molecular Geometry", section Lewis Symbols_

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Catch the ionic solids

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Items
  1. Matches the category
    Yes
    Item
    Rigid
  2. Matches the category
    Yes
    Item
    Brittle
  3. Matches the category
    Yes
    Item
    Crystalline
  4. Matches the category
    Yes
    Item
    High melting
  5. Matches the category
    Yes
    Item
    Water soluble
  6. Matches the category
    Yes
    Item
    Conducts molten
  7. Matches the category
    No
    Item
    Soft and waxy
  8. Matches the category
    No
    Item
    Low melting
  9. Matches the category
    No
    Item
    Gas at room temp
Category
Ionic solid properties
Instructions
Move the basket with the arrows. Catch only what fits the category.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 7 "Chemical Bonding and Molecular Geometry", section 7.1 Ionic Bonding_

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