Covalent Bonding Review

H₂O contains

• 2 hydrogen atoms and 1 oxygen atom

• 2 hydrogen atoms and 2 oxygen atoms.

• 1 hydrogen atom and 1 oxygen atom

• 1 hydrogen atom and 2 oxygen atoms

Tags

NGSS.MS-PS1-1

CH₃F has

• 1 Carbon atom

  3 hydrogen atoms and 1 fluorine atom

• 3 Carbon atoms

  3 hydrogen atoms and 1 fluorine atom

• 1 carbon atom 1 hydrogen atom and 3 fluorine atoms

• 3 carbon atoms, 3 hydrogen atoms and 3 fluorine atoms

PH₃ has

• 1 Phosphorus atom and 3 hydrogen atoms

• 3 Phosphorus atoms and 3 hydrogen atoms

• 1 Phosphorus atom and 1 hydrogen atoms

• 3 Phosphorus atom and 1 hydrogen atoms

Tags

NGSS.MS-PS1-1

C₄H₉OH has

• 4 Carbon atoms

  10 hydrogen atoms and 1 oxygen atom

• 4 Carbon atoms

  9 hydrogen atoms and 1 oxygen atom

• 9 Carbon atoms

  9 hydrogen atoms and 9 oxygen atom

• 1 Carbon atoms

  4 hydrogen atoms and 9 oxygen atom

The elements in CH₃F are

Tags

NGSS.MS-PS1-1

The elements in CH₄ are

Tags

NGSS.MS-PS1-1

The elements in SF₂ are

Tags

NGSS.MS-PS1-1

The elements in SiHF₃

Which 2 statements are correct?

• In a covalent bond electrons are shared, in an ionic bond electrons are gained or lost

• Ionic bonds form between metals and nonmetals. Covalent bonds form between only nonmetals

• In a covalent bond electrons are gained or lost, in an ionic bond electrons are shared

• Covalent bonds form between metals and nonmetals. Ionic bonds form between only nonmetals

Tags

NGSS.HS-PS1-3

What 2 statements are correct? (choose 2)

• The number of valence electrons determines the number of bonds formed

• Electrons needed to be gained, lost or shared to reach a full octet are equal to the number of bonds formed

• Total number of electron = total number of bonds

• Lonely electrons do not bond.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2