Which of the following compounds is formed by ionic bonding?

• C₂H₆

• CO₂

• Na₂O

• F₂

Tags

NGSS.HS-PS1-2

Which statement correctly describes what happens to Li and Cl atoms when they bond?

• Li loses 1 valence electron and becomes a negative ion, Cl gains 1 valence electron and becomes a positive ion.

• Li loses 1 valence electron and becomes a positive ion, Cl gains 1 valence electron and becomes a negative ion.

• Li gains 1 valence electron and becomes a negative ion, Cl loses 1 valence electron and becomes a positive ion.

• Li gains 1 valence electron and becomes a positive ion, Cl loses 1 valence electron and becomes a negative ion.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When lithium and oxygen bond together

• Li forms a positive ion, O forms a negative ion.

• Li forms a negative ion, O forms a positive ion.

• Li and O share electrons.

• Li forms an anion, and O forms a cation.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which atom will form an anion when forming an ionic bond?

• Sr

• Li

• Ca

• O

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When an atom of hydrogen and an atom of fluorine bond together

• the H will be partially positive, because it has a higher electronegativity than F.

• the H will be partially negative, because it has a higher electronegativity than F.

• the F will be partially positive, because it has a higher electronegativity than H.

• the F will be partially negative, because it has a higher electronegativity than H.

Tags

NGSS.HS-PS1-2

Which of the following molecules has the most polar bond between the bonded atoms, in term of greatest END?

• HF

• HCl

• HBr

• HI

Tags

NGSS.HS-PS1-1

Which of the following compounds is formed by covalent bonding?

• Na2S

• AlCl3

• CH4

• LiCl

Tags

NGSS.MS-PS1-1

Which of the following molecules contains a nonpolar covalent bond?

• H2O

• HF

• F2

• NH3

Which of the following molecules contains a polar covalent bond?

• H2

• PH3

• F2

• NH3

Using electronegativity differences, predict the type of bond present between the following: a. sodium and fluorine b. chlorine and hydrogen c. carbon and sulfur d. carbon and fluorine e. phosphorus and oxygen f. hydrogen and fluorine g. copper and sulfur h. iodine and bromine

• The question asks to predict the type of bond (ionic, covalent, or polar covalent) based on electronegativity differences for pairs of elements.

• The question asks to predict the type of bond (metallic, ionic, or covalent) based on electronegativity differences for pairs of elements.

• The question asks to predict the type of bond (hydrogen, ionic, or covalent) based on electronegativity differences for pairs of elements.

• The question asks to predict the type of bond (van der Waals, ionic, or covalent) based on electronegativity differences for pairs of elements.