Test B: Chemical Bonding and Covalent Test Corrections

Which of type of bond is illustrated in the image above?

• covalent bond

• ionic bond

• metallic bond

Tags

NGSS.MS-PS1-1

Which of the following is the correct form for the chemical formula for Dinitrogen trioxide?

• N₃O₂

• N₃⁺O⁻²

• N₂O₃

Tags

NGSS.MS-PS1-1

What is the type of bond is illustrated by the molecule NaCl? Na is group 1 and Cl is group 17.

• ionic

• covalent

• metallic

Which of the following is the name of this compound: Be₈F₄?

• Octafluorine tetraberyllide

• Octaberyllium tetrafluoride

• Tetrafluorine octaberyllide

Tags

NGSS.MS-PS1-1

In a covalent bond, the valence electrons are always _____________.

• gained

• lost

• shared

To form a compound, how many fluorine (group 17) atoms would need to bond with an oxygen (group 16) atom?

• 1
• 3
• 4
• 2

Tags

NGSS.MS-PS1-1

What are the only particles of the atom that are involved in chemical bonding?

• protons

• neutrons

• valence electrons

Which of the following is NOT a sign of a chemical change?

• A) solid melting into a liquid

• B) color change

• C) thermal energy/ heat produced

Tags

NGSS.MS-PS1-2

The image above shows an example of which of the following?

• physical changes

• chemical changes

• covalent bonding

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The light and dark circles in the pictures below represent different types of atoms. Which picture BEST represents a pure compound?

• Image 1

• Image 2

• Image 3

• Image 4

Tags

NGSS.MS-PS1-1