Chemical Bonding

Which of the following is a covalent bonding?

• MgS

• NaCl

• CH₄

• LiBr

Tags

NGSS.HS-PS1-3

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

Tags

NGSS.HS-PS1-2

Which of the following is a covalent compound?

• LiF - Lithium Fluoride
• NH₃ - Ammonia
• NaBr - Sodium Bromide
• CuCl - Copper(I) Chloride

Tags

NGSS.HS-PS1-2

What is the correct formula for this molecule?

• NH
• N₃H
• NH₃
• NH₄

Tags

NGSS.MS-PS1-1

What is the charge on an Aluminium ion?

• 3
• +3
• +2
• +1

Tags

NGSS.HS-PS1-1

When an atom loses an electron, it becomes a:

• positive ion
• negative ion
• neutral ion
• neutral atom

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What are ionic bonds?

• valence electrons transferred between atoms
• Inner most electrons transferred between atoms

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How do the following two elements bond together?
Cr³⁺  O^2-         

• CrO
• Cr₃O₂
• Cr₂O₃
• CrO₃

Tags

NGSS.MS-PS1-1

The proper formula for magnesium hydroxide:

• MgOH
• Mg₂OH
• Mg(OH)₂
• Mg₂OH₂