Phys Sci 9 UNIT #3 Bonds, Naming

What is true about all covalent bonds?

• They are ususally made of a metal and a nonmetal

• They can be used as flotation devices

• They are electrically charged

• They share electrons in bonds

What kind of bond is NH₃?

• Neither

• Both

• Covalent

• Ionic

When Barium (Ba²⁺) and Chlorine (Cl^1-) combine to form an ionic bond, the resulting formula will be:

• BaCl

• Ba₃Cl₃

• Ba₂Cl₂

• BaCl₂

In ___ ___, electrons are gained by certain atoms and lost by other atoms.

• Nuclear Bonds

• Metalurgic Bonds

• Ionic Bonds

• Covalent Bonds

What kind of bond is Cl₂?

• Covalent

• Ionic

• Both

• Neither

What kind of bond is H₂O ?

• Covalent

• Ionic

• Both

• Neither

What is the chemical formula for Nitrogen Dioxide?

• Nitro1Oxo2

• NO2

• (NO)2

• 1N20

The element Barium has 2 valence electrons. What is the most likely charge of a Barium ion?

• 4+

• 4-

• 2+

• 2-

When Fluorine (F^1-) and Magnesium (Mg²⁺) combine in an ionic bond, the resulting formula will be

• Mg₃F₃

• Mg₂F₂

• MgF₂

• MgF

Lithium is a metal with an oxidation level of 1+ and Oxygen is a nonmetal with an oxidation number of 2-. Which chemical formula represents the compound formed by these 2 elements?

• LiO₂

• Li₂O

• Li₃O

• LiO