Writing and Naming Binary Compounds

Which is true of ionic compounds?

• They are electrically neutral when dissolved in a solution

• They are made by sharing electrons

• They are made of metals and nonmetals

• They are good conductors as solids

Which is true of covalent compounds?

• They share electrons

• They are good conductors

• They are electrically charged

• They are made of a metal and nonmetal

What do H₂O and Br₂ have in common?

• They are all ionic

• They are all covalent

• They are positively charged

• They are negatively charged

Ionic bonds have a ______________ melting/boiling point.

• low

• moderate

• variable

• high

Crystalline arrangement describes

• Covalent bonds

• Ionic bonds

• Metallic bonds

Which set of atoms will form an ionic compound?

• One calcium and one oxygen atom

• Two hydrogen and one oxygen atom

• One oxygen atom with one oxygen atom

• Two phosphorous atoms with five oxygen atoms

Which pair of atoms will form a covalent molecule?

• One copper and two fluorine atoms

• One sodium and on fluorine atom

• One oxygen and one iron atom

• One oxygen and two hydrogen atoms

Covalent solutes are considered non-electrolytes. What does this mean for the conductivity of the solution?

• Non-electrolytes do not dissolve in water and cannot conduct electricity

• Non-electrolytes dissolve and completely dissociate in water and conduct electricity

• Non-electrolytes dissolve and completely dissociate in water and do not conduct electricity

• Being a non-electrolyte refers to the type of bonding and has no bearing on conductivity

How is electron movement related to the bonding in sodium chloride?

• The electrons are shared when orbitals overlap

• Electrostatic sharing of electrons allow bonding

• Electrons exchange creating ions to form an ionic bond

• Orbital overlap occurs between atoms and electrons are exchanged

What is the difference in oxidation #'s and valence electrons?

• Oxidation numbers represent the # of electrons in the outermost shell and valence electrons are represented by periods.

• Oxidation #s tell how many electrons are in an element and valence electrons are the ones lost or gained in a reaction

• Valence electrons are the electrons in the outermost energy level and oxidation #'s tell the charge of an ion after electrons are gained or lost

• They represent the same thing