Pretest- Chemical Reactions

Ionic bonding involves......

• The transfer of protons

• The transfer of electrons

• The transfer of neutrons

• None of the above

A covalent compound is a bond between ....

• 2 metals

• A metal and a nonmetal

• 2 nonmetals

• 2 metalloids

What type of bond would be formed between Sulfur and Oxygen?

• An ionic bond

• A covalent bond

• A metallic bond

• These element will not bond.

What type of bond would be formed between Be and F?

• An ionic bond

• A covalent bond

• A metallic bond

• These elements will not bond

How many valence electrons does Oxygen have?

• 2

• 4

• 6

• 8

What is the name of the compound formed when Na bonds with Cl?

• Chlorine Sodium

• Sodium Chlorine

• Sodium Chloride

• Sodium Monochloride

How many hydrogen atoms and how many oxygen atoms are in a molecule of H₂O?

• 1 Hydrogen atom and 2 oxygen atoms

• 2 hydrogen atoms and 1 oxygen atoms

• 1 hydrogen atom and 1 oxygen atom

• 2 hydrogen atoms and 2 oxygen atoms

Why do the noble gases NOT form compounds readily?

• They have no electrons

• They have empty outer energy levels.

• They have seven electrons in their outer energy levels.

• Their outer energy levels are completely filled with electrons.

Which of the following is a nonmetal?

• iron
• oxygen
• silver
• copper

An ionic bond forms when atoms ___________ electrons.

• gain
• share
• increase
• transfer