Covalent Bonds/ Moles

Front

What is the formula for dinitrogen pentoxide?

Back

N₂O₅

Front

How many hydrogens are in 4H₂O?

Back

8

Front

Which of the following is NOT formed by a covalent bond? K₂S, H₂O, I₂, CO₂

Back

K₂S

Front

Which element has the highest electronegativity? Noble gases, potassium, fluorine, boron

Back

Fluorine

Front

How many total atoms are in NaC₂H₃O₂?

Back

8

Front

Define a covalent bond.

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is the difference between a covalent bond and an ionic bond?

Back

Covalent bonds involve sharing electrons, while ionic bonds involve the transfer of electrons.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

Name a molecule that is formed by covalent bonds.

Back

Water (H₂O) is formed by covalent bonds.

Front

What is the significance of the mole in chemistry?

Back

The mole is a unit that measures the amount of substance, allowing chemists to count particles by weighing them.