Flashcard 2 -Bonds and Chemistry

Front

What is chemical energy?

Back

Chemical energy is a type of potential energy stored in the bonds of chemical compounds, such as atoms and molecules.

Front

What charge does each hydrogen atom have in a water molecule?

Back

Each hydrogen atom in a water molecule has a partial positive charge.

Front

What type of bond do oxygen, hydrogen, carbon, and nitrogen usually form?

Back

These elements usually form covalent bonds.

Front

Why does Neon not form bonds with other atoms?

Back

Neon does not form bonds because its outermost valence shell is full.

Front

What type of chemical reaction is represented by the equation 2Al2O3 → 4 Al + 3 O2?

Back

This is a decomposition reaction.

Front

Define ionic bond.

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions.

Front

What is a covalent bond?

Back

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

Front

Explain the octet rule.

Back

The octet rule states that atoms tend to form bonds in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

What is a hydrogen bond?

Back

A hydrogen bond is a weak attraction between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom.

Front

What is the difference between a polar and nonpolar molecule?

Back

A polar molecule has a net dipole moment due to the presence of polar bonds, while a nonpolar molecule does not have a net dipole moment.