Chemistry Advanced ECA- Cycle 3 Review

Front

What distinguishes molecular solids from covalent network solids?

Back

Molecular solids have weak forces; covalent network solids have strong covalent bonds.

Front

Which compound has a stronger bond strength: NaCl, MgO, LiCl, or KBr?

Back

MgO has stronger bond strength.

Front

What type of bond forms if two atoms have an electronegativity difference of 0.3?

Back

Non-polar covalent bond.

Front

What is the formula for the compound formed by magnesium ions and nitrogen ions?

Back

Mg₃N₂.

Front

What is a binary acid?

Back

An acid composed of hydrogen and a nonmetal.

Front

Define ionic bond.

Back

A bond formed by the transfer of electrons from one atom to another, resulting in the attraction between oppositely charged ions.

Front

What is the octet rule?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

Front

What is the difference between polar and non-polar covalent bonds?

Back

Polar covalent bonds have an unequal sharing of electrons, while non-polar covalent bonds have equal sharing.

Front

What is a covalent network solid?

Back

A solid where atoms are bonded by a network of covalent bonds, resulting in a rigid structure.

Front

What is the significance of electronegativity in bond formation?

Back

Electronegativity determines how strongly an atom attracts electrons, influencing bond type and polarity.