Chemistry Final Exam Grade 11 December 2024

Front

What is the charge of the hydrogen carbonate ion (HCO₃⁻)?

Back

The charge of the hydrogen carbonate ion (HCO₃⁻) is 1-.

Front

What is the charge of an Oxygen ion (Oxide) in an ionic compound?

Back

The charge of an Oxygen ion (Oxide) in an ionic compound is -2.

Front

Fill in the blank: The chloride ion (Cl⁻) forms ________ acid.

Back

The chloride ion (Cl⁻) forms Hydrochloric acid.

Front

What is the correct chemical formula for Potassium Nitride?

Back

The correct chemical formula for Potassium Nitride is K₃N.

Front

Which of the following is a compound formed by Group V elements?

Back

Ammonia is a compound formed by Group V elements.

Front

Define an ion.

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions, while anions are negatively charged ions.

Front

What is the chemical formula for Sodium Chloride?

Back

The chemical formula for Sodium Chloride is NaCl.

Front

What is the significance of the octet rule in chemistry?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons, leading to greater stability.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed by the sharing of electron pairs between atoms.