Honors Chemistry First Semester Test (2024-2025)

Front

What is a fission reaction?

Back

A fission reaction is a nuclear reaction in which the nucleus of an atom splits into smaller parts, releasing a large amount of energy.

Front

How do you calculate the number of moles in a substance?

Back

To calculate the number of moles, use the formula: Moles = Mass (g) / Molar Mass (g/mol).

Front

What happens to beryllium when it forms an ionic bond?

Back

Beryllium loses 2 electrons to achieve a stable electron configuration.

Front

Which type of element typically forms positive ions?

Back

Metals typically form positive ions by losing electrons.

Front

How do you calculate the mass of a compound from moles?

Back

Mass (g) = Moles x Molar Mass (g/mol).

Front

What is a combustion reaction?

Back

A combustion reaction is a chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of heat and light.

Front

What is the molar mass of carbon dioxide (CO2)?

Back

The molar mass of CO2 is approximately 44.01 g/mol.

Front

What is an ionic bond?

Back

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

Front

What is the difference between fission and fusion reactions?

Back

Fission involves splitting a heavy nucleus into smaller nuclei, while fusion involves combining light nuclei to form a heavier nucleus.

Front

How many grams are in 0.523 mol of AlPO4?

Back

63.78 g.