FALL FINAL REVIEW - HONORS CHEMISTRY - HHS

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.

Front

How do you calculate the mass number of an atom with 21 protons and 24 neutrons?

Back

Mass number = Protons + Neutrons = 21 + 24 = 45.

Front

What type of intermolecular force is present in HCl?

Back

The strongest type of intermolecular force in HCl is dipole-dipole.

Front

What happens to a sodium atom when it loses an electron?

Back

It becomes positively charged, forming a sodium ion (Na+).

Front

What is a physical intensive property?

Back

A physical intensive property is a property that does not depend on the amount of substance, such as color or density.

Front

What is the difference between physical and chemical properties?

Back

Physical properties can be observed without changing the substance's identity, while chemical properties describe a substance's ability to undergo chemical changes.

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more reactants combine to form a single product.

Front

What is the formula for iron(III) oxide?

Back

The formula for iron(III) oxide is Fe2O3.

Front

What is the definition of 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 role of electrons in chemical bonding?

Back

Electrons, particularly valence electrons, are involved in forming chemical bonds between atoms.