Atoms, Molecules & Ions Module: Compounds & Chemical Formulas

These flashcards cover key concepts related to atoms, molecules, ions, chemical formulas, and nomenclature, summarizing important learning objectives from the module.

What is the learning objective regarding chemical formulas in this module?

Distinguish between molecular and ionic compounds.

Who is Stephanie Beaupark?

A Ngugi woman and chemist who intertwines Indigenous knowledges with laboratory science.

What is the significance of molecular representations in chemistry?

They aid in understanding a molecule's size, shape, or structure, which is useful for understanding the world.

What is a property of ionic compounds?

They form crystals, are hard and brittle, have high melting and boiling points, and conduct electricity when molten or dissolved in water.

What does the criss-cross method apply to?

It applies to naming ionic compounds, particularly when determining their formulas.

How do you name acids that contain hydrogen and a non-metal in solution?

Change 'hydrogen' to 'hydro-', modify the non-metal name with the suffix '-ic', and add 'acid'.

What is the mass of one mole of a substance called?

Molar mass, measured in grams per mole (g/mol).

How are ionic compounds formed?

They form through the transfer of electrons between metals and nonmetals.

What are the properties of molecular compounds?

They tend to be gases or liquids at room temperature, have low melting and boiling points, and are generally poor conductors of electricity.

What is a polyatomic ion?

A charged molecule made of bonded atoms that act as a unit.

What is the formula mass of C8H10N4O2?

194 a.m.u.

What system is used to name oxyacids?

Replace '-ate' with '-ic' or '-ite' with '-ous' in the polyatomic ion name, and add 'acid'.

What is the general formula for sodium chloride?

NaCl.

What is the formula for magnesium fluoride?

MgF2.

What does the mole bridge in chemistry represent?

A link between mass and the number of atoms or molecules.