Chemistry Semester 1 Final

Front

What is density?

Back

Density is the mass of a substance divided by its volume, typically expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³).

Front

What happens to an object with a density less than water?

Back

An object with a density less than water (1 g/mL) will float in water.

Front

What happens to the solubility of most salts as temperature increases?

Back

For most salts, solubility increases as temperature increases.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two nonmetal atoms share one or more pairs of electrons.

Front

What is ionic bonding?

Back

Ionic bonding is a type of chemical bond that occurs when electrons are transferred from one atom to another, typically between a metal and a nonmetal.

Front

What is the chemical formula for sodium bicarbonate?

Back

The chemical formula for sodium bicarbonate is NaHCO₃.

Front

What type of elements typically form covalent bonds?

Back

Covalent bonds typically form between nonmetal elements.

Front

What is the significance of the sea of electrons model?

Back

The sea of electrons model describes metallic bonding, where electrons are delocalized and free to move, contributing to conductivity.

Front

What is the difference between a metal and a nonmetal?

Back

Metals are typically good conductors of heat and electricity, malleable, and ductile, while nonmetals are poor conductors and are often brittle.

Front

What is the role of temperature in solubility?

Back

Temperature affects solubility; generally, higher temperatures increase the solubility of solids in liquids.