Chemistry Lecture Fundamentals

Comprehensive fill-in-the-blank flashcards covering basic chemistry concepts, branches of chemistry, properties of matter, and chemical reactions based on lecture notes.

__________ is the study of matter and the changes it undergoes.

Chemistry

The substance of the universe, which includes anything having mass and volume, is called __________.

Matter

While mass is always present, __________ depends specifically on the gravitational pull on matter.

Weight

__________ chemistry is defined as the study of most carbon-containing compounds.

Organic Chemistry

The study of substances and processes occurring in living things is known as __________.

Biochemistry

__________ chemistry uses mathematics and computers to understand chemical behavior and predict properties of new compounds.

Theoretical Chemistry

A(n) __________ is a substance that contains only one type of atom and cannot be broken down into something simpler.

element

A(n) __________ is the smallest unit of an element that maintains the properties of that element.

atom

A __________ is a substance made by bonding different atoms together in specific ways.

compound

In a molecule, atoms are __________ bonded together, meaning they share electrons.

covalently

The substance $O_2$ is classified as a molecule and a(n) __________, but it is not a compound.

element

An __________ property, such as mass or volume, depends on the amount of matter present.

extensive

Properties like density, boiling point, and color that do NOT depend on the amount of matter are called __________ properties.

intensive

A __________ change, such as melting or freezing, does not change the identity of a substance.

physical

The ability of a substance to undergo a change that alters its identity is a __________ property.

chemical

The state of matter known as __________ is rigid with a definite shape and a definite volume.

solid

A __________ is fluid and has a definite volume but no definite shape.

liquid

The state of matter that consists of charged particles and is found in neon lights is __________.

Plasma

Energy due to an object's motion is called __________ energy.

Kinetic

In a chemical equation, the substances you start with are called __________ and the substances you end with are called products.

reactants

When balancing a chemical equation, you must change the __________ in front, and never the subscripts.

coefficients

A solid that forms when liquids are mixed during a chemical reaction is called a __________.

precipitate

An __________ reaction is a process that absorbs heat.

Endothermic

According to the Law of Conservation of __________, energy cannot be created or destroyed, only transferred or converted.

Energy

The chemical symbol for the element Sodium is __________.

$$Na$$

The chemical symbol for the element Silicon is __________.

$$Si$$

The chemical symbol for the element Argon is __________.

$$Ar$$