Chem 101 Final Review Flashcards

Flashcards for Chem 101 Final Review

What is the Scientific Method?

A systematic way to investigate the world, involving observation, hypothesis, experimentation, and conclusion.

What are Significant Figures (Sig Figs)?

Digits in a measurement that are known with certainty plus one estimated digit.

What is Basic Units of Measurement?

Basic units and abbreviations for measurements of length, mass, time, etc.

What is Density?

A measure of mass per unit volume.

What is Temperature Scale?

The degree of hotness or coldness of a substance.

What is Matter?

Anything that has mass and takes up space.

What is the Law of Conservation of Mass?

Mass is neither created nor destroyed in a chemical reaction.

What is Chemical Composition?

Describes the composition of a chemical compound in terms of the relative numbers of atoms of each element.

What is an Empirical Formula?

The simplest whole-number ratio of atoms in a compound.

What is a Molecular Formula?

The actual number of atoms of each element in a molecule.

What is Atomic Number (Z)?

The number of protons in the nucleus of an atom.

What is Mass Number (A)?

The total number of protons and neutrons in the nucleus of an atom.

What is a Binary Compound?

A compound composed of two different elements.

What is an Ionic Compound?

A compound formed between a metal and a nonmetal.

What is a Covalent Compound?

A compound formed when nonmetals combine.

What is Prefix in nomenclature?

Prefixes used to indicate the number of atoms of an element in a compound (e.g., mono, di, tri).

What are Binary Acids?

Acids containing hydrogen and another element.