Chemistry Final Exam Review Fall 2024

Front

What are the properties of metals?

Back

Metals are good conductors of heat and electricity, malleable, ductile, and typically have a shiny appearance.

Front

What is a limiting reactant?

Back

A limiting reactant is a substance that is completely consumed in a chemical reaction, determining the maximum amount of product that can be formed.

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms for each element is the same on both sides.

Front

What is the visible light spectrum?

Back

The visible light spectrum is the range of wavelengths of light that can be seen by the human eye, typically from about 400 nm (violet) to 700 nm (red).

Front

How many valence electrons are in an atom with the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁵?

Back

There are 7 valence electrons in this atom.

Front

What is the definition of a chemical reaction?

Back

A chemical reaction is a process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.

Front

What is the difference between an ionic bond and a covalent bond?

Back

An ionic bond is formed when electrons are transferred from one atom to another, resulting in charged ions, while a covalent bond is formed when two atoms share electrons.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What is an acid?

Back

An acid is a substance that donates protons (H⁺ ions) in a solution and has a pH less than 7.

Front

What is a base?

Back

A base is a substance that accepts protons (H⁺ ions) or donates hydroxide ions (OH⁻) in a solution and has a pH greater than 7.