Biochemistry

Front

What is a product in a chemical equation?

Back

A product is a substance that is formed as a result of a chemical reaction, appearing on the right side of the arrow in a chemical equation.

Front

What is a reactant in a chemical equation?

Back

A reactant is a substance that undergoes a chemical change in a reaction, appearing on the left side of the arrow in a chemical equation.

Front

How does temperature affect the rate of a chemical reaction?

Back

Increasing the temperature generally increases the rate of a chemical reaction, as particles move faster and collide more often.

Front

What is atomic mass?

Back

Atomic mass is the weighted average mass of an atom's isotopes, typically measured in atomic mass units (amu). It is calculated by adding the number of protons and neutrons in the nucleus.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the difference between protons, neutrons, and electrons?

Back

Protons are positively charged particles found in the nucleus, neutrons are neutral particles also in the nucleus, and electrons are negatively charged particles that orbit the nucleus.

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 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 an ion?

Back

An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net electrical charge.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are important for determining how an atom will bond with other atoms.