Bio Chapter Two

Proteins that act as biological catalysts are called

The elements or compounds the enter into a chemical reaction are called products

What are the three particles of an atom?

What bond is formed when two atoms share electrons?

What is an attraction between molecules of different substances?

Describe the composition of a water molecule.

The pH scale indicates the concentration of H+ ions in a solution

A solution is composed of 2 or more elements physically mixed together but not chemically

A catalyst speeds up the rate of a chemical reaction by lowering its activation energy

The elements or compounds produced by a chemical reaction are

A compound contains two or more elements chemically combined in a fixed ratio.

Organic chemistry is the study of comounds that contain bonds between oxygen atoms

What type of bond transfers an electron from one atom to another?

Carbon atoms have four valence electrons allowing them to form weak bonds with other elements

What are found in the space surrounding the nucleus of an atom?

An attraction between molecules of the same substance

Isotopes are atoms of the same element with the same number of protons and a different number

The energy that is needed to get a reation started is called

Carbohydrates are compounds made up of carbon, hydrogen, and oxygen in a 1:2:1 ratio