Matter & pH

Atoms have three main parts: protons, neutrons and:

Many products estheticians use are the result of chemically uniting two different elements, which is known as:

All matter that is now living or was alive at onetime, with carbon present, falls within the scientific division of:

In what range is hair, skin, and nails?

What is the smallest complete unit of an element?

Basic substances that cannot be broken down into simpler substances are called:

The term used to identify anything that occupies space and has weight is called:

pH stands for:

A bond uniting two amino acid groups that create proteins are:

When solution has an equal number of hydrogen and hydroxide ions, the solution is considered:

Matter with definite weight and volume but no definite shape is called:

What is the most common element in the universe?

Pure substances are made of only one type of:

On the pH scale, numbers less than 7 indicate a(n):