Unit 7 Chemistry study guide for nails

An _____ is the simplest form of chemical matter and cannot be broken down into a simpler substance without the loss of identity.

• Element

• ion

• molecule

• atom

All matter in the universe is composed of basic units called?

• solutions

• elements

• atoms

• molecules

Compound molecules are made by combining ____ from different elements.

• atoms

• Ions

• anions

• molecules

____ products that are used in the nail industry are chemicals.

• none of the

• most

• all

• some

Everything that you can touch and see, except for _____ is a chemical.

• food and oxygen

• electricity and light

• water and electricity

• water and oil

A/an ____ is the smallest chemical particle of an element that keeps the same properties of that element.

• Atom

• anion

• ion

• molecule

All matter is made of?

• solution

• emulsions

• surfactants

• chemicals

A/an ____ is the basic unit of a chemical element.

• Atom

• Anion

• ion

• molecule

The letter symbol for the element potassium is?

• S

• T

• P

• K

Plants and animals and all living things, including things that were once alive contain?

• carbon

• oxygen

• helium

• water