Chemistry - Pure substances and mixtures

Chemistry - Pure substances and mixtures

What is the definition of the word “Element”?

A substance that is made by only one type of element

What is the definition of “Pure substance”?

A substance that contains only one type of element or compound

What is the definition of “Mixture”?

A substance that contains two or more types of elements or compounds that are not bonded

Is this statement true or false?

(The chemical property of an element or a compound in a mixture is the same as when they are found in a pure substance)

True, the chemical property remains the same

Is this statement true or false?

(The chemical properties of each element or compound in a mixture remain unchanged)

True, the chemical properties does not change