C12 Chemical Analysis

What is a formulation?

• A simple mixture designed as an useless product

• A mixture designed as a useful product

• Any mixture

What is the test for oxygen?

• turns limewater cloudy

• relights a glowing splint

• bleaches damp litmus paper white

• makes a squeaky pop

What is the test for carbon dioxide?

• turns limewater cloudy

• relights a glowing splint

• bleaches damp litmus paper white

• makes a squeaky pop

What is the test for chlorine?

• turns limewater cloudy

• relights a glowing splint

• bleaches damp litmus paper white

• makes a squeaky pop

What is the test for hydrogen?

• turns limewater cloudy

• relights a glowing splint

• bleaches damp litmus paper white

• makes a squeaky pop

In chemistry what is a "pure" substance?

• No additives
• A mixture
• Made of one element/compound only
• A formulation

How can pure substances be distinguished from impure ones?

• Melting/boiling points
• Colour
• Smell
• Temperature

Describe the melting and boiling points of pure substances

• Range of temperature
• Fixed
• Different temperature
• One very specific temperature

Describe the melting and boiling points of impure substances

• Fixed
• Range of temperature
• Different temperature
• One very specific temperature

Give an example of a formulation

• Chlorine
• Acetone
• Paint
• Oxygen