Elements & Compounds Final Review

______________ are two or more different substances mixed together that can be physically separated.

• salt

• elements

• mixtures

Mixtures can be ______________ separarted.

• physically

• chemically

• neither

You find elements on the ___________ __________.

• periodic table

• internet

• food labels

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?

• Compound
• Element
• Mixture
• None of the Above

• 1
• 2
• 3
• 4

• 1
• 2
• 3
• 4

Element is a

• pure substance
• compound
• mixture
• molecule

Is sugar (C₁₂H₂₂O₁₁) an element or a compound?

• Element
• Compound

When two or more elements combine chemically, they form _________.

• DNA

• atoms

• molecules

• compounds