2020-21 Unit 1 Test Review

How many elements are in the following compound?

C₆H₁₂O₆

• 3

• 24

• 6

• 12

Element or Compound? Zn

• Element

• Compound

Element or Compound? CO₂

• Element

• Compound

How many capital letter are in an element?

• 2+

• 1

Compounds are...

• pure substances

• made of 2+ elements

• only has one capital letter

• represented by a formula

• represented by a symbol

Which is not a sign of a chemical change?

• fire/burning/combustion/rusting

• changing of state

• precipate

• unexpected color change

Chemical or Physical Change? Fireworks

• Chemical

• Physical

Chemical or physical? Salt dissolving

• chemical

• physical

Which are compounds?

• NO₃

• No

• NaCl

• H₃PO₄

• Po₄

Elements are represented by what?

• formula

• symbol

• molecule

• atoms