Easy Round_G9_Quiz Bee

What is the illustration tells us about the substance?

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Which of these is an element?

• Salt (NaCl)

• Water (H20)

• Oxygen (O)

• Coffee

Which of these is a mixture?

• Aluminium (Al)

• Nitrogen (N)

• Sand

• Carbon Dioxide (CO2)

Which of the following is classified as a pure substance?

• Helium

• ketchup

• Fruit punch

• Lemonade

What is the correct elemental symbol for Krypton?

• K

• F

• Kr

• Ne

How many different elements are in this chemical formula: C₂H₂ClK₃

• 6

• 2

• 8

• 4

What is an Atom?

• The smallest piece of a living thing.

• The largest particle or piece of a pure substance.

• The smallest particle or piece of a pure substance.

• Two compounds put together.

What is a Compound?

• One element and more than one atom.

• Two or more atoms combined; a number greater than one.

• Two or more elements combined; more than one capital letter.

• wo or more small particles joined together.

Which is a property of a metal?

• It is brittle

• It is malleable

• It is a good Insulator

• It has a dull appareance

Who arranged the first periodic table.

• Mosely

• Mendeleev

• Einstein

• Bohr