Elements and Compounds

Elements and Compounds

By Hanadi Mohammed 6/A

​a substance that occurs when atoms of two or more different elements are bonded together.​​

​Example: Suger, table salt, water, carbon dioxide.

Compounds is :-

a substance made of only one type of atom .

Example : ​iron, copper, silver, gold, hydrogen, carbon, nitrogen, and oxygen.

Elements is :-

What ​Is elements and compounds :-

​Then Let's Start The Multiple questions :-

Multiple Choice

Which Statement are true

about the compounds

• O₂

• H₂O

• C

• He

Multiple Choice

Which Statement are true

about the elements

• Copper

• Iron

• Helium

• all of above

Multiple Choice

What is elements ?

• elements are smallest unit of the matter

• element are the substance that contains two or more type of atom

• element are the substance that contains only one type of atom

• element are the cells

Multiple Choice

What is compounds ?

• Compounds are the substance that contains two or more types of atoms

• Compounds are the substance that contains one types of atoms

- Remember it -

​This is one of an element that represents in periodic table "Hydrogen 2 + Oxygen = Water"

​

This ​is knows as chemical Formula : is a group of chemical symbols and numbers that represent the elements and the number of atoms of each elements that make up of compounds.

Multiple Choice

What is the chemical formula for this picture

• C₂O

• ₂CO

• CO₂

• all non incorrect

Multiple Choice

This Formula C₁₂H₂₂O₁₁ is..........

• Table sugar

• water

• Salt

• Helium

Multiple Choice

There's 33% of nitrogen and 67% oxygen

What is the ratio of this 33:67 = ??

• 2:1

• 2:2

• 1:1

• 1:2

Multiple Choice

Write the correct Chemical formula

Red : Oxygen

Blue : Nitrogen

White : Hydrogen

• H₂ON

• OHN₂

• NHO₂

• ₂OHN

Multiple Choice

Which Modal do represent a compound with a 1:2 ratio ?

Multiple Choice

Are Hydrogen is an compound

• True

• False

Multiple Choice

There's 80% Hydrogen and 20% Carbon

How we write it as the ratio ?

• 80 : 20

  2 : 1

• 80 : 20

  4 : 1

• 20 : 80

  4 : 1

• 80 : 20

  1 : 2

Multiple Choice

What do you think this picture is .........

• Air Molecule

• Nitrogen Molecule

• Water Molecule

• Hydrogen Molecule

Multiple Choice

Are this table is correct ??

• True

• False

Poll

How was the quiz ?

• Easy

  😁

• Hard

  😱

• Normal

  😐

• Don't understand question

  😶

Thank you for participating

By Hanadi Mohammed 6/A