elements, compounds and mixtures

• What is an element?

  An element is a pure substance made of one type of atom.
• Why can't an element be broken down further?

  Because it consists of only one type of atom.
• Give an example of an element.

  Hydrogen
• What is a compound?

  A compound is formed when two or more elements combine chemically.
• What happens to the properties of elements when they form a compound?

  They create a new material with unique properties.
• What is the chemical formula for water?

  $H_{2}O$
• Can a compound be broken down into its elements?

  Yes, a compound can be broken down chemically.
• How do the components of a mixture behave?

  Each component retains its individual properties.
• What is the composition of an element?

  Single type of atom
• What are the key differences between elements, compounds, and mixtures?

  Elements are pure substances, compounds are chemically bonded, and mixtures are physically combined.
• What distinguishes a compound from a mixture?

  A compound has chemically bonded components, while a mixture does not.
• Give an example of a mixture.

  Salt water
• What is the significance of the visual representation of mixtures at the molecular level?

  It clarifies the differences between elements, compounds, and mixtures.
• What type of substance is a substance made of iron and oxygen atoms chemically bonded together?

  A compound
• Why is it important to differentiate between elements, compounds, and mixtures?

  It helps in understanding their properties and behaviors in chemical reactions.
• How does the composition of a mixture differ from that of a compound?

  A mixture has a variable composition, while a compound has a fixed composition.
• What is the significance of the fixed ratio in compounds?

  The fixed ratio determines the unique properties of the compound.
• How do the properties of a compound differ from those of its constituent elements?

  Compounds have unique properties different from their elements.
• List examples of mixtures.

  Salt water, air
• What does the visual representation of mixtures at the molecular level illustrate?

  It clarifies the differences between elements, compounds, and mixtures.
• List examples of elements.

  Hydrogen, Oxygen, Carbon
• List examples of compounds.

  Water ($H_{2}O$), Carbon Dioxide ($CO_{2}$)
• What are the properties of compounds?

  Compounds have unique properties created by chemical bonding.
• What are the properties of elements?

  Elements possess fixed properties as they consist of a single type of atom.
• What is the composition of a mixture?

  Variable ratio of components
• How can a mixture be separated?

  A mixture can be separated by physical means.