Matter in Our Surroundings
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Questions and Answers

What is the primary characteristic that defines matter?

  • Occupies space and has weight
  • Has texture and melting point
  • Occupies space and has mass (correct)
  • Has color and odor

What is the state of matter in which particles are widely spaced and can move freely?

  • Plasma
  • Liquid
  • Solid
  • Gas (correct)

Which of the following is an example of a chemical property?

  • Flammability (correct)
  • Boiling point
  • Color
  • Texture

What is a characteristic of a heterogeneous mixture?

<p>Non-uniform composition (A)</p> Signup and view all the answers

What is an example of a compound?

<p>Water (H2O) (C)</p> Signup and view all the answers

Which of the following is an example of a homogeneous mixture?

<p>Sugar water (C)</p> Signup and view all the answers

Matter can only exist in two states: solid and liquid.

<p>False (B)</p> Signup and view all the answers

The color of a substance is a chemical property.

<p>False (B)</p> Signup and view all the answers

Elements are substances that consist of two or more different atoms.

<p>False (B)</p> Signup and view all the answers

Mixtures can be separated by chemical means.

<p>False (B)</p> Signup and view all the answers

The total mass of reactants is always less than the total mass of products in a chemical reaction.

<p>False (B)</p> Signup and view all the answers

Compounds have properties similar to their individual elements.

<p>False (B)</p> Signup and view all the answers

Study Notes

Matter in Our Surroundings

What is Matter?

  • Anything that occupies space and has mass
  • Examples: solids, liquids, gases, and plasma

Characteristics of Matter

  • Physical Properties: characteristics that can be observed or measured without changing the composition of the substance
    • Examples: color, odor, texture, melting point, boiling point
  • Chemical Properties: characteristics that describe the way a substance reacts with other substances
    • Examples: flammability, reactivity with acids

States of Matter

  • Solids: particles are closely packed and have a fixed shape and volume
  • Liquids: particles are close together but can move freely and take the shape of their container
  • Gases: particles are widely spaced and can move freely, taking the shape and volume of their container
  • Plasma: high-energy state of matter where atoms are ionized and electrons are free to move

Classification of Matter

  • Elements: pure substances that consist of only one type of atom
    • Examples: hydrogen, oxygen, carbon
  • Compounds: pure substances that consist of two or more different elements chemically bonded together
    • Examples: water (H2O), carbon dioxide (CO2)
  • Mixtures: physical combinations of two or more substances that are not chemically bonded
    • Examples: air, soil, blood

Types of Mixtures

  • Homogeneous Mixtures: uniform composition throughout
    • Examples: sugar water, air
  • Heterogeneous Mixtures: non-uniform composition
    • Examples: soil, blood, salad

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Learn about the characteristics, states, and classification of matter, including elements, compounds, and mixtures. Understand the physical and chemical properties of matter and its different types.

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