watch this short video for important background information: change of state https://youtu.be/xtu7r5oozou\npa…

watch this short video for important background information: change of state https://youtu.be/xtu7r5oozou\npart one: states (solid, liquid, gas)\n1. open the phet: states of matter: basics simulation (https://phet - colorado.edu/en/simulation/state - of - matter - basics)\n2. select states\nstates\n3. experiment to simulate the motion of argon atoms in a solid, liquid and a gas.\ndraw the atoms of argon in these three states:\nsolid liquid gas\nargon argon argon\nthe state of matter in which the atoms are close together but not always touching.\nthe state in which atoms are loosely packed and tend to completely fill the container.\nthe state in which atoms are tightly packed and tend to keep their shape.\n4. compare the arrangement of particles in neon, argon, oxygen, and water in all 3 states. then identify the state and substance for each drawing below (the first one is done for you).\nsolid\nneon\nneon argon\n5. starting with a solid, slowly add heat to each of the four substances. watch closely, one of them behaves differently from the others. describe the change in the motion of the particles as they are heated. which one behaves differently and how is it different?\ndescribe change:\nwhich is different? explain

watch this short video for important background information: change of state https://youtu.be/xtu7r5oozou\npart one: states (solid, liquid, gas)\n1. open the phet: states of matter: basics simulation (https://phet - colorado.edu/en/simulation/state - of - matter - basics)\n2. select states\nstates\n3. experiment to simulate the motion of argon atoms in a solid, liquid and a gas.\ndraw the atoms of argon in these three states:\nsolid liquid gas\nargon argon argon\nthe state of matter in which the atoms are close together but not always touching.\nthe state in which atoms are loosely packed and tend to completely fill the container.\nthe state in which atoms are tightly packed and tend to keep their shape.\n4. compare the arrangement of particles in neon, argon, oxygen, and water in all 3 states. then identify the state and substance for each drawing below (the first one is done for you).\nsolid\nneon\nneon argon\n5. starting with a solid, slowly add heat to each of the four substances. watch closely, one of them behaves differently from the others. describe the change in the motion of the particles as they are heated. which one behaves differently and how is it different?\ndescribe change:\nwhich is different? explain

Answer

Brief Explanations:

  1. For drawing Argon atoms in different states: In solid - Argon atoms are tightly packed in an orderly pattern; in liquid - they are more randomly arranged but still close together; in gas - they are widely spaced and move freely.
  2. To identify states and substances in the given drawings: Observe particle arrangement and spacing. Tightly - packed and orderly is solid, more random and close is liquid, widely spaced is gas.
  3. When heating the substances: In general, as heat is added, particles gain kinetic energy and move more rapidly. Water may behave differently as it has hydrogen - bonding which affects its phase - change behavior compared to noble gases (Neon, Argon) and simple diatomic gas (Oxygen). For example, water has a higher heat of vaporization due to hydrogen - bonding.

Answer:

  1. For drawing Argon:
    • Solid: Draw Argon atoms in a regular, closely - packed lattice.
    • Liquid: Draw Argon atoms in a more random but still close arrangement.
    • Gas: Draw Argon atoms far apart from each other, moving in different directions.
  2. For identifying states and substances in drawings: Analyze particle density and arrangement to classify as solid, liquid, or gas and identify the substance based on comparison with known arrangements of Neon, Argon, Oxygen, and Water.
  3. For heating substances:
    • Describe change: Particles move more quickly and vibrate or translate more vigorously as heat is added.
    • Which is different? Water.
    • Explain: Water has hydrogen - bonding which leads to unique phase - change characteristics such as a higher boiling point and heat of vaporization compared to Neon, Argon, and Oxygen which have only London dispersion forces.