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Tuesday, March 21

  1. page Thickness of Aluminum Foil edited ... determine the radius and diameter of a length of copper wire. EQUIPMENT: ... - rectangular…
    ...
    determine the radius and diameter of a length of copper wire.
    EQUIPMENT:
    ...
    - rectangular samplesamples of aluminum
    1 - length of copper wire
    metric ruler
    (view changes)
    10:17 am
  2. page Chemistry Labs edited ... Experiment 14 - Properties of Transition Metals and their Compounds Experiment 15 - Moles of …
    ...
    Experiment 14 - Properties of Transition Metals and their Compounds
    Experiment 15 - Moles of Iron and Copper
    Experiment 16 - Reactivity of Group 2 Metals
    (view changes)
    10:16 am

Monday, March 20

  1. page Reactivity of Group 2 Metals edited The Reactivity of Group 2 Metals INTRODUCTION Group 1 is the most reactive group of metals. The …
    The Reactivity of Group 2 Metals
    INTRODUCTION
    Group 1 is the most reactive group of metals. The Group 1 metals get more reactive the lower they are in the group.
    Group 2 metals are also reactive but they are less reactive than the corresponding Group 1 elements in the same period. since two rather than one electron need to be lost in order to gain noble gas configuration.
    . This experiment compares their reactivity.
    {Grp 2 elements.jpg} The transition metals have the following properties in common:
    they form colored compounds
    they are good conductors of heat and electricity
    they can be hammered or bent into shape easily
    they are less reactive than alkali metals such as sodium
    they have high melting points - but mercury is a liquid at room temperature
    they are usually hard and tough
    they have high densities.
    PURPOSE:
    In this experiment you will:
    Extend your knowledge of the Periodic Table by examining the several transition metals and their compounds.
    INSTRUCTIONS:
    Each person in your lab group must read every page in this online procedure. Along the way, there will be questions that you must answer.
    Designate one person in your group as the Data Recorder. This person should open the Google document Experiment 14 - The Properties of the Transition Metals and their Compounds for the approved answer template.
    When this Google document opens, sign in to your Google account.
    From the FILE Menu, choose Make a copy...
    From the FILE Menu, choose Rename...and rename the document as follows: Exp 14 - Period (1, 3, 6, or 8) - Group #.
    Share this document with the members of your group and with Mr. Skubis at HSTChemistry@gmail.com.
    As a group, answer all questions. Remember to use complete sentences and be mindful of grammar, spelling, and punctuation.
    REMEMBER: **Plagiarism** is a form of **Academic Dishonesty** which carries harsh consequences. DO YOUR OWN WORK!
    EQUIPMENT:
    Various transition metal samples
    Various transition metal solutions
    Ammonium Hydroxide *Use Caution - See SAFETY note below*
    Test tubes
    Medicine dropper
    Magnet
    SAFETY
    Wear eye protection and aprons at all times.
    The transition metal compounds may be harmful or irritant, as may their solutions, depending on the concentration.
    Ammonia vapor irritates eyes, lungs and the respiratory system. DO NOT INHALE AMMONIA VAPORS!
    PROCEDURE
    Procedure
    Obtain a sample of copper metal from the teacher’s desk.
    Make and record qualitative observations about the metal. Include properties such as color, shape, and density. You should also Google each sample for more information to include in your report.
    Test the metal samples for hardness and ability to bend without breaking. Complicated apparatus is not needed for this! Record your answers qualitatively.
    Determine if the sample is magnetic using a bar magnet.
    Take approximately 2 mL copper(II) sulfate and put in a test tube.
    Take about 25 mL of ammonia solution in a beaker and take it to your lab station.
    Using a medicine dropper, slowly add the ammonia solution, a few drops at a time, to the test tube containing the copper (II) sulfate. Record your observations.
    Add several more drops of ammonia solution until there is no further change. Record all observations.
    Write a balanced chemical equation for the reaction you observed. You will need to Google this information.
    Repeat with the other sample of transition metals and their salt solutions.
    CLEAN UP
    Return all solid metals to the teacher desk.
    All solutions can be washed drown the drain with plenty of water.
    Wash and dry all glassware.
    Wipe your lab station.
    Wash your hands.

    (view changes)
    5:59 am
  2. 5:48 am

Monday, March 6

  1. page Chemistry Labs edited ... Experiment 13 - A Time for Slime Experiment 14 - Properties of Transition Metals and their Co…
    ...
    Experiment 13 - A Time for Slime
    Experiment 14 - Properties of Transition Metals and their Compounds
    Experiment 15 - Moles of Iron and Copper
    (view changes)
    5:51 am
  2. page Moles of Iron and Copper edited The Properties Moles of the Transition Metalsand their Compounds Iron and Copper INTRODUCTIO…
    The PropertiesMoles of the Transition Metalsand their CompoundsIron and Copper
    INTRODUCTION
    The transition metals are placed in the center of the periodic table, between groups 2 and 3. Most of the commonly used metals are there, including iron, copper, silver and gold.
    ...
    INSTRUCTIONS:
    Each person in your lab group must read every page in this online procedure. Along the way, there will be questions that you must answer.
    ...
    document Experiment 1415 - The PropertiesMoles of the Transition MetalsIron and their CompoundsCopper for the
    When this Google document opens, sign in to your Google account.
    From the FILE Menu, choose Make a copy...
    ...
    follows: Exp 1415 - Period
    Share this document with the members of your group and with Mr. Skubis at HSTChemistry@gmail.com.
    As a group, answer all questions. Remember to use complete sentences and be mindful of grammar, spelling, and punctuation.
    (view changes)
    5:51 am

Friday, March 3

  1. page Properties of the Transition Metals and their Compounds edited ... Procedure Obtain a sample of copper metal from the teacher’s desk. ... and density. You s…
    ...
    Procedure
    Obtain a sample of copper metal from the teacher’s desk.
    ...
    and density. You should also Google each sample for more information to include in your report.
    Test the metal samples for hardness and ability to bend without breaking. Complicated apparatus is not needed for this! Record your answers qualitatively.
    Determine if the sample is magnetic using a bar magnet.
    (view changes)
    4:59 am

Thursday, March 2

  1. page Moles of Iron and Copper edited ... INTRODUCTION The transition metals are placed in the center of the periodic table, between gr…
    ...
    INTRODUCTION
    The transition metals are placed in the center of the periodic table, between groups 2 and 3. Most of the commonly used metals are there, including iron, copper, silver and gold.
    {Google ChromeScreenSnapz033.jpg} The transition metals are shaded yellow.
    The transition metals have the following properties in common:
    they form colored compounds
    (view changes)
    9:07 am
  2. page Moles of Iron and Copper edited The Properties of the Transition Metalsand their Compounds INTRODUCTION The transition metals ar…
    The Properties of the Transition Metalsand their Compounds
    INTRODUCTION
    The transition metals are placed in the center of the periodic table, between groups 2 and 3. Most of the commonly used metals are there, including iron, copper, silver and gold.
    {Google ChromeScreenSnapz033.jpg} The transition metals are shaded yellow.
    The transition metals have the following properties in common:
    they form colored compounds
    they are good conductors of heat and electricity
    they can be hammered or bent into shape easily
    they are less reactive than alkali metals such as sodium
    they have high melting points - but mercury is a liquid at room temperature
    they are usually hard and tough
    they have high densities.
    PURPOSE:
    In this experiment you will:
    Extend your knowledge of the Periodic Table by examining the several transition metals and their compounds.
    INSTRUCTIONS:
    Each person in your lab group must read every page in this online procedure. Along the way, there will be questions that you must answer.
    Designate one person in your group as the Data Recorder. This person should open the Google document Experiment 14 - The Properties of the Transition Metals and their Compounds for the approved answer template.
    When this Google document opens, sign in to your Google account.
    From the FILE Menu, choose Make a copy...
    From the FILE Menu, choose Rename...and rename the document as follows: Exp 14 - Period (1, 3, 6, or 8) - Group #.
    Share this document with the members of your group and with Mr. Skubis at HSTChemistry@gmail.com.
    As a group, answer all questions. Remember to use complete sentences and be mindful of grammar, spelling, and punctuation.
    REMEMBER: **Plagiarism** is a form of **Academic Dishonesty** which carries harsh consequences. DO YOUR OWN WORK!
    EQUIPMENT:
    Various transition metal samples
    Various transition metal solutions
    Ammonium Hydroxide *Use Caution - See SAFETY note below*
    Test tubes
    Medicine dropper
    Magnet
    SAFETY
    Wear eye protection and aprons at all times.
    The transition metal compounds may be harmful or irritant, as may their solutions, depending on the concentration.
    Ammonia vapor irritates eyes, lungs and the respiratory system. DO NOT INHALE AMMONIA VAPORS!
    PROCEDURE
    Procedure
    Obtain a sample of copper metal from the teacher’s desk.
    Make and record qualitative observations about the metal. Include properties such as color, shape, and density.
    Test the metal samples for hardness and ability to bend without breaking. Complicated apparatus is not needed for this! Record your answers qualitatively.
    Determine if the sample is magnetic using a bar magnet.
    Take approximately 2 mL copper(II) sulfate and put in a test tube.
    Take about 25 mL of ammonia solution in a beaker and take it to your lab station.
    Using a medicine dropper, slowly add the ammonia solution, a few drops at a time, to the test tube containing the copper (II) sulfate. Record your observations.
    Add several more drops of ammonia solution until there is no further change. Record all observations.
    Write a balanced chemical equation for the reaction you observed. You will need to Google this information.
    Repeat with the other sample of transition metals and their salt solutions.
    CLEAN UP
    Return all solid metals to the teacher desk.
    All solutions can be washed drown the drain with plenty of water.
    Wash and dry all glassware.
    Wipe your lab station.
    Wash your hands.

    (view changes)
    9:07 am

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