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    Understandings
    Structure 1.1.1
    • Elements are the primary constituents of matter, which cannot be chemically broken down into simpler substances.
    • Compounds consist of atoms of different elements chemically bonded together in a fixed ratio.
    • Mixtures contain more than one element or compound in no fixed ratio, which are not chemically bonded and so can be separated by physical methods. 
    Structure 1.1.2
    • The kinetic molecular theory is a model to explain physical properties of matter (solids, liquids and gases) and changes of state. 
    Structure 1.1.3
    • The temperature, T, in Kelvin (K) is a measure of average kinetic energy Ek of particles. 

    Outcome of learning + clarifications   
    • Distinguish between the properties of elements, compounds and mixtures. 
    • Solvation, filtration, recrystallization, evaporation, distillation and chromatography should be covered. The differences between homogeneous and heterogeneous mixtures should be understood. 



    • Distinguish the different states of matter.
    • Use state symbols (s, , g and aq) in chemical equations. 
    • Names of the changes of state should be covered: melting, freezing, vaporization (evaporation and boiling), condensation, sublimation and deposition. 
    ​
    • Interpret observable changes in physical properties and temperature during changes of state. Convert between values in the Celsius and Kelvin scales. 
    • The kelvin (K) is the SI unit of temperature and has the same incremental value as the Celsius degree (°C). ​

    Inquiry questions 
    How are chemical equations deduced and balanced?
    What is the definition of elements, compounds, and mixtures?

    ​​Producing and Balancing SYMBOL equations

    Balancing equation demo 

    Please note that the equations below may be unbalanced 
    Synthesis: (Oxidation of Magnesium)
    Mg + O2 -> MgO

    Decomposition: (Elephant toothpaste)
    H2O2 ->  H2O + O2 

    Double replacement: (Precipitation reaction) 
    Pb(NO3)2 + KI  ->   PbI2  +  KNO3

    Combustion: (Whoosh bottle)
    C2H5OH  + O2  ->   H2O + CO2 

    TASK:
    Balance the equations above

    Balancing equations

    Task:
    Understand how to balance symbol equations and learn what not to do. This video takes you through the process and completes several examples to deepen your understanding. 

    Ensure that you are work through the examples in video on your own as you watch.     ​​

    Atom economy

    This video explains atom economy using organic substances by working through set problems. 

    Ensure that you work through the problems on your own as you watch the video and pause the video when it asks you to do so.     ​​

    Fire and Flame Uni Lecture 
    Task1:
    • Watch the videos 
    • Take notes of the reactions and balanced equations 
    Task 2: 
    • Find images of reactions, as well as the balanced equation​​

    PhET Simulation: Balancing Chemical Equations
    Task:
    1. Complete the introduction and balance all 3 reactions 
    ​2. Play a game 

    Balancing equations
    Quiz time: 
    1. Complete all the question in the quiz 
    2. Self assess your answers by checking after raking the quiz which answer you have answered incorrectly
    3. If you have answered some questions incorrectly., seek advice from your classmates to solve the problem 

    States of Matter and Diffusion 

    Energy changes between states of matter 
    This video is reminding you of the states of matter and the energy changes involved in the state changes. It also explains what states substances are at room temperature and why, which is key to identify states symbols for reactants and products in symbol equations. 

    TASK 1:
    Identify the state symbols in the following equations:
    ​
    CH4 + 2O2 -> CO2 + 2H2O (remember here that this is a combustion equation and the CO2 and H2O are not at room temperature)

    TASK 2:
    Explain what is happening during the following parts of the graph. Ensure that you use the concept of kinetic energy and breaking of inter-particle forces in your explanation. 
    1) From A to B
    2) From B to C
    3) From C to D
    4) From D to E
    5) From E to F
    Answer: You can find the answer in the Pearson DP Chemistry text book on page 13
    Blog task:
    Click on the Blog button below and write a comment about the difference between boiling and evaporation. If you are unsure , please watch the video again.
    In addition, read at least one of your classmates comments and respond to your classmate what he or she explained well and what he or she could explain better. 

    homogenous and heterogenous mixtures 

    only needed to watch until 3:50min. 
    This video discusses the different types of homogenous and heterogenous mixtures. 
    Task:
    Take notes in the diagram of all the different types of mixtures 

    States of matter in cooking - Sugar 
    This video is linking to the theme of Unit 3 which is all about cooking.