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    Understandings

    ● Atoms of different elements combine in fixed ratios to form compounds, which have different
    properties from their component elements.
    Guidance
    Names and symbols of the elements are in the IB data booklet in Section 5.
    ● Mixtures contain more than one element and/or compound that are not chemically bonded
    together and so retain their individual properties.
    ● Mixtures are either homogeneous or heterogeneous.

    Applications and skills 

    ● Deduction of chemical equations when reactants and products are specified.
    Guidance
    Balancing of equations should include a variety of types of reactions.
    ● Application of the state symbols (s), (l), (g), and (aq) in equations.
    ● Explanation of observable changes in physical properties and temperature during changes of state.
    Guidance
    ● Names of the changes of state – melting, freezing, vaporization (evaporation and boiling),
    condensation, sublimation and deposition – should be covered.
    ● The term ‘latent heat’ is not required.

    Inquiry questions 

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

    ​Producing and Balancing SYMBOL equations

    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. ​​
    Picture
    Practice

    PhET Simulation: Balancing Chemical Equations

    Task:
    1. Complete the introduction and balance all 3 reactions 
    ​2. Play a game 

    Balancing equations

    Watch the video and stop from time to time to make useful notes for yourself 
    ​
    Complete the questions as you watch the video 
    ​
    Complete the questions as you watch the video ​
    Quiz time: Please complete the following problems and submit your answers using the form below

    Problems:
    1. Balance the following equations.
    a. NaBr + F2 à NaF + Br2
    b. K + H2O à KOH + H2
    c. H2O2 à H2O + O2
    d. CuSO4 + KCN à Cu(CN)2 + K2SO4
    e. P4 + O2 à P4O6
    f. CH4 + O2 à CO2 + H2O
    g. N2 + F2 à NF3
    h. AlBr3 + K2SO4 à KBr + Al2(SO4)3

    2. Write and balance the equation for each of the reactions.
    a. Potassium and chlorine react to form potassium chloride.
    b. Solid aluminum and aqueous hydrochloric acid react to form hydrogen gas and aqueous aluminum chloride.

    Nitrogen and hydrogen, both in the gas phase, react to form gaseous ammonia.

      Submit your work 

      Max file size: 20MB

    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

    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 the what is happening during the following parts of the graph. Ensure that you use the concept of Kinetic energy and if you can 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
    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. 

    Mixtures 

    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