Carbonates

Today we're going to keep looking at carbonates and limestone.  Answer the following in your books:

1. What do you get when you add a carbonate to and acid? (you should know this from last lesson, but check here to see if you were right).
2. What is thermal decomposition?
3. A lime kiln uses limestone to create products used for building. Use this image and the equation in it to describe what gets produced when limestone is heated:
4. Watch this video.  What are the three main stages in producing cement? 
5. What is the difference between cement and concrete?
6. What environmental impacts are there with limestone mining?
7. Complete the exam-style questions from class, using the mark scheme at the end to check your work. You should complete this at home if you don't finish in time today.

Chemistry

We'll be going through your tests from last week in the lesson on Thursday, so will be continuing with the Chemistry section of the course today.
Answer these questions in your books as usual:

1. What is chemical compound is limestone made from? Write the name and the formula.
2. Watch the video on this link. What is limestone formed from?
3. What is limestone often used for? 
4. What does limestone form when it is heated? 
5. Complete this test once you've seen the animation in question 3.
6. Watch this video, and explain the major problem with building structures from limestone:             
7. What are coccolithophores? How can they create limestone?
8. If the cliffs at Dover are made from limestone, what fossilized animals are the players standing on?
9. If limestone dissolves slowly with water or acid rain, why is it used for buildings?
10. Fill in these sentences, using what you've done already today to help you.
11. Complete the quiz after the animation here.
12. Explain how the city you build in this game is less likely to contribute to forming acid rain.

Chemistry Fundamentals

Today we're going to be summarizing what we've done so far with Chemistry.  Answer the following in your books:

1. Explain what the 'groups' of the periodic table are.
2. What do you notice about the outer shells of all the elements in group 1 (vertical column on the left hand side) of the periodic table?
3. For question 2, what charge would all the atoms of this group have when they become ions?
4. Complete this activity, and briefly describe what happens to an atom to create an ionic bond.
5. Draw a covalent bond covalent bond between 2 chlorine atoms.
6. Complete the activitiy here.  How are elements in the periodic table organised?
7. The diagram below shows the charge on an ion of each element. If group 1 is +1, have they gained or lost an electron?                                                         v
8. Try these two tests (here and here), writing down how  many protons, neutrons and electrons an atom of Al has.      
9. Using the periodic table below, give an element with a +1 ionic charge and one with a -2 ionic charge.                                                                  
10. Complete this activity. Which 2 groups could the red atom belong to?
11. Extension - In what ratio would Mg and Cl join to from a compound with a balanced charge? What type of bonds would form? Explain your answer.
12. Once you're finished, try this activity.