2. In your own words, explain the main ideas of Dalton's atomic theory. 3. According to Dalton's theory, is it possible to convert atoms of one element into atoms of another? Explain.
4. The law of conservation of mass was introduced in Unit 2 Use Dalton's atomic theory to explain this law.

(İkinci cümlelerin cevaplarının altı çizilmiştir)

1. My friend didn't   remember to bring her purse.

2. She asked me, "How much money do you have in your purse?"

3.  I lent her some money.

4. There are lots of shops in the town.

5. First we went into a shop that's name was Stella's.

6. The clothes in Stella's were too expensive for us

7. We didn't buy anything in Stella's.

8. My mother's friend owns the shop next door.