basic chemistry

13-09-2011 Mrs. Berta

Bismillahirrohmanirrohiim

how to make report

1. problem --> observation
2. literatur study
3. hipotesis
4. arrange the procedure
5. hold the eksperiment
6. collecting date
7. analysis
8. conclusion

Matter : could occupy the space. have masses

1. liquid
2. solid
3. gas
4. plasma ( tv, laptop, and so on )

  

 matter 

1. homogen substance

• pure substance-----------> :) element : a collection of some of the same atom. can not be simplified      by ordinary matter. very strong (chemical reaction)

                                                    :) compound :a collection of some of the different atoms. shape into different constituent elements. example: salt (NaCl2) form of white crystals. whereas in the flats by the Na-rich form of wire and gaseous Cl2 (chemical reaction)

• solution----------> :)  homogenous mixture : combination of several atoms that are still visible and can be split again. foe exc : syrup (Phisical reaction)

2. heterogen substance
  different compose cant mix.different composition