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• Sifat Koligatif Larutan
• Redoks dan Elektrokimia
• Ikatan Kimia
• Sistem Periodik Unsur
• Laju Reaksi
• Stoikiometri
• Struktur Atom

Chemistry is the science of elements and how unsru combine to form compounds. Although there are more than 10 million chemical compounds, in fact just more than a hundred are contained in the wild. Approximately 5000 years ago, workers in Bronze is the first chemist. They found ways to turn sand into the form of steel metal. Approximately 1500 years later, the chemists in egypt find out how the establishment of such metals into gold. Although no one has managed to turn it into gold, a technique they use to provide information on the basics of modern chemistry. After that, humans have been studying the properties of matter and make a lot of new materials that are useful for the development of technology.

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Download soal UAN/UAS/EBTANAS

DOWNLOAD SOAL UAN/UAS/EBTANAS

• Soal Kimia 1986
• Soal Kimia 1988
• Soal Kimia 1989
• Soal Kimia 1990
• Soal Kimia 1991
• Soal Kimia 1992
• Soal Kimia 1994
• Soal Kimia 1998

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download soal UN kimia SMA

download Teori soal kimia ujian SMA

All bonds can be explained by quantum theory, but, in practice, simplification rules allow chemists to predict the strength, directionality, and polarity of bonds. The octet rule and VSEPR theory are two examples. More sophisticated theories are valence bond theory which includes orbital hybridization and resonance, and the linear combination of atomic orbitals molecular orbital method which includes ligand field theory. 

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