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Calculate the Molecule Mass Relative of the Compound 25 Dec 2012 | 04:30 pm
Molecular mass relative (Mr) calculated from the atomic mass number (Ar) of the elements in the molecule. Ar express the weight of the element relative to 1/12 atomic mass of C-12 isotope. Here is the...
Acid Overview 23 Dec 2012 | 06:24 am
An acid simply defines as a substance in water solutions dissociate yielding hydrogens ions as only a positive ions. Some acids dissociate in one step yield one hydrogen ion called monobasic acid. Her...
CHARACTERISTICS OF LIVING ORGANISMS 23 Dec 2012 | 06:12 am
Biology is the study of living things. But, life is very difficult to define.For example, we often find difficulty to ensure if the virus is a living thing or a non-living thing. We must know some cha...
Energy, Heat and Temperature 23 Dec 2012 | 05:37 am
Energy, in fact, is never lost: a fundamental law of the universe is the conservation of energy, which states that in a system isolated from all other outside factors, the total amount of energy remai...
Register Forum Kaskus 14 Aug 2012 | 08:48 pm
Cara daftar (register di forum kaskus): 1. Bukalah web kaskus (www.kaskus.co.id) 2. Pilih dan klik "Sign Up" Klik disini untuk melihat gambarnya. 3. Selanjutnya isikan bulan, tanggal dan tahun kelahir...
Ionic Bonding 21 Jun 2011 | 06:54 pm
Normal 0 false false false IN X-NONE X-NONE MicrosoftInternetExplorer4 The first explanation of chemical bonding was suggested by the properties of salts. Salts are generally crystalline soli...
The Stability of Elements 21 Jun 2011 | 06:48 pm
Normal 0 false false false IN X-NONE X-NONE MicrosoftInternetExplorer4 Let we see the atomic structure of noble gases. They are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) an...
Flame Colour of Group IA (Group 1) 21 Jun 2011 | 06:38 pm
Flame colors are produced from the movement of the electrons in the metal ions present in the compounds. For example, a sodium ion in an unexcited state has the structure 1s2 2s2 2p6. When you heat it...
CHARACTERISTICS OF LIVING ORGANISMS 26 Apr 2011 | 05:57 pm
Biology is the study of living things. But, life is very difficult to define.For example, we often find difficulty to ensure if the virus is a living thing or a non-living thing. We must know some cha...
Ionization Energy 8 Sep 2009 | 12:18 am
Ionization energy is the energy required by an atom in the form of gas to remove one electron to form positive ions. The lower the ionization energy, the easier an electron released an atom to form n...
