Category: General Chemistry Library

• Reaction Involving Chemical Solutions

  Reaction in chemical solution and Aqueous solutions and solubility

• Sulfur and Sulfur Oxides

  Sulfur and sulfur oxides Sulfur is a non-metallic element that is found in the second-period group 16 in the periodic table. From the group number, you could see that it has 6 valence electrons two in the 3s orbital and four in the 3p orbital. Sulfur is a very reactive element that accepts two electrons…

• Nitrogen and Nitrogen compounds

  Nitrogen and nitrogen compounds: Nitrogen is an element that is located in the second period and the group number 15 of periodic table. Form the group number we could see that nitrogen has 5 valence electrons Two in 2s and three in 2p, this means it needs another 3 electrons to fill the 2p orbital…

• Chemistry of Halogens (Part 2)

  I. Hydrogen Halides Test: The reaction of halides with silver nitrate in dilute nitric acid results in the formation of silver halide precipitates. The colors of the precipitates are as follows: II. Reactions of Halide Ions with Concentrated Sulfuric Acid: a. The reaction of halide ions with concentrated sulfuric acid produces poisonous gases. b. In…

• Halogens Chemical Properties (Group 17)

  Halogens Chemical Properties (Part 2 – Chapter 12): Reaction with Hydrogen The reactivity of halogens with hydrogen decreases as we move down the group. Similarly, the stability of hydrogen halides decreases as we move down the group. For instance, hydrogen iodide (HI) can be decomposed by introducing a red-hot wire into a sample of hydrogen…

• Physical Properties of Group 17 (Halogens)

  Physical properties of group 17 (halogens) (chapter 12 part 1) The first 5 elements are called halogens Group 17 has 7 valence electrons distributed between s and p orbitals where s orbital is completely filled and p orbital has 5 electrons Group 17 acquires one electrons to reach electron configuration of nearest noble gas electron…

• Group 2 Chemical Properties (Part 2 )

  Group 2 chemical properties (chapter 11 – part 2): Group 2 elements, when exposed to oxygen, undergo combustion and form metal oxides. The oxides of Group 2 elements dissolve in water, resulting in the formation of alkaline solutions. The flame color test can be utilized to identify Group 2 elements. Beryllium reacts with steam at…

• Group 2 Physical Properties (Part 1)