Halide Ions: Reducing Agents Halide ions can also act as?reducing agents?and donate electrons to another atom The halide ions themselves get?oxidised?and lose electrons The?reducing power?of the ha...
由世界聯合國協會主辦的寫作學術活動 所有涵蓋人文社科的相關領域 全球僅80篇優秀論文發表 2022ISSCY聯合國高中人文社科寫作比賽 ? 截稿在即！ 截止日期：美國東部時間2022年8月24日23:59 ISSCY聯合國高中人文社...
Group 17: Oxidising Agents Halogens react with metals by accepting an electron from the metal atom to become an ion with 1- charge Eg.? ?Ca(s) + Cl2(g) → Ca2+(Cl-)2(s) Halogens are therefore?oxidis...
Group 17: Physical Trends The group 17 elements are called?halogens The halogens have uses in water purification and as bleaches agents (chlorine), as flame-retardants and fire extinguishers (bromi...
ISSCY聯合國高中人文社科寫作比賽是一個面向全世界高中生的研究學術活動，由聯合國協會世界聯合會（WFUNA）、美國青年會（YOUTHECA USA）等其他全球非政府組織共同主辦和贊助的，作為高度競爭的活動項目，此學術...
Trends in Solubility in Group 2 Hydroxides & Sulfates Group 2 hydroxides Going down the group, the solutions formed from the reaction of Group 2 oxides with water become more?alkaline When the ...
Group 2: Physical & Chemical Trends Chemical trends All elements in Group 2 (also called?alkali earth metals)?have the two electrons in their?outermost principal quantum shell All Group 2 metal...
Group 2: Thermal Decomposition of Nitrates & Carbonates Thermal decomposition?is the breakdown of a compound into two or more different substances using?heat Thermal decomposition of carbonates...
Reactions of Group 2 Oxides, Hydroxides & Carbonates Reactions of Group 2 oxides with water All Group 2 oxides are?basic, except for BeO which is?amphoteric?(it can act both as an acid and base...
Reactions of Group 2 Elements The Group 2 elements react with oxygen, water and dilute acids Group 2 reactions table Group 2 reactions with oxygen & water chemical equations Group 2 reactions w...
Periodicity: Predicting Position & Properties If the?chemical?and?physical?properties?of an element are known, the?position?of that element in the Periodic Table can be predicted Similarly, pre...
Bonding in Period 3 Chlorides & Oxides Period 3 chlorides The bonding and structure of the Period 3 elements are summarised in the table below: The table shows that?Na,?Mg?and?Al?are metallic e...
