Fichas
Group 2
Fichas del conjunto (13)
- 1DescriptionAlkaline earth metals
- 2What type of agent are they?[RA], lose 2 e- to form 2+ cations, oxidised.
- 3Redox w/ O22Ca + O2 -> 2Cao (s)
- 4Redox w/ H2OSr(s) + H2O(l) -> Sr(OH)2(aq) + H2(g)
- 5Redox w/ dilute acidBa(s) + 2HCl(aq) -> BaCl2(aq) + H2 (g)
- 6Trend in reactivity and IEReactivity increases down a group
IE decreases down a group. - 7Oxide w/ H2OCaO + H2O -> Ca2(aq) + 2OH- (aq)
Solution of alkaline hydroxide - 8Formation of hydroxideCa2+(aq) + 2OH- -> Ca(OH)2 (S)
- 9Trends in solubility of group 2 metal hydroxidesSolubility - ability to form bonds w/ H2O
Release more OH- ions
pH/alkalinity/sol. ^ down a group - 10Mg/Ba(OH)2 pH formedMg ~ 10
Ba ~ 13 - 11Use of G2 compounds as bases - 2 examplesNeutralise acidic soil to form neutral water
Antacids for indigestion - 12Example of 1.Ca(OH)2(s) + H+(aq) -> Ca2+ (aq) + H2O (l)
- 13Examples of 2Milk of magnesia
Mg(OH)2(s) + 2HCl(aq) -> MgCl2(s) + 2H2O(l)
CaCO3(s) + 2HCl(aq) -> CaCl2(aq) + H2O (l)
Información
- Descripción
- El usuario ha eliminado su información de asignaturas Fichas sobre Group 2, creado por Usuario eliminado el 27/04/2018.
- Creado por
- Usuario eliminado · abr 2018
- Actualizado
- 27 abr 2018
- Visitas
- 7
- Historial
-
- Creado por I Shouldn't be awake · 19 abr 2018
- Copiado por I Shouldn't be awake · 27 abr 2018
- Valoración