https://padlet.com/avemets/t7grdvkyrmwg Made with a bold sensibility en-us 2016-10-27 23:06:23 UTC 2016-10-28 08:43:54 UTC hello@padlet.com https://padletuploads.blob.core.windows.net/aws/139086086/a6ebc608a8195b3ec30f2c19d4b6f5bc/Acetyl_salicylic_acid_chemical_structure.png avemets https://padlet.com/avemets/t7grdvkyrmwg/wish/133785596 symbol: Al

Molar atomic mass: 27 g mol-1

Properties of the simple substance aluminium:
White metal – good conductor of heat and electricity
Tm = 660˚ C                 Te = 2467˚ C

* oxidizes in air
* reacts easily with hydrochloric (muriatic) acid and slowly with diluted sulphuric acid forming dihydrogen
* reacts with dichlorine

Formulae of composed substances:
AlCl3 – AlH3 – Al2O3

]]> 2016-10-27 23:14:27 UTC https://padlet.com/avemets/t7grdvkyrmwg/wish/133785596 avemets https://padlet.com/avemets/t7grdvkyrmwg/wish/133785604 symbol: K

Molar atomic mass: 39 g mol-1

Properties of the simple substance potassium:
Silver-white metal, soft like wax in normal temperature, small density
Tm = 63,6˚ C                Te = 760˚ C

* oxidizes quickly in air
* reacts energetically with water forming dihydrogen
* reacts with chloride

Formulae of composed substances:
K2O – KCl]]> 2016-10-27 23:14:35 UTC https://padlet.com/avemets/t7grdvkyrmwg/wish/133785604 avemets https://padlet.com/avemets/t7grdvkyrmwg/wish/133785647 symbol: H

Molar atomic mass: 1 g mol-1

Properties of the simple substance hydrogen:
The lightest of gases, difficult to liquefy, very little soluble in water
Tm = -260˚ C               Te = -253˚ C

* can react explosively with dioxygen
* reacts with dichlorine, sulphur, nitrogen, carbon
* reacts with metallic oxides like CuO and non-metallic oxides like SO2

Formulae of composed substances:
H2O – CH4 – HCl]]> 2016-10-27 23:15:00 UTC https://padlet.com/avemets/t7grdvkyrmwg/wish/133785647 avemets https://padlet.com/avemets/t7grdvkyrmwg/wish/133785695 symbol: Li

Molar atomic mass: 7 g mol-1

Properties of the simple substance lithium:
Silver-white metal, formable and soft. The lightest of metals: floats on oil.
Tm = 180˚ C               Te = 1342˚ C

* reacts in cold with water forming dihydrogen
* does not react with dry dioxygen under 100˚ C
* reacts with different acids forming dihydrogen
* reacts with dichlorine

Formulae of composed substances:
LiH – LiCl – Li2O

]]> 2016-10-27 23:15:28 UTC https://padlet.com/avemets/t7grdvkyrmwg/wish/133785695 avemets https://padlet.com/avemets/t7grdvkyrmwg/wish/133785739 symbol: B

Molar atomic mass: 11 g mol-1

Properties of the simple substance boron:
Black, light and very hard solid; poor conductor of heat; semi-conductor of electricity
Tm = 2079˚ C                 Te = 2550˚ C

* oxidizes in high temperature
* reacts with boiling nitric acid and sulphuric acid
* in warm and separated, reacts with dichlorine

Formulae of composed substances:
B2O3 – B2H6 – BCl3]]> 2016-10-27 23:15:55 UTC https://padlet.com/avemets/t7grdvkyrmwg/wish/133785739 avemets https://padlet.com/avemets/t7grdvkyrmwg/wish/133785782 symbol: Be

Molar atomic mass: 9 g mol-1

Properties of the simple substance beryllium:
Shiny white metal, little dense
Tm = 1278˚ C               Te = 2970˚ C

* oxidises in air with an intense luminous phenomenon
* reacts easily with hydrochloric (muriatic) acid and sulphuric acid releasing dihydrogen
* reacts with concentrated solution of sodium hydroxide

Formulae of composed substances:
BeCl2 – BeO

]]> 2016-10-27 23:16:27 UTC https://padlet.com/avemets/t7grdvkyrmwg/wish/133785782 avemets https://padlet.com/avemets/t7grdvkyrmwg/wish/133785818 symbol: M

Molar atomic mass: 24 g mol-1

Properties of the simple substance magnesium:
Silver-white metal, formable and ductile
Tm = 651˚ C                 Te = 1107˚ C

* combusts in dioxygen with a loud flash
* reacts with hydrochloric (muriatic) acid and sulphuric acid forming dihydrogen
* reacts with dichlorine

Formulae of composed substances:
MgCl2 – MgO]]> 2016-10-27 23:16:53 UTC https://padlet.com/avemets/t7grdvkyrmwg/wish/133785818 avemets https://padlet.com/avemets/t7grdvkyrmwg/wish/133788763 symbol: Br

Molar atomic mass: 80 g mol-1

Properties of the simple substance dibromine:
Volatile liquid of a dark red colour
Tm = 7,2˚ C               Te = 58,8˚ C

* reacts with dihydrogen
* reacts with metals: Na, Ca, Al, …
* reacts with white phosphorus

Formulae of composed substances:
NaBr – HBr]]> 2016-10-27 23:52:13 UTC https://padlet.com/avemets/t7grdvkyrmwg/wish/133788763 avemets https://padlet.com/avemets/t7grdvkyrmwg/wish/133788973 symbol: Cl

Molar atomic mass: 35,5 g mol-1

Properties of the simple substance chlorine:
Greenish gas, little soluble in water
Tm = -101˚ C                 Te = -34,6˚ C

* reacts violently with dihydrogen
* reacts with metals Na, Ca, Al, except for gold and platinum
* reacts with white phosphorus
* arsenic combusts spontaneously with incandescence in dichlorine

Formulae of composed substances:
NaCl – HCl

]]> 2016-10-27 23:55:13 UTC https://padlet.com/avemets/t7grdvkyrmwg/wish/133788973 avemets https://padlet.com/avemets/t7grdvkyrmwg/wish/133789010 symbol: S

Molar atomic mass: 32 g mol-1

Properties of the simple substance sulphur:
Yellow solid, electric isolator
Tm = 113˚ C                 Te = 445˚ C

* reacts with dihydrogen
* ignites in dioxygen
* reacts with difluorine, dibromine and dichlorine
* reacts with most of the metals and with phosphorus, arsenic and carbon

Formulae of composed substances:
SO2 – SO3 – H2S

]]> 2016-10-27 23:55:44 UTC https://padlet.com/avemets/t7grdvkyrmwg/wish/133789010