12146. Compound

Compound : chalk (marble)
Chemical Name : calcium carbonate
Chemical Formula : caco3.

12147. Compound

Compound : lunar caustic
Chemical Name : silver nitrate
Chemical Formula : agno3.

12148. Compound

Compound : laughing gas
Chemical Name : nitrous oxide
Chemical Formula : n2o.

12149. Compound

Compound : chloroform
Chemical Name : tricholoro methane
Chemical Formula : chcl3.

12150. Compound

Compound : vermelium
Chemical Name : mercuric sulphide
Chemical Formula : hgs.

12151. Compound

Compound : borax
Chemical Name : borax
Chemical Formula : na2b4o7.10h2o.

12152. Compound

Compound : alcohol
Chemical Name : ethyl alcohol
Chemical Formula : c2h5oh.

12153. Compound

Compound : sugar
Chemical Name : sucrose
Chemical Formula : c12h22o11.

12154. Compound

Compound : heavy water
Chemical Name : duterium oxide
Chemical Formula : d2o.

12155. Compound

Compound : globar's salt
Chemical Name : sodium sulphate
Chemical Formula : na2so4.10h2o.

12156. Compound

Compound : t.n.t
Chemical Name : tri nitrotoluene
Chemical Formula : c6h2ch3 (no2)3.

12157. Compound

Compound : calomel
Chemical Name : mercurous chloride
Chemical Formula : hgcl.

12158. Compound

Compound : sand
Chemical Name : silicon oxide
Chemical Formula : sio2.

12159. Continent

Continent : asia
Area : 43 998 000 sq. km.
% of earth's area : 29.5
Highest point [mts] : everest [8848]

12160. Continent

Continent : africa
Area : 29 800 000 sq. km.
% of earth's area : 20
Highest point [mts] : kilimanjaro [5894]

12161. Continent

Continent : north america
Area : 21 510 000 sq. km.
% of earth's area : 16.3
Highest point [mts] : mckinely [6194]

12162. Continent

Continent : south america
Area : 17 598 000 sq. km.
% of earth's area : 11.8
Highest point [mts] : aconcagua [6960]

12163. Continent

Continent : europe
Area : 9 699 550 sq. km.
% of earth's area : 6.5
Highest point [mts] : elbrus [5663]

12164. Continent

Continent : australia
Area : 7 699 000 sq. km.
% of earth's area : 5.2
Highest point [mts] : kosciusko [2228]

12165. Continent

Continent : antarctica
Area : 13 600 000 sq. km.
% of earth's area : 9.6
Highest point [mts] : vinson massif [5140].

Fact
The official name of the St. Louis Gateway Arch is The Jefferson National Expansion Monument. The Gateway Arch looks taller than it is wider, but it is exactly 630 feet by 630 feet.      .. More >>