7th grade chemistry tutor

Lithium - 7 Silicon - 28 Copper - 65 Dysprosium - 164 Uranium - 238 Proton Number Z 3 14 29 66 92 Nucleon number A 7 28 65 164 238 Number of neutron..

Grp:1 Grp:2 Grp:3 Grp:4 Grp:5 Grp:6 Grp:7 Grp:8 H=1 - - - - - - - Li=7 Be=9.4 B=11 C=12 N=14 O=16 F=19 - Na=23 Mg=24 Al=27.3 Si=28 P=31 S=32 Cl=35.5 - K=39 Ca=40 - Ti=48 V=51 Cr=52 Mn=55 ..

Tracer technique is used a) To find the solubility of sparingly soluble salt like lead sulphate. A lead salt containing known amount of radioactive lead is dissolved in water. Sulphuric acid is added to the aqueous solution to precipitate lead as lead sulphate...

Simply stated, Green chemistry is the use of chemistry for preventing environment pollution in order to protect human health. It may give the impression that it is branch of chemistry involving plants, which is not tru..

Introduction - Organic chemistry is that branch of chemistry which deals with the study of compounds of carbon with hydrogen (hydrocarbons), and their derivatives. Presently about five million organic compounds are know..

The branch of science, which deals with the study of matter, its composition, its properties and the changes that it undergoes in composition as well as in energy during various processes, is defined as chemistry. It has been further divided into different branches depending upon speciali..

The branch of science, which deals with the study of matter, its composition, its properties and the changes that it undergoes in composition as well as in energy during various processes, is defined as chemistry. It has been further divided into different branches depending upon sp..

Organic Chemistry..

Organic Chemistry..

Nuclear Chemistry..