4th grade chemistry tutor

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 ..

3rd Period n = 3 Long period 8 Atomic number 11 to 18 4th Period n= 4 Long period 18 Atomic number 19 to 36 5th Period n = 5 Long period 18 Atomic number 37 to 54 *6th Period n = 6 Long period 32 Atomic number 55 to 86 ..

Air as a Mixture - As we know that we cannot live without air even for a single minute. We live in a vast ocean of air, which extends upwards for over 1000 km. Apart from providing us air to breathe, this blanket of air traps the sun's heat that is essential for life on the earth, and also acts as ..

Importance of Chemistry - 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 differ..

Green Chemistry - 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 true. Green chemistry..

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..

Buffers find extensive use in analytical chemistry, viz., both in qualitative and quantitative analysis. For example, qualitative analysis of Group III and Group IV is done in solutions buffered by NH 4 Cl + NH 4 OH. Buffers are used in the removal of interf..

Some Basic Concepts of Chemistry - A dynamic environment of matter and material surrounds man. Since his birth he has been exposed to these changing surroundings. His curiosity to understand his surroundings and the events occurring around him, has led him to systematically enquire and co..

Environmental Chemistry..

Environmental Chemistry..