8th grade chemistry projects

In this representation one views the carbon-carbon bond directly end-on and represents the two carbon atoms by a circle. Lines going to the center of the circle represent substituents on the front carbon, and lines going to the edge of the circle represent substituents on the rear carbon. The adva..

The intersection of the horizontal and vertical lines represents the chiral center (the chiral carbon). The horizontal lines indicate bonds directed towards the reader. The vertical lines indicate bonds directed away from the reader. By rotating through an angle of 180 o within the plan..

In this representation one views the carbon-carbon bond from an oblique angle. The spatial orientation are indicated by employing heavy tapered lines for substituents coming out of the page, normal lines for substituents in the plane of the page, and dashed lines for substituents going back behind..

. They consist of metals. 7. The Zero group consists of 'Noble gases'. 8. There are 7 horizontal rows in the periodic table. These are called the periods. 9. In a period, the number of valence shell remains the same for all elements. However, the number of electrons in the valence shell i..

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 Fe=56 Co=..

Electricity is produced by converting the potential energy of water (from a height) into the kinetic energy of flowing water. Hydroelectricity or hydroelectric power is produced, when large quantities of water stored in dams at a suitable height, are released to fall from a height. A dynamo is con..

By analogy to the formation of these two methyl glucosides, glucose exists in two forms a -D-glucose and b -D-glucose. These two forms are not mirror images of each, hence are not enantiomers. The six membered cyclic structure of glucose was established by R.D Haworth. The six membered cyclic struc..

. In each cluster a large number of stearate groups clump together in a spherical manner such that the hydrocarbon parts interact with one another and the COO - groups remains projected in water. fig 7.9 - Aggregation of RCOO - ions to form a mice..

This allotrope of sulphur is prepared by melting roll sulphur in a dish. The molten sulphur is allowed to cool slowly. The top layer solidifies first and forms a crust. Two holes are made in the crust with the help of a heated nail. The molten sulphur is poured out through one of the holes. Then w..

a) Hang the compound from the most oxidised carbon atom. b) The group where the carbon atom forms a part of a chain is to be kept away from you. c) The remaining two groups should be projecting towards yo..