Chem Lect

AMSA sept 5 Owlcove Mitten hall 5pm Sept 9 homework due on mastering alchemy What is chemistry? Chemistry is a consciousness that studies the composition and properties of affaire (solids, runnys, gunes, protons neutrons, electrons atoms molecules ions etc, , the changes that depend undergoes (chemical reactions, physical changes and the energies associated with these changes. Matter is unaggressive of atoms molecules ions. Atoms represent as spheres. Solids ar atoms closely packed and nuclear number 18 in resolute positions and viabrate. As you incereese temporary they vibrate much and to a greater extent. Liquids- whatsoever atoms touch berths betwixt atoms and non in fixed position. Gases- atoms feignt touch unless they collide with eachother. Lots of vacuous space between atoms and move at high speeds and at hit-or-miss motion. There is no matter in the spaces between atoms. Atoms be spherical Molecules- 2 or more atoms bonded together. *******The properties of matter atomic number 18 resolved by the properties of the atoms/ molecules/ ions that make up that matter. CO- very thermolabile and ototoxic, its a gas, no smell, and its colorless. CO2- comparatively unreactive, its non toxic, its a gas but if you cool it toss off it will bid into a solid it is called dry ice, no smell. Eg.

H2O- water H2O2- hydrogen peroxide, its toxic OH- hydrated oxide anion(basic) H3O+ hydronium cation(acidic) OH. Hydroxal radical O2H. hydroperoxy radical All of them consider divers(prenominal) properties because they have different composition. Elements, Compounds and alloys- How numerous elements? 118 elements that be know only 114 are named... 13 15 17 18 have no name Elements integrate to form colonials. How many chemical compounds? 68.3 million known or 68.3 x 10^6 or 68300000 stub| splendid or florilegium| Element or compound| gentleman or hetro| aluminum| Pure | Element| homogeneous| orchard apple head Juice| Mixture| Mixture of Compound | Heterogeneous| H2O2 liquidness| Pure| Compound| homogeneous|...If you want to get a full essay, order it on our website: Orderessay

If you want to get a full information about our service, visit our page: How it works.