Chemistry learning education

This rain come when all of student's go to school, but student keep spirit fot the next leasson. in this time teacher will be explain about noble gas solid . Teacher: okaay good morning everybody how are you? Student: good morning sir, not bad Teacher: in this time i will explain about nobel gas solid. nobel gas solid is all of element in group VIIA. this group is dificult to reaction with another element. helium, argon, xenon, radon, neon and kripton are element of noble gas solid. this explain is concise, so i want all of you to saerch about function all of it. student : yes, sir 5 minute was gone student: sir, the function of helium is... teacher : stop, please stand up student: sorry sir, the function of helium is to fill air ballon and change hidrogen gas as fill air ballon teacher : excelent, anybody else? stundent : sir, and the another function of helium is to fill driver tube with oxigen to change nitrogen as driver tube. and then the fun

   Dilute solution is a solution   containing a relatively small quantity of  solute   as compared with the amount of  solvent . This term is the opposite of 'concentrated' Ground state is The lowest allowed energy state of an  atom ,  molecul , or  ion   An   isothermal process   is a thermodynamic process   in which the temperature of the system remains constant. The  heat transfer   into or out of the system typically must happen at such a slow rate that the  thermal equilibrium   is maintained.   Valency is  how easily an atom or radical can combine with other chemical species. This is determined based on the number of electrons that would be added, lost or share if it reacts with other atoms. Corrosion is the irreversible damage or destruction of living tissue or material due to a  c hemical   or  e lectrochemical   reaction   pH scale is measures the activity of hydrogen ions in a substance. If a substance has a pH less than 7 is said to be acidic. If the pH i

ACID RAIN Acid rain, also known as acid deposition, is caused by emissions ofsulfur dioxide   (SO2) and   nitrogen oxides   (NOx) from power plants, cars and factories. Natural sources like  volcanoes ,  forest fire   and lightning   strikes also add to the man-made pollution. SO2 and NOx become acids when they enter the atmosphere and react with water vapor. The resulting sulfuric and nitric acids can fall as wet or dry depositions. Wet deposition is precipitation: acid rain, snow, sleet or fog. Dry deposition falls as acidic particulates or gases Scientists express the acidity of acid rain using the   pH scale. The scale defines a solution's acidity, neutrality or alkalinity based on its concentration of hydrogen ions. Acids have a high concentration of hydrogen ions and a low pH. The scale ranges from zero to 14, with pure water at a neutral 7.0. Most water, however, is not exactly pure. Even clean, normal rain has a pH of about 5.6. This is because it reacts

COMPARE Compare  is an equation of the object being compare How about contrast??? CONTRAST Contrast is difference of the object being be compared DOUBLE BUBLE MAP Double buble map is how make it easy for us to compare for example :  when we say all of mean in double buble maping don't forget to use conjunction 

Matter  can be identified by its characteristic inertial and gravitational mass and the space that it occupies. Matter is typically commonly found in three different states: solid, liquid   and gas Introduction A  substance  is a sample of matter whose physical and chemical properties are the same throughout the sample because the matter has a constant composition. It is common to see substances changing from one state of matter to another. To differentiate the  states of matter  at least at a particle level, we look at the behavior of the particles within the substance.  When substances change state, it is because the spacing between the particles of the substances is changing due to a gain or loss of energy . For example, we all have probably observed that water can exist in three forms with different characteristic ways of behaving: the solid state (ice), liquid state (water), and gaseous state (water vapor and steam). Due to water's pr