Jessieee

i was asked to find some daily applications related to heat.... are there any interesting and non-common ones? as those common ones were already discussed by my teacher... any gd suggestions? it need not be too complicated... thx!

abt the CO... is the same type of ms question as that abt CO2 which 1st statment is "Mg burns in CO2" 2nd is "CO is flammable"... i learnt that CO n H2 is the components of town gas, so some of my frds said it should be flamable... but i am not sure abt it... and how to classify sth as flammable or not? another question conc sulphuric acid reacts with NaCl, to give HCl fumes... asking abt what does the acid act as... A. strong acid B. oxidizing agent C. dehydrating agent D. dibasic acid... i hv chosen B, coz it seems that the others are not reli related to this reaction... but indeed i can't find out any change in the oxidation no of the matters...*o* or is it just becoz it is a strong acid!?

here's some questions from my chem exam 2day... wondering abt the ans...=P what will be produced if NaH reacts with water? is NaH flammable?! == is CO flammable!? == and also...CO2 mustn't called inert, isn't it?! coz the question is asking whether the 2 statements are correct... 1st- CO2 is used in fire extinguisher... 2nd- CO2 is inert n heavier than water... it is a mc question, a. both are correct with 2nd statment is the explaination of the 1st b. both are correct but the 2nd is not an explaination c. 1st is correct but not the 2nd d both are incorrect.... thx~ asking some stupid questions again... /.\

Jessica~ =)

but ones said that electrochemical series of the discharge of OH- or Ag is not the only factor. The concentration of the solvent, nature of electrode are also important. So to speak, very high [Ag+] & [NO3-] means relatively low concentration of [OH-] & [H+]. So comparatvely, the conc. of Ag(s) here is far higher than that of OH-, so it discharge perferentially. Second, metal electrode, such copper, silver, may enhance the release of ions especially ions like Cu, Ag, Ni, etc. but is the effect of concentration apply to the "solid" silver anode too? not only apply to ions in the solution!?

if like silver nitrate solution undergoes electrolysis, using both silver electrodes, what will be the produc at anode!? i've seen silver dissolves to form silver ions as well as oxygen is produced, which one is correct!? i know OH- is a stronger reducing agent than Ag... thx~( sorri for asking such a silly question )