| Shubham munjal asks : process of building complex substances through utilization of food |
| Rohan manjrekar asks : is there any other name given for substances which directly go into vapour state from solid (sublime)? |
| Arjan wasu asks : Helooo Mam or Sir ...... question is for charging bodies by friction do the bodies need not be of different substances???? |
Hy
For charging two bodies by friction one must be +vely charged and another one -vely chrged
so for this the substances must be different..
if the substances are same then only heat would be produced with very neglijable charge..
| Viswagopal s asks : XHCO3 & YCO3 r 2 substances of equal molar masses decomposing as shown 2XHCO3 on heating gives water,CO2,X2CO3 YCO3 on heating gives YO,CO2 16.8g of XHCO3gave 6.2gmixture of water & CO2 16.8g of YCO3 gave 8.8g of CO2.Identify the substances |