1.) a bar of zinc metal is immersed in a solution of copper 2 sulfate.2.) small piece of sodium metal is added to distilled h2o( whats formula for sodium metal)3.) solid barium oxide is added to distilled water( is barium oxide soluble)4.) solid ammonium carbonate is heated5.) solution of manganese 2 sulfate and ammonium sulfide are mixed
It allows objects to be moved horizontally with less energy expenditure than dragging them. Assuming you have vaguely flat ground. There's the invention of the roller (like rolling things on tree-trunks) which substitutes rolling friction for sliding friction but you have to keep picking up the rollers and moving them. Then there's the invention of the axle, where you get sliding friction back again but you can pick your materials and grease the bearings - no more moving logs. Wagons, Ho!
It made possible the great children's song The wheels on the bus go round and round, round and round, round and round. The wheels on the bus go round and round. :D
Because it's converting a rotational motion to a linear motion.
no one is conscious the day nor hour however the daddy in heaven.i've got heard Jack Van Impe merchandising this on his software implying that the rapture will ensue then.that's up there like while he stated which you will see your pets in heaven.Jack Van Impe do no longer even say that he's a prophet.in the adventure that your pastor is asserting this and is telling different this that basically incorrect.If people are attempting to him as a prophet which he's obtrusive no longer.they're deceiving themselves.
1.) It's a redox: Zn + CuSO4 --- ZnSO4 + Cu 2.) Adding alkali metals to water always results in formation of his hydroxide plus hydrogen. This reaction are always quite exothermic and potentially dangerous: 2Na + 2H2O -- 2NaOH + H2(g) 3.) Oxide + water - Hydroxide BaO + H2O -- Ba(OH)2 4.) When you heat a carbonate, you'll always obtain an oxide and CO2 but in this: (NH4)2CO3 --- 2NH3 + CO2 + H2O 5.) Double displacement reaction: MnSO4 + (NH4)2S --- MnS + (NH4)2SO4 Have a nice day :-)
