Chemistry, 27.04.2021 04:00, Desinfektionsmittel
Workers who build railway tracks often use a process called thermite welding to connect pieces of track. Thermite is a mixture of aluminum metal (Al) and ferric oxide (Fe2O3). A worker places thermite between two pieces of track and then burns it to form aluminum oxide (Al2O3) and iron (Fe). As the reaction happens, the air around the mixture becomes so hot that the two pieces of track fuse together. Is this chemical exothermic or endothermic?
Answers: 1
Chemistry, 22.06.2019 09:30, jewelz5887
1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle
Answers: 1
Chemistry, 22.06.2019 12:30, meghan2529
The melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?
Answers: 1
Chemistry, 22.06.2019 19:30, simihehe
Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons
Answers: 2
Workers who build railway tracks often use a process called thermite welding to connect pieces of tr...
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