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, 21.06.2019 20:30
If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared
Answers: 1
Chemistry, 23.06.2019 03:00
Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions
Answers: 1
Chemistry, 23.06.2019 03:00
In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas
Answers: 2
Chemistry, 23.06.2019 04:40
Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?
Answers: 1
Workers who build railway tracks often use a process called thermite welding to connect pieces of tr...
Business, 12.01.2020 04:31
Mathematics, 12.01.2020 04:31
Mathematics, 12.01.2020 04:31
History, 12.01.2020 04:31
English, 12.01.2020 04:31
English, 12.01.2020 04:31
Computers and Technology, 12.01.2020 04:31
Mathematics, 12.01.2020 04:31
Mathematics, 12.01.2020 04:31
Chemistry, 12.01.2020 04:31
Health, 12.01.2020 04:31