Chemistry, 27.04.2021 04:10 lornalamkin
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: 3
Chemistry, 22.06.2019 06:00
What type of electromagnetic radiation has a shorter wavelength than blue light
Answers: 2
Chemistry, 22.06.2019 06:30
Design techniques and materials that reduce the negative environmental impact of a structure are referred to as
Answers: 2
Chemistry, 22.06.2019 12:40
Quiz1. which physical state of nitrogen has the highest entropy? a solid© b gasoc liquid
Answers: 1
Chemistry, 22.06.2019 17:30
In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j
Answers: 2
Workers who build railway tracks often use a process called thermite welding to connect pieces of tr...
Biology, 24.01.2021 04:00
Law, 24.01.2021 04:00
Mathematics, 24.01.2021 04:00
Mathematics, 24.01.2021 04:10
English, 24.01.2021 04:10
English, 24.01.2021 04:10
Mathematics, 24.01.2021 04:10
English, 24.01.2021 04:10
Biology, 24.01.2021 04:10
Mathematics, 24.01.2021 04:10
Advanced Placement (AP), 24.01.2021 04:10
Arts, 24.01.2021 04:10
English, 24.01.2021 04:10