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Physics, 22.06.2019 06:30
If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.
Answers: 3
Physics, 22.06.2019 07:40
Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?
Answers: 3
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120Β°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Computers and Technology, 27.06.2019 02:00
Mathematics, 27.06.2019 02:00
Mathematics, 27.06.2019 02:00
Chemistry, 27.06.2019 02:00
Mathematics, 27.06.2019 02:00
Mathematics, 27.06.2019 02:00
Mathematics, 27.06.2019 02:00
Mathematics, 27.06.2019 02:00