18. What is the density of a substance with a mass of 0.90 kg and a volume of 1.2 mL? 21. An oxygen tank in the lab has a pressure of 12 atm at 250C. If the pressure inside the gas tank exceeds 25 atm, the tank will explode. If a fire occurs in the lab, raising the temperature of the gas inside the cylinder to 398oC, will the tank explode?
Answers: 2
Chemistry, 22.06.2019 12:40
In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false
Answers: 2
Chemistry, 22.06.2019 21:30
What is happening when the water inside a kettle heats up and begins to boil
Answers: 1
Chemistry, 22.06.2019 22:30
Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.
Answers: 1
18. What is the density of a substance with a mass of 0.90 kg and a volume of 1.2 mL?
21. An oxygen...
Biology, 12.11.2020 03:30
Mathematics, 12.11.2020 03:30
Mathematics, 12.11.2020 03:30
Social Studies, 12.11.2020 03:30
Mathematics, 12.11.2020 03:30
Mathematics, 12.11.2020 03:30
English, 12.11.2020 03:30
Mathematics, 12.11.2020 03:30
English, 12.11.2020 03:30
Biology, 12.11.2020 03:30
Mathematics, 12.11.2020 03:30
Mathematics, 12.11.2020 03:30
Biology, 12.11.2020 03:30
English, 12.11.2020 03:30
Mathematics, 12.11.2020 03:40