Chemistry, 24.04.2021 22:30 huneymarie
A 25.0 L tank contains hydrogen (H2) gas at a temperature of 149 K and a pressure of 1.51 atm. How many moles of hydrogen gas is in the tank?
Answers: 3
Chemistry, 22.06.2019 04:30
Using the periodic table, complete the table to describe each atom. type in your answers
Answers: 3
Chemistry, 22.06.2019 09:00
Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?
Answers: 1
Chemistry, 22.06.2019 13:30
Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?
Answers: 1
A 25.0 L tank contains hydrogen (H2) gas at a temperature of 149 K and a pressure of 1.51 atm. How m...
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