Dr. Nation has 0.75 mol of an unknown gas with pressure of 500 mmHg and a volume of 290 mL. What is the temperature of this unknown gas?
O 3.1k
9.3K
78 K
30.2 K

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

The grooves or folds of the brain are called

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?