In the following problem, which is the unknown quantity? A sample of helium gas has a volume of 546 mL at a pressure of 1.60 atm and a temperature of 137
°C. What is the pressure of the gas in atm when the volume is 657 mL and the temperature is 158°C?
A) P2
B) P1
C) V1
D) V2

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?