A sealed, rigid l. 0-liter cylinder contains He gas at STP. An identical sealed cylinder contains Ne gas at STP. These two cylinders contain the same number of (1) atoms (2) electrons (3) ions (4) protons

As you move from left to right across the periodic table, the atomic numbers increase decrease stay the same are random

Pproximately how many particles are in 3 moles? 1.8*1024 6.0*1023 2.4*1024 1.2*1024 1.8*1024 is correct

A mixture containing nitrogen and hydrogen weighs 3.49 g and occupies a volume of 7.45 L at 305 K and 1.03 atm. Calculate the mass percent of these two gases. Assume ideal-gas behavior. slader

What is the term used to explain how everything is headed toward a state of randomness? Question 6 options: Ionic bonding Biomolecules Entropy Random Acts

marty the astronaut has a mass of 75kg he travel to mars which is 38% earths gravity provide weight in pounds when 1 kg equals 2.2 pounds

The characteristic flame test colors of metal ions are due to atomic emission spectra. Duscuss the relationship between the absoption and emission of light and the factors responsible for flame test colors.

Should a bartender use ice and scoop directly from ice machine or use an ice holding device and scoop to make drinks and refill drinks from

What classification should this reaction have? 4Al + 3O2 → 2Al2O3

If you start with 100 grams of a radionuclide, how much will you have after two half-lives have passed?

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.