What was the initial temperature of a gas contained in a 2.0-l bottle at a pressure of 1.00 atm if it was placed under vacuum and its pressure was reduced to 0.82 atm at a temperature of 10.0 c? assume volume remains the same.

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

Can someone me with 6 to 10 plz this is for masteries test.

What is the wavelength of a 3*10^12 hz infrared wave a 3*10^20m b 1* 10^4m c 3*10^-3m d 1*10^-4 m