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Choose the proper shape for the formula. BrF3

Give the number of valence electrons in S-2  

What does first ionization energy describe?

Find the exact value of the expression, if possible. Do not use a calculator.tan-1

Place the following types of electromagnetic radiation in order of increasing wavelength.  microwaves           radio waves          x-rays 

Identify the correct quantum number values for an electron in the 3p sublevel.

If you inflate a balloon from a volume of 0.100 L to 1.85 L against an external pressure of 1.00 atm, how much work is done (in joules)? (Show work for full credit 5pts) 101.3 J/atm L

Calculate the wavelength of light in nm associated with the transition from n = 1 to n = 3 in the hydrogen atom. ΔE=RH (1/n2f – 1/n2i)       RH= 2.18×10-18 J/atom;     c = 3 x 108 m/s      h=6.626 x 10-34  J s; (Show work for full credit)

Which of the following sets of quantum numbers contains an error?

Which of the following substances (with specific heat capacity provided) would show the greatest temperature change upon absorbing 100.0 J of heat?