How is energy sent from Earth to space? conduction and convection
radiation and conduction
reflection and conduction
radiation and reflection

Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer

Calcium chloride +gold(1) oxide—>

Express the following number in scientific notation. 0.026890 =