This element is the only element that is shiny, mallable, and a good conductor of heat and electricity. it has a higher number atomic number than cesium but lower than radon

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

What royal scientist used the 29th day of frozen vapor to encounter elements for mastering new culinary creations?

Which of these is a physical property