You calculate that your semester average in history is 97.5. when you get your report card, your average is 96. what was the percent error of your calculation?

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’s the scientific notation for the number 6,840,000,000

An observation that requires measurement is called quantitative observable or qualitative