If 4.5 kJ of energy is removed from 100 g of copper at 100ºC, what is the final temperature in degrees Celsius? answer choices: -15, -10, 100, 215

please choose a correct answer or i will flag (im desperate to get this done)

If soap hits the floor, is the soap dirty or the floor

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 is the most important factor in determining climates.