Electron arrangements in chem So I was give the following info (2p1) and it wants me to figure out what each means, I know 2 is the entertainment level and that p is the orbital but what is 1?

Compare and contrast refraction of light and sound will give brainliest

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ

How is an endothermic reaction identified