In the third period of the periodic table sodium id following by magnesium, siicon, and phosphorus. which of these elements has the samllst atomic size

What four properties do all waves have in common

Light waves are as they pass through the

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