What is the total salt content of seawater as measured in parts per thousand (ppt)? . a. 3.5 ppt. b. 350 ppt. c. 3 ppt. d. 35 ppt.

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

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

The term gas is limited to those substances that exist in the gaseous state at