What is the shape of a molecule that has 3 atoms bonded to a central atom and no lone pairs of electrons? A. Trigonal-planar
B. Linear
C. Trigonal-pyramidal
D. Tetrahedral

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers

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

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer