examine the geometry of the molecule in the 3d window. use the atom positions to deduce the nature of the bonds present

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

A2.5% (by mass) solution concentration signifies that there is a 2.5 % (by mass) solution concentration signifies that there is blank of solute in every 100 g of solution. of solute in every 100 g of solution

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.