What is the mass of oxygen gas produced if 100.0 g of water…

What is the mass of oxygen gas produced if 100.0 g of water vapor decomposes?  Report answer to the proper number of significant figures. Show work using Dimensional Analysis (as best you can) for FULL CREDIT. Link to Periodic Table ACCESSIBLE Periodic Table Zoomable Periodic Table 2 H2O (g)  —>  2 H2 (g)  +  O2 (g)   You may want to use a table to show your Dimensional Analysis work.