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For the reaction: 2H2O (l) + 137 kcal → 2H2 (g) + O2 (g) How many kcal are needed to form 2.00 grams of H2 (g)?    

For the reaction below, which substance is oxidized?  2 Zn + O2 –> 2 ZnO

The shape of the nitrogen trichloride molecule is

Sulfur-35 has a half-life of 84 days. How many days have elapsed after 4 half-lifes?  

Which type of radiation is most damaging if inhaled or ingested?                                                     

The symbol  4 2He is a symbol used for:                                                                                 

Which one of the following compounds contains an ion with a 2+ charge?  

The type of radioactive decay that occurs in the nuclear reaction: 23592U ——–> 23593Np   +  0-1e   is:                                                                                                                             

On the left are several activities for a city.  Match the activity to the fund on the right that it would be reported in.  A fund may be used more than once.

The focus of commercial organizations is profitability.  The focus of governmental entities is: