When the following calculation is performed, select the answer showing the proper number of significant figures AND correct units.

If you have 4.7 moles of NO2, what mass (in grams) will it have?

What is the name for NaHCO3?

Using the balanced equation below, answer the following question: BaCl2 + Na2SO4 

Convert the temperature of 765 K to oF. Write the numerical answer in the blank (NO UNITS please).

Select ALL the empirical formulas from the list:

If a graduated cylinder contains 58.7 mL of water and an irregular shaped piece of metal is carefully lowered into the water so that the final water level is 76.4 mL.  What is the volume of the piece of metal.  

Particles will separate out of a

Select ALL of the following diatomic elements:

What is the name for N2O? Note: Use method of naming for molecular compounds.