An unknown compound contains carbon, hydrogen, and oxygen. Calculate the empirical formula given that the following quantities were present: 74.03 g C, 8.70 g H and 17.27 g N.

The elemental symbol Fe represents the element_____. 

How many O atoms are in formula Al2(SO4)3?

 What is the empirical formula for Hg2O2? 

How many electrons are in Br- anion?

What is the charge that group 7A elements likely to form?

Group 1A elements are called:

How many moles of oxygen present in 1.7 mol CaCO3?

 What is the correct formula for sodium perchlorate?

The nurse is working on an over flow unit and caring for multiple clients with various disorders. The nurse has completed the initial assessment on all the clients and prioritizes which patient as the highest risk for venous thromboembolism (VTE)?