The complete combustion of ethanol, C2H5OH (FW = 46.0 g/mol), proceeds as follows:

C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(l) ΔH = -555 kJ

What is the enthalpy change for combustion of 4.0 moles of C2H5OH?
A) -2220 kJ
B) -139 kJ
C) 715 kJ
D) -82500 kJ

You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. the only problem is that you do not know what element will form. by your previous calculations you know that you will have 6.3 moles of product. when it is complete, you weigh it and determine you have 604.4 grams. what element have you produced?

What element breaks down into yttrium-90?

In saturated organic compounds, all the bonds between carbon atoms are called?