2Na+ 2H2O 2NaOH + H2 If 73 g of Na are available, how many moles of NaOH are produced?
4.67 mol NaOH
3.18 mol NaOH
6.74 mol NaOH
8.31 mol NaOH

Which of the following is not a characteristic of a hydrogen bond? 1. it is responsible for the unusual physical properties of water. 2. it is weaker than a covalent bond. 3. it is stronger than other dipole-dipole interactions. 4. it can occur when hydrogen is covalently bound to very electronegative elements liks f, cl, br and i.