it's Lithium or Li
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He answer is 4.9 the graph to the right really means nothing.
Answer: NH3
Explanation: N2 + H2 yields NH3.
Dehyrdration should happen to join two monosaccharide units into a dissacharide. It is used to build up molecules by losing some water moleculse in the process. In a dehydration synthesis reaction between two un-ionized monomers. Hope this answers the question. Have a nice day.