Balance the following reactions. (You may just give the coefficients in front of the formulas instead writing the entire equation.)
Al(s) + NINO3(aq) —-> Al(NO3)3 + Ni(s)

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

All of the following are part of the biosphere except

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.