Based on the nature of the reactants in each of the equations below, which reaction at 25°C will occur at the fastest rate? A
C(s) + O2(g) + CO2 (g)
B
NaOH(aq) + HCl(aq) + NaCl(aq) + H2O(l)
C.
CH3OH( 2) + CH3COOH(e) → CH3COOCH3 (aq) + H2O(l)
D.
CaCO3(s) - CaO(s) + CO2 (g)

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.