14. EXPLAIN - Why does a metal like copper conduct electricity but something like plastic does not help me pls quickly

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Citric acid has a ph between 1 and 3.  it is considered to be aa. weak acidb. weak basec. strong based. strong acid