Which of the following reactions are redox reactions? check all that apply. view available hint(s) check all that apply.
a.4li(s)+o2(g)→2li2o(s)
b. mg(s)+fe2+(aq)→mg2+(aq)+fe(s)
c. pb(no3)2(aq)+na2so4(aq)→ pbso4(s)+2nano3(aq)
d. hbr(aq)+koh(aq)→ h2o(l)+kbr(aq)

Which best describes why nh4+ can form an ionic bond with ci-?

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: