MgO+2HBr->MgBr2+H2O
2N2+5O2->2N2O5
C2H4+3O2->2CO2+2H2O
Fe+2HCl->FeCl2+H2
Answer:
The answer is A, It shows an exothermic overall reaction.
Explanation:
25:18 meaning for every 25 moles of oxygen there's 18 moles of water
Answer:
100 yard = 9144 centimeters
9144 / 3.2 = 2,8575 round off
= 2,858 paperclips
Explanation: