Write proper chemical equations and balance the following reactions a) Write a b
ID: 534869 • Letter: W
Question
Write proper chemical equations and balance the following reactions
a) Write a balanced chemical equation to represent the reaction of solid magnesium and gaseous oxygen to form solid magnesium oxide.
b)Write a balanced equation to represent the decomposition of solid ammonium nitrate into dinitrogen monoxide gas and liquid water.
c)Write a balanced equation to represent the reaction of the gases chlorine and ammonia (NH3) with an aqueous solution of sodium hydroxide to form water, an aqueous solution containing sodium chloride, and hydrazine, N2H4.
Explanation / Answer
a)
Magnesium + oxygen -------> magnesium oxide
Mg + O2 ---------> MgO
Mg + O2 --------> 2 MgO
2 Mg + O2 --------> 2 MgO
b)
Ammonium nitrate (Soild) ------> dinitrogen monoxide (gas) + Water (liquid)
(NH4)(NO3) --------> N2O + H2O
Balanced Equation is,
NH4NO3 (Soild) ---------> N2O (Gas) + 2H2O (Liquid)
c) Chlorine(gas)+Ammonia + Sodium hydroxide ------> Hydrazine + water + sodium chloride
Cl(g) + NH3 + NaOH ------> N2H4 + H2O + NaCl
Balancing Equation:
2 Cl(g) + 2 NH3 + 2 NaOH --------> N2H4 + 2H2O + 2NaCl
Magnesium + oxygen -------> magnesium oxide
Mg + O2 ---------> MgO
The oxygen atoms did not match so place a 2 in front of the MgO so that there are now two O on the right.Mg + O2 --------> 2 MgO
Now the oxygen atoms balance but the magnesium atoms no longer match. We have placed a 2 in front of the MgO which means we have 2 Mg atoms and 2 O atoms in total. If we place a 2 in front of the Mg on the left side then we get a balanced equation.2 Mg + O2 --------> 2 MgO
b)
Ammonium nitrate (Soild) ------> dinitrogen monoxide (gas) + Water (liquid)
(NH4)(NO3) --------> N2O + H2O
Balanced Equation is,
NH4NO3 (Soild) ---------> N2O (Gas) + 2H2O (Liquid)
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.