Which of the following is a balanced chemical equation?
a) CH4(g) + 2O2(g)-----à CO2(g) + H2O(l)
b) CH4(g) + O2(g)-----à CO2(g) + 2H2O(l)
c) CH4(g) + O2(g)-----à CO2(g) + H2O(l)
d) CH4(g) + 2O2(g)-----à CO2(g) + 2H2O(l)
Calculation:
Reactant : Product
C=1 C=1
H=4 H=4
O=4 O=4
Hence it is a balanced equation
Which of the following shows a balanced chemical equation between sodium and water?
a) 2Na(s) + H2O(l) -----àNaOH(aq) + H2(g)
b) Na(s) + 2H2O(l) -----àNaOH(aq) + H2(g)
c) 2Na(s) + 2H2O(l) -----à 2NaOH(aq) + H2(g)
d) 3Na(s) + 3H2O(l) -----à 3NaOH(aq) + H2(g)
calculation:
Reactant : Product
Na=2 Na=2
H=4 H=4
O=2 O=2
Hence it is a balanced equation
Which of the following equation is balanced?
a) H2(g) + O2(g) -----à H2O(g)
b) H2(g) + O2(g) -----à 2H2O(g)
c) 2H2(g) + 2O2(g) -----à H2O(g)
d) 2H2(g) + O2(g) -----à 2H2O(g)
calculation:
Reactant : Product
H=4 H=4
O=2 O=2
Hence it is a balanced equation
Which of the following equation is balanced equation?
a) Ca(s) + O2(g)------àCaO(s)
b) 2Ca(s) + O2(g)------à 2CaO(s)
c) 2Ca(s) + 2O2(g)------à 2CaO(s)
d) 2Ca(s) + O2(g)------àCaO(s)
calculation:
Reactant : Product
Ca=2 Ca=2
O=2 O=2
Hence it is a balanced equation
Which of the following equation shows the balanced chemical equation?
a) H2O2(l) -----à 2H2O(l) + O2(g)
b) 2H2O2(l) -----à 2H2O(l) + O2(g)
c) 3H2O2(l) -----à 3H2O(l) + O2(g)
d) 2H2O2(l) -----à 2H2O(l) + 2O2(g)
calculation:
Reactant : Product
H=4 H=4
O=4 O=4
Hence it is a balanced equation
Which of the following equation shows the balanced chemical equation between silver and oxygen?
a) 4Ag(s) + O2(g) ------à 2Ag2O(s)
b) 2Ag(s) + 2O2(g) ------à Ag2O(s)
c) 2Ag(s) + O2(g) ------à 2Ag2O(s)
d) Ag(s) + O2(g) ------à Ag2O(s)
calculation:
Reactant : Product
Ag=4 Ag=4
O=2 O=2
Hence it is a balanced equation
by at 2025-03-21 12:45:37