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Which Equations Are Balanced

Question 137

Multiple Choice

Which equations are balanced?
a) Mg (s) + 2HCl (aq) → Which equations are balanced? a) Mg (s) + 2HCl (aq) → (aq) + (g) b) 3Al (s) + 3 (l) → (s) c) 2HgO (s) → 2 Hg (l) + (g) A) Only equation c is balanced. B) Equations a and c are balanced. C) Equations b and c are balanced. D) All of them are balanced. (aq) + Which equations are balanced? a) Mg (s) + 2HCl (aq) → (aq) + (g) b) 3Al (s) + 3 (l) → (s) c) 2HgO (s) → 2 Hg (l) + (g) A) Only equation c is balanced. B) Equations a and c are balanced. C) Equations b and c are balanced. D) All of them are balanced. (g)
b) 3Al (s) + 3 Which equations are balanced? a) Mg (s) + 2HCl (aq) → (aq) + (g) b) 3Al (s) + 3 (l) → (s) c) 2HgO (s) → 2 Hg (l) + (g) A) Only equation c is balanced. B) Equations a and c are balanced. C) Equations b and c are balanced. D) All of them are balanced. (l) → Which equations are balanced? a) Mg (s) + 2HCl (aq) → (aq) + (g) b) 3Al (s) + 3 (l) → (s) c) 2HgO (s) → 2 Hg (l) + (g) A) Only equation c is balanced. B) Equations a and c are balanced. C) Equations b and c are balanced. D) All of them are balanced. Which equations are balanced? a) Mg (s) + 2HCl (aq) → (aq) + (g) b) 3Al (s) + 3 (l) → (s) c) 2HgO (s) → 2 Hg (l) + (g) A) Only equation c is balanced. B) Equations a and c are balanced. C) Equations b and c are balanced. D) All of them are balanced. (s)
c) 2HgO (s) → 2 Hg (l) + Which equations are balanced? a) Mg (s) + 2HCl (aq) → (aq) + (g) b) 3Al (s) + 3 (l) → (s) c) 2HgO (s) → 2 Hg (l) + (g) A) Only equation c is balanced. B) Equations a and c are balanced. C) Equations b and c are balanced. D) All of them are balanced. (g)


A) Only equation "c" is balanced.
B) Equations "a" and "c" are balanced.
C) Equations "b" and "c" are balanced.
D) All of them are balanced.

Correct Answer:

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