Write the balanced chemical equation for the following and identify the type of reaction in each case. (a) Potassium bromide(aq) + Barium iodide(aq) $→$ Potassium iodide(aq) + Barium bromide(s) (b) Zinc carbonate(s) $→$ Zinc oxide(s) + Carbon dioxide(g) (c) Hydrogen(g) + Chlorine(g) $→$ Hydrogen chloride(g) (d) Magnesium(s) + Hydrochloric acid(aq) $→$ Magnesium chloride(aq) + Hydrogen(g)

Question

Write the balanced chemical equation for the following and identify the type of reaction in each case.  (a) Potassium bromide(aq) + Barium iodide(aq)  $→$  Potassium iodide(aq) + Barium bromide(s)  (b) Zinc carbonate(s)  $→$  Zinc oxide(s) + Carbon dioxide(g)  (c) Hydrogen(g) + Chlorine(g)  $→$  Hydrogen chloride(g)  (d) Magnesium(s) + Hydrochloric acid(aq)  $→$  Magnesium chloride(aq) + Hydrogen(g)

cdquestions Admin · Accepted Answer

(a) 2KBr (aq) + BaI 2(aq)   $→$  2KI (aq) + BaBr 2(s) ; Double displacement reaction  (b) ZnCO 3(s)   $→$  ZnO (s) + CO 2(g) ; Decomposition reaction (c) H2 (g) + Cl 2(g)   $→$  2HCl (g) ; Combination reaction (d) Mg (s) + 2HCl (aq)  → MgCl 2(aq) + H 2(g) ; Displacement reaction

Case	Mirror	Focal Length (cm)	Object Distance (cm)
1	A	20	45
2	B	15	30
3	C	30	20

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