Question

Ule mm Hg it the gas occupies 0.375 L at 100 °C. Chapter eleven (11) 1. Complete and balance the following equations: (a) C3H6(e)+ Oz (@)-> (spark) (b) Na2Cr2O7.2H2O(s) ->(heat) (c) HF(aq) + Ca(OH)2(aq) -> 2. Provide the chemical for each of the following hydrate compounds: (a)

Answer 1

Answer:

1) Writing Balanced equations for given chemical equations.

(a) the given is the combustion reaction and the products are CO2 and H2O and heat (spark)

From "n" C atoms there forms "n" CO₂ and from "m" H there forms m/2 H₂O's.

C₃H₆ (g) + 4.5 O₂ (g) $\rightarrow$ 3 CO₂ (g) + 3 H₂O (g)

(b)

Na₂Cr₂O₇. 2H₂O (s) $\rightarrow$ Na₂Cr₂O₇ (s) + 2H₂O (g).

Thermal treatment cause water of crystalisation evaporate.

(c) Its Neutralization Reaction,

2 HF (aq) + Ca(OH)₂ (aq) $\rightarrow$ CaF₂ (aq) + 2 H₂O.

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