Question

Complete the following reactions. a)2NaNo3 _____ b. Fe2O43 + xH20 &______c. C6H12O6+602 ________d. CaCO3+2HNo3 _________​

Answer 1

Answer:

The completed reactions are,

$(a)$  $2\ NaNO_3\ --->\ 2\ NaNO_2\ +\ O_2$

$(b)$  $Fe_2(SO_4)_3\ +\ 6\ H_2O\ --->\ 2\ Fe(OH)_3\ +\ 3\ H_2SO_4$

$(c)$  $C_6H_1_2O_6\ +\ 6\ O_2\ --->\ 6\ CO_2\ +\ 6\ H_2O$

$(d)$  $CaCO_3\ +\ 2\ HNO_3\ --->\ CO_2\ +\ H_2O\ +\ Ca(NO_3)_2$

Explanation:

Let's see the reactions one by one·

$(a)$  It is a decomposition reaction where the Sodium nitrate decomposes to give Sodium nitrite and Oxygen gas·

The balanced reaction follows,

 $2\ NaNO_3\ --->\ 2\ NaNO_2\ +\ O_2$

$(b)$  Here, the Ferric sulphate is slightly soluble in water to form Ferric hydroxide and Sulphuric acid·

The balanced reaction follows,

 $Fe_2(SO_4)_3\ +\ 6\ H_2O\ --->\ 2\ Fe(OH)_3\ +\ 3\ H_2SO_4$

$(c)$  It is a combustion reaction, where Glucose reacted with Oxygen produces Carbon dioxide and Water·

The balanced reaction follows,

 $C_6H_1_2O_6\ +\ 6\ O_2\ --->\ 6\ CO_2\ +\ 6\ H_2O$

$(d)$  It is an acid-base neutralization reaction, where the $CaCO_3$ act as a base and $HNO_3$ acts as an acid· Here, the Calcium carbonate reacts with Nitric acid to produce Carbon dioxide, Water, and Calcium nitrate·

The balanced reaction follows,

 $CaCO_3\ +\ 2\ HNO_3\ --->\ CO_2\ +\ H_2O\ +\ Ca(NO_3)_2$