हिंदी

Balance the following equation and add state symbols: Zn + HCl -> ZnCl2 + H2

Advertisements
Advertisements

प्रश्न

Balance the following equation and add state symbols:

\[\ce{Zn + HCl -> ZnCl2 + H2}\]

रासायनिक समीकरण/संरचनाएँ
Advertisements

उत्तर

\[\ce{Zn_{(s)} + 2HCl_{(aq)} -> ZnCl2_{(aq)} + H2_{(g)}}\]

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Chemical Reactions and Equations - Exercise 1 [पृष्ठ २९]

APPEARS IN

लखमीर सिंग Chemistry Part 2 [English] Class 10
अध्याय 1 Chemical Reactions and Equations
Exercise 1 | Q 22. (b) | पृष्ठ २९

वीडियो ट्यूटोरियलVIEW ALL [4]

संबंधित प्रश्न

Translate the following statement into a chemical equation and then balance it.

Hydrogen sulphide gas burns in the air to give water and sulphur dioxide.


How will you indicate the following effect in a chemical equation?

A solution made in water.


Translate the following statement into a chemical equation and then balance the equation:

Carbon disulphide burns in air to give carbon dioxide and sulphur dioxide.


Explain, with an example, how the physical states of the reactants and products can be shown in a chemical equation.


With the help of an appropriate example, justify that some of the chemical reactions are determined by the evolution of a gas.

Give a chemical equation for the reaction involved in the above case.


Which of the following is not an endothermic reaction?


Express the following facts in the form of a balanced chemical equation:

“When a strip of copper metal is placed in a solution of silver nitrate, metallic silver is precipitated and a solution containing copper nitrate is formed”.


A white precipitate will be formed if we add common salt solution to ______.


Why do we need to balance chemical equations?


Write word equation for the following skeletal equation:

\[\ce{AgBr -> Ag + Br2}\]


Balance the following equation :

 Fe + O2 → Fe3 O4


In the experiment for determining the percentage of water absorbed by raisins, we do the final weighing of the raisins after keeping them dipped in water for about one hour. For the accuracy of the result, the extra water from the surface of the soaked raisins is removed by


Balance the equation stepwise.

 Ag(s) + HCl(aq) → AgCl ↓+ H2 ↑ 


What is the limitation of the reaction given in question 2?


What information does the following chemical equation convey?

Zn + H2SO4 → ZnSO4+ H2


Complete the following blank in the equation as indicated.

\[\ce{CaH2_{(s)} + 2H2O_{( aq)}-> Ca(OH)2_{(s)} + 2H2_{(g)}}\]

Moles: 1 mole + ______ `→` ______ + ______


Match column A with column B. 

Column A Column B
(a) Blue salt changes to white and then black (i) Ammonium dichromate
(b) Orange coloured compound changes to green. (ii) Iodine
(c) Red compound changes to brown and then yellow. (iii) Zinc Nitrate
(d) White to yellow when hot and white when cold. (iv) Copper sulphate
(e) Violet solid changes to violet vapours. (v) Red Lead

Balance the following simple equation:

Mg   +   N2  →  Mg3N2 


To balance the following chemical equation the value of x and y should respectively be:

\[\ce{2NaOH + xAl_2O_3->yNaAlO_2 + H_2O}\]


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×