Equations for Chemical Reactions

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Equations for Chemical Reactions: Overview

This topic covers concepts, such as, Chemical Equations, Balanced Chemical Equations, Reactants in Chemical Equations & Products in Chemical Equations etc.

Important Questions on Equations for Chemical Reactions

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Great Lakes chemical company produces bromine, Br2 from bromide salts such as NaBr, in Arkansas brine by treating the brine with chlorine gas. Write a balanced equation for the reaction of NaBr with Cl2.

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List the number of atoms of different elements when zinc reacts with sulphuric acid.

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Write a balanced chemical equation of iron with water.

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Write a balanced chemical equation of zinc with sulphuric acid.

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What is the easiest way to balance a chemical equation?

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A chemical equation must be always balanced because it follows the law of conservation of mass.

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In balanced chemical equation

aKMnO4+bH2SO4cK2SO4+dMnSO4+eH2O+fO

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In a balanced chemical equation

a Cu+b HNO3   c CU(NO3)2+d H2O +e NO

Which the set of coefficients that balance the equation.

Which of the following alternative is correct?

 

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How many litres of CO2 at STP will be formed when 100 ml of 0.1M H2SO4 reacts with excess of Na2CO3?

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If 0.50 moles of BaCl2 is mixed with 0.20 moles of Na3PO4 the maximum number of moles of Ba3(PO4)2 formed will be 

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In order to balance a chemical equation, it is necessary to satisfy the law of

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Write values of a, b, and c so that following chemical equation is balanced 

aH2+bO2cH2O

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A chemical equation is said to be balanced if number of 

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Which of the following is a balanced chemical equation?

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What is the value of 'x' in the given equation?

Ag2CO3+xHCl+CO2+H2O

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An equation containing an equal number of atoms of each element on both sides of the arrow is called

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Column I Column II 
1. CaCO3CO2+CaO (i) Gives brown fumes on heating
2. PbNO32 (ii) Slaked lime
3. CaOH2(s) (iii) Endothermic reaction
4. C+O2CO2 (iv) Exothermic reaction

Codes:

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In the chemical equation representing the reaction between barium chloride and aluminium sulphate solutions, the total sum of all stoichiometric coefficients is equal to 

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In which of the following equations, the abbreviations represent the correct state of the reactants and products involved at reaction temperature?

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The chemical reaction, C2H5OH+3O22CO2+3H2O+Heat is called