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Balancing Equations

Class 10 Science के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ScienceIn the equation \(2\mathrm{H}_2 + \mathrm{O}_2 \rightarrow ?\) for the formation of water, how many water molecules will be present on the product side?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Hard ScienceA student writes the reaction of steam with red-hot iron as \(Fe + H_2O \to FeO + H_2\). Which option correctly corrects the error?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Medium ScienceWhat is done to balance a skeletal chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Medium ScienceWhy is it wrong to change subscripts while balancing an equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 5Medium ScienceWhat is done to convert a skeletal chemical equation into a balanced chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Medium ScienceWhy should subscripts in chemical formulae not be changed while balancing a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 4Medium ScienceAfter converting a word equation into a chemical equation, what is the next main task?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceWhen lead nitrate is heated, a brown gas is evolved. Which equation correctly represents this thermal decomposition?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceIn the balanced chemical equation for the formation of water from hydrogen and oxygen, how many water molecules are on the product side?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceIn the balanced chemical equation for burning magnesium, \(2\mathrm{Mg}+\mathrm{O}_2\rightarrow2\mathrm{MgO}\), how many magnesium atoms are on the reactant side?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceWhy must subscripts in chemical formulae not be changed while balancing a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceBefore balancing a chemical equation, what should be checked first?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 3Medium ScienceWhile balancing a chemical equation, what must not be changed?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Medium ScienceWhat is the most important care while converting a word equation into a chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Medium ScienceWhen the reaction of magnesium burning in oxygen is balanced, what coefficient is placed before magnesium oxide?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 2Medium ScienceAccording to the law of conservation of mass, how should the number of atoms of each element compare on the reactant and product sides of a balanced chemical equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Medium ScienceWhy are coefficients changed instead of chemical formulae while balancing equations?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Medium ScienceA white sample of silver chloride turns grey when kept in sunlight. Which equation correctly represents this change?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Medium ScienceWhich is the balanced chemical equation for the reaction in which hydrogen and oxygen form water?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 1Medium ScienceA student wrote \(Mg + O_2 \rightarrow MgO\) for the burning of magnesium in oxygen and claimed that it is balanced. Which is the correct balanced equation?Class 10Chemical Substances – Nature and BehaviourChemical Reactions and EquationsLevel 7Easy