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प्रश्न
In the chemical equation the _______ are written on the left-hand side.
पर्याय
products
reactants
element
catalyst
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उत्तर
In the chemical equation the reactants are written on the left-hand side.
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संबंधित प्रश्न
Balance the following chemical equation.
\[\ce{BaCl2 + H2SO4 -> BaSO4 + HCl}\]
Balance the given equation:
H2O2 
H2O + O2
When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are elements.
When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are reactants.
When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are non-metals.
Aluminium hydroxide reacts with sulphuric acid to form aluminium sulphate and water. Write a balanced equation for this reaction.
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Give chemical equation for the reaction involved in the above case.
State the various characteristics of chemical reactions.
State one characteristic of the chemical reaction which takes place when dilute hydrochloric acid is added to sodium carbonate.
Give one example of an endothermic reaction.
Is Decomposition of calcium carbonate an endothermic reaction or an exothermic reaction?
The chemical equations are balanced to satisfy one of the following laws in chemical reactions. This law is know as:
(a) law of conservation of momentum
(b) law of conservation of mass
(c) law of conservation of motion
(d) law of conservation of magnetism
What is a chemical equation?
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\[\ce{Ca + O2 → CaO}\]
Write your observation for the following chemical reaction and name the product formed:
When sugar is heated.
Write symbolic representation for the following word equation and balance them :
Calcium oxide + Water → Calcium hydroxide
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`"NaNO"_3 → "NaNO"_2 + "O"_2` Name of product (s)
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N2 + H2 → NH3
While performing the experiment with raisins to determine the percentage of water absorbed by them, a student made following measurements:
Mass of water in the beaker = 40 g
Mass of raisins before soaking = 5 g
Mass of raisins after soaking for 2 hours = 8 g
Mass of water left in the beaker after the experiment = 35 g
The percentage of water absorbed by raisins is:
The step(s) necessary for determining the percentage of water absorbed by raisins is/are:
Write the balanced chemical equation of the following reaction. iron + sulphuric acid → ferrous sulphate + hydrogen.
Write the balanced chemical equation of the following reaction.
sodium chloride + manganese dioxide + sulphuric acid → sodium hydrogen sulphate + manganese sulphate + water + chlorine.
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
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\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of chlorine gas formed.
Name the substances that are getting oxidised and reduced in the process.
Write word equation for the following molecular equation:
AgN03 + HCI → HNO3 + AgCl ↓
Word equation:
State whether AgCl is soluble or insoluble in HN03.
Write word equation for the following molecular equation:
\[\ce{CuSO4 + 2NaOH -> Na2SO4 + Cu(OH)2↓}\]
Word equation:
State the colour of the products.
Representation of the results of a chemical change – is a chemical equation.
For the equation: FeCl3 + 3NH4OH 3NH4Cl + Fe(OH)3 ↓
Answer the following:
Write the word equation for the above molecular equation.
Name the following:
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Balance the following simple equation:
NO + O2 → NO2
Balance the following simple equation:
H2 + Cl2 → HCl
Balance the following simple equation:
KHCO3 → K2CO3 + H2O + CO2
Balance the following simple equation:
Ca + H2O → Ca(OH)2 + H2
Balance the following simple equation:
Fe2O3 + CO → Fe + CO2
Write an Explanation.
Balanced equations
Match the columns.
| Reactants | Products | Types of chemical reaction | ||
| 1. | MgH2 | → | Mg + H2 | Endothermic |
| 2. | 2H2S + SO2 | → | 3S + 2H2O | Oxidation |
| 3. | CaO + H2O | → | Ca(OH)2 + heat | Exothermic |
| Redox | ||||
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\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
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Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Write the number of atoms of various elements in the reactants and products.
What is called thermolysis reactions?
