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प्रश्न
Write the chemical equation for the following word equation and balance them.
Calcium oxide + Carbon dioxide → Calcium carbonate
उत्तर
CaO + CO2→ CaCO3
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संबंधित प्रश्न
Write the balanced chemical equation for the following reaction.
\[\ce{Zinc + Silver nitrate -> Zinc nitrate + Silver}\]
Fill in the following blank with suitable word:
Chemical equations are balanced to satisfy the law of ............
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.
Balance the following equation and add state symbols:
Zn + HCI → ZnCI2 + H2
One of the following is an exothermic reaction. This is:
(a) electrolysis of water
(b) conversion of limestone into quicklime
(c) process of respiration
(d) process of photosynthesis
What do the following symbol stand for?
2H2
A chemical reaction is generally accompanied by certain external indications or characteristics. These include – change of – (a) colour (b) state (c) smell (d) evolution of gas (e) formation of precipitate (f) evolution or absorption of heat. With reference to change of colour – state the change in colour seen when the following are heated – copper carbonate.
Give an example of a chemical equation in which two reactants form:
two product
Balance the following simple equation:
NaOH + Cl2 → NaCl + NaClO + H2O
What is a reactant in a chemical equation?
