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प्रश्न
Give a balanced equation for –
A direct combination reaction involving two elements, one of which is a non-metal
उत्तर
Balanced chemical equation: A combination reaction between calcium and oxygen (non-metal) to form calcium oxide.
\[\ce{2Ca + O2->2CaO}\]
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संबंधित प्रश्न
What type of reaction is represented by the following equation?
CaO + H2O → Ca(OH)
What type of reaction is represented by the following equation?
2 Ca + O2 → 2CaO
What do you understand by a chemical bond ?
(a) What is double displacement reaction? Explain with an example.
(b) A small amount of quick lime is added to water in a beaker.
(i) Name and define the type of reaction that has taken place.
(ii) Write balanced chemical equation for the above reaction and the chemical name of the product formed.
(iii) List two main observations of this reaction.
Define: Chemical combination reaction
H2(g) + Cl29(g) → 2HCl(g) is a ______
Which of the following are exothermic processes?
(i) Reaction of water with quick lime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)
Which of the following is not a physical change?
Balance the following chemical equation and identify the type of chemical reaction.
`"Na"("s") + "S"("s") overset("(Fuse)")(->) "Na"_2"S"("s")`
A clear solution of slaked lime is made by dissolving Ca(OH)2 in an excess of water. This solution is left exposed to air. The solution slowly goes milky as a faint white precipitate forms. Explain why a faint white precipitate forms, support your response with the help of a chemical equation.
