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CBSE Class 10 Answered

why is setting of cement endothermic ?
 
Asked by devluxmi24 | 22 Jul, 2016, 10:16: PM
answered-by-expert Expert Answer
During setting of cement hydration takes place and hydration is exothermic.
Answered by Vaibhav Chavan | 23 Jul, 2016, 09:05: PM

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CBSE 10 - Chemistry
what is pop formula
Asked by 09.10bjanvhijadhav | 02 Mar, 2024, 08:22: AM
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CBSE 10 - Chemistry
BaCl2 +NaSO4 gives NaCl+BaSO4 is a neutalisation reaction?
Asked by prassanna.j | 01 Mar, 2024, 11:59: AM
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CBSE 10 - Chemistry
On heating blue coloured powder of Copper (I) Nitrate in a boiling tube, Copper Oxide (black), Oxygen gas and a brown gas X is formed (a) Write a balanced chemical equation of the reaction. (b) Identify the brown gas X evolved. (c) Identify the type of reaction. (d) What could be the pH range of the aqueous solution of the gas X ?
Asked by susrisangita792 | 07 Jun, 2023, 11:54: AM
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CBSE 10 - Chemistry
when metals react with nitric acid then this gas is produced
Asked by nehashekh291 | 02 Jan, 2023, 07:26: PM
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CBSE 10 - Chemistry
what is electrolytic refining
Asked by satulurivictor | 17 Dec, 2022, 08:51: PM
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CBSE 10 - Chemistry
Mention the type of reaction that take place on heating lead nitrate crystal
Asked by Shadm4242 | 20 Aug, 2022, 12:35: PM
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CBSE 10 - Chemistry
Name the compound used for testing CO2gas.  
Asked by shyjukadakkavur | 12 Jun, 2022, 08:38: PM
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CBSE 10 - Chemistry
2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction.
Asked by pachchigarkeyur | 08 Mar, 2022, 12:05: PM
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CBSE 10 - Chemistry
Colour of ferric oxide
Asked by krrishsahu371 | 01 Dec, 2021, 09:22: AM
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CBSE 10 - Chemistry
What is combination reaction?
Asked by alintareji | 22 Aug, 2021, 08:11: PM
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