There was some repairing work going on in Varun's house. He saw a man pouring a bag of white powder in a drum containing water. He wanted to know that what the man was doing. So, he went near the drum and as soon as he was going to touch it.His brother Arun stopped him to touch the drum and told him that drum would be hot.
a) What would be that white powder ?
b) Write the reaction occurring in the drum.
c) What is the value shown by Arun ?
Answers
Answered by
1
white powder is cao
reaction is combination reaction
cao+h20=caoh2 + heat
arun knows about science showing his care for varun
Explanation:
Answered by
1
Answer:
a) The white powder is quicklime ( Formula: CaO)
b) The reaction is:
CaO + H O = CaOH (slakedlime is
2 2
formed) + heat
c) Arun stopped his brother because during the formation of slaked lime from quicklime and water, a large amount of heat is evolved (given out). Thus the drum is very hot furing the reaction.
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