Answer the 7 question
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4.2NaoH+ H2SO4 --->Na2SO4+2H2O
7.Stars appear to be higher as the light is refracted towards the normal by various layers of the atmosphereope it helps
Shreyamishra10:
Sry but I want answer of 7 the question
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Hope this helps you,
Thank you☺
Select as Brainliest..
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