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Chemistry, 07.05.2021 08:20 vavzincakjoey

Help asap on these heat questions How much heat is required to change the temperature of 20 g of mercury from 50 to 100°C?

What is the specific heat of 120 g of an unknown substance with a temperature change from 15 to 35°C when 690 J heat are applied?

How much mass of lead is required to change the temperature from 200 to 398°C when 2100 J of heat are applied?

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