Calculate the number of joules of heat energy required to raise the temperature of 125 gram of silver from 100.0 degree celsius to 250.0 degree celsius.​

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Which proportionality applies to avogadro’s law?

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium