Hen 20 g of Al (s) at 98 degrees Celsius is placed in 50 g of H2O , the final temperature is 26.5 degrees Celcius. What was the initial temperature of H2O ? Given: CspAl(s) = 0.903 J/g C and CspH20(l) = 4.18 J/g C

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

im pretty sure its b

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.