Suppose you mix 100.0 g of water at 23.0 oC with 75.0 g of water at 75.7 oC. What will be the final temperature of the mixed water, in oC? Type

Explanation:

Let final temperature be T.

Heat lost by hot water

mass x specific heat x fall in temperature

75 x s x ( 75.7 - T )

Heat gained by cool water

= 100 x s x ( T - 23 )

heat lost= heat gained

75 x s x ( 75.7 - T )   = 100 x s x ( T - 23 )

5677.5 - 75 T= 100 T- 2300

175 T= 7977.5

T = 45.6⁰C .

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).