Q unknown = -Q H2O
Q H2O= (100g x 4.18 J/g C x (25C - 20C)
Q H2O = 2090J
-2090J = (50g x c x (25C-90C)
-2090J = -3250c
.64 = c
I am a high school student and have done this problem a few months ago for my test, hope this helps
Answer: A
Explanation:
A contour interval is a vertical distance or difference in elevation between contour lines. Index contours are bold or thicker lines that appear at every fifth contour line.
An exergonic reaction proceeds with net release of free energy.
An endergonic reaction absorbs free energy
Liquid silver is less dense than solid silver, so the solid silver would sink.
No because it changes its composition to ozone
