D. Matter and energy are the same.
C, because a homogeneous mixture is evenly mixed.
All those others would be heterogeneous (not evenly mixed).
There are several information's already given in the question. Based on those information's the answer can be easily determined.
M = <span>1.11 g CH4
C = </span>4.319 kJ g C⋅°
∆T = 35.65 - 24.85 degree centigrade
= 10.8 degree centigrade.
Then
∆H =−M ⋅ C ⋅∆T
= - 1.11 * 4.319 * 10.8
= - 51.776 kJ/<span>mol
I hope the procedure is clear enough for you to understand.</span>
Answer:
8
Explanation:
the number before the abbrviation for calcium (Ca) shows how many calcium there is.
