What represent ???( the molecules get dissolved in water)..
Answer:

Explanation:
The differential equation is given as:


Taking integral of both sides; we have:







------- equation (1)
If C(0)=
; we have:
C(0)=
(where; A is an integration constant)




Substituting
into equation (1); we have;

Hello,
Here is your answer:
The proper answer to this question is option D "wood is burned". Its a chemical change because its changing forms wood to ash.
Your answer is D.
If you need anymore help feel free to ask me!
Hope this helps!
Explanation:
Metabollic rate is the amount of energy expended from an organism at a given point in time.
Equation of how glucose (food) is broken down via respiration:
C6H12O6(s) + 6O2(g) --> 6H2O(l) + 6CO2(g)
The amount of energy produced for the types of food is roughly proportional to the amount of oxygen use, so that the metabolic rate can be measured by measuring the rate of oxygen consumption.