Answer:
Specific heat of solid A is greater than specific heat of solid B.
Explanation:
In the calorimeter, as the temperature is increasing, the vibrational kinetic energy will increase and this means that additional amount of energy will be needed to increase the temperature by the same value. Therefore, we can conclude that specific heat increases as temperature increases.
Now, we are told that the final temperature of solid A's calorimeter is higher than that of B.
This means from our definition earlier, Solid A will have a higher specific heat that solid B.
Answer:
natural selection does not cause a species to change
Explanation:
I believe that's what it is
Answer:
The concentration of the acid is 117.92 ± 0.03 mM.
Explanation:
In this problem, the concentration of NaOH and the volume used is given. The volume pipetted from the acid is also given. The concentration of the acid is given by:
CNaOH * VNaOH = Cacid * Vacid
158.32 * (18.76-0.14) = C acid * 25
C acid = 117.92 mM
The propagation of error for this problem, which is a multiplication is the concentration of the acid multiplied by the error divided by its respective value as shown in the equation below
error = 117.92 * 
The answer is 0.03 mM of uncertainty.
C. The expectations of the participants
Explanation:
The expectations of participants results in the placebo and nacebo effects. Usually, subjects in an experiment expect a certain type of outcome in their research process and this leads to the the placebo effects.
- Placebos are inert drugs with no therapeutic values.
- Nacebo effects arise from the negative expectations of subject which causes a sort of perceived harm.
- Participant expects a certain type of result from drug usage and their reactions can be skewed by this expectation.
Learn more:
something on experiments brainly.com/question/8203464
placebo brainly.com/question/12988866
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