If an element only partially conducts electricity, it would be part of the _______ category. *
1 answer:
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Answer:
Explanation:
Hello,
In this case, since a change in science is widely known to be considered as a subtraction between the the final and initial values of two measured variables and is represented via Δ, here the final density is 5.43 g/mL and the initial one was 3.21 g/mL, therefore, the change in density is:
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Answer:
(a) Slightly greater than 20.0 °C
(b)
Explanation:
Hello,
In this case, since we are talking about the equilibrium temperature that will be reached when the copper, chromium and water samples get in contact, the following equation is useful to describe such situation:
Thus, in terms of masses, heat capacities and temperatures we consider the final temperature as the unknown:
In such a way, by knowing that the heat capacities of copper and chromium are 0.386 and 0.45 J/(g°C) respectively, by solving for the equilibrium temperature one has:
Hence, the resulting temperature of water turns out slightly greater than 20.0 °C.
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