False
Explanation:
This is false because there is no solution and salt bridge to facilitate the movement of electrons from the two metals.
This connection is not an electrochemical cell because other components are absent. To fully form the electochemical cell which allows a potential difference to be set up;
- Presence of electrodes
- Presence of a solution
- Wire
- Salt bridge
Just wires and the electrodes are given in this set up and it will not work.
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We know, change in temperature is given by :
Putting all given values, we get :
Hence, this is the required solution.
Scientists ask questions, which is the basis for their investigations.
Answer:
Sample Respond: The nucleus maintains the integrity of genes and controls the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell.
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Explanation:
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Molar mass
Ca₃(PO₄)₂ = 310 g/mol
1 mole -------------------> 310 g
2.3x10⁻⁴ mole ---------> ?
m = 2.3x10⁻⁴ * 310 / 1
m = 0.0713 g
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