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Answer:
The average kinetic energy of their particles is the same.
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<span>Valence electrons are important because these are the only electrons involved with an atom's chemical reactivity.</span>
Answer:
m = 3.3 g
Explanation:
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In this case, since the specific heat of water is defined as 4.184 J(g*°C), given the temperature change and the absorbed energy, we can compute the mass of water as shown below:
Thus, we plug in the given data to obtain:
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Answer:
A
Explanation:
In a galvanic cell, energy is produced by spontaneous chemical processes.
The cathode and anode of this cell will depend on the relative position of the two metals in the electrochemical series.
Aluminium is higher in the electrochemical series so aluminium will be the anode. Silver is lower in the electrochemical series so silver will be the cathode.
Recall that oxidation (electron loss) occurs at the anode while reduction (electron gain) occurs at the cathode.