Answer: Argon ( Ar )
Explanation: This is element is silicon because it has 18 protons.
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Answer:
D. Reduction takes place at the cathode, which is negatively charged.
Explanation:
In an electrolytic cell there are two electrodes; the cathode and the anode. The anode is the positive electrode while the cathode is the negative electrode. Oxidation occurs at the anode while reduction occurs at the cathode.
At the anode, species give up electrons and become positively charged ions while at the cathode species accept electrons and become reduced.
A) Hg, or Mercury, is a liquid at room temperature. Hope this helps!!
Answer:

Explanation:
Hello there!
In this case, since the thermodynamic definition of heat in terms of mass, specific heat and temperatures is given by:

We are to calculate the specific heat of the ethanol as shown below:

Thus, by plugging it the given data we can obtain:

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