The formula for Ethyne is C2H2. Between the two Carbons is a triple bond. A single bond involves 2 electrons, so for the triple bond it is 3*2 = 6 electrons.
(1) 6.
Answer:

Explanation:
Hello,
In this case, the first step is to compute the initial moles of C₅H₆O₃ as shown below:

After that, by knowing that the final pressure is 1.63 atm, one computes the total moles at the equilibrium as follows:

Then, by knowing the moles at the equilibrium considering the change "
", which yields to:

The total moles at the equilibrium turn out:

By solving for "
", we've got:

Finally, the equilibrium constant is:

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The net osmosis will occur in the direction of the NaCl solution. This is because the solute concentration on that side is greater than that of the glucose solution. Osmosis is the process by which liquids move through semi permeable membrane from the region of lower concentration to the region of higher concentration.
Thus the water is going to move from the glucose solution into the NaCl solution.<span />
I believe the answer is an ion.
Answer:
C.
Explanation:
Phase change is physical.