Answer:
Alkyne
Explanation:
The homologous series for this compound is the Alkyne because of the presence of the triple bond present between the third and fourth carbon atoms as seen in the picture attached.
Answer:

Explanation:
The density formula is:

Let's rearrange the formula for
. the volume. Multiply both sides by
, then divide by
.




The volume can be found by dividing the mass by the density. The mass of the object is 30.07 grams and the density is 1.48 grams per milliliter.


Divide. Note, when dividing, the grams, or
will cancel out.


The volume of the object is 20.317567567568 milliliters.
No. of moles = mass / molar mass
= 100/35.5
Answer: Nitrogen
Explanation: Nitrogen has an atomic number of 7 and an atomic mass of about 14 u