At standard pressure, 15.0 grams of a compound at it boiling point is completely vaporized by 4 900 calories of heat. What is the heat of
vaporization of this compound?
1. 330 cal/g
2. 74 000 cal/g
3. 80. cal/g
4. 3.1 cal/g

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

the objects have the same charge is correct.

nathan lee