For the transmutation shown, which of the following is x?

Choice A: carbon-12, .

Explanation:

Let

Symbol of X: .

Consider the two conservation laws:

Sum of mass numbers:

Equate the two sides:

.

Thus the mass number of X is 12.

Try the steps above to find the atomic number of X. The number on the lower-left corner of indicates that the atomic number of this neutron is zero.

.

Thus the atomic number of X is 6.

What element is X? Refer to a modern periodic table. The element with atomic number 6 is carbon. The symbol for carbon is . The mass number of this isotope is 12. The answer will be .

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.