What is the value of n in ch3(ch2)nch3 if the make of the hydrocarbon is heptane?

n = 5

Explanation:

methane => 1 Carbon => CH₃

ethane => 2 Carbons => C₂H₆

propane => 3 Carbons => C₃H₈

butane => 4 Carbons  => C₄H₁₀

pentane => 5 Carbons => C₅H₁₂

hexane => 6 Carbons => C₆H₁₄

heptane => 7 Carbons => C₇H₁₆ => CH₃(CH₂)₅CH₃

Octante => 8 Carbons => C₈H₁₈

Nonane => 9 Carbons => C₉H₂₀

Decane => 10 Carbons => C₁₀H₂₂

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying