Carbon's valence is
covalent
ionic
+4
-4

Answer : +4

Explanation : Carbon's valency is +4.

Valency is defined as the combining or giving away power for required electrons of any element, especially it is measured by the number of hydrogen atoms which can be displaced or combined with.

In carbon which has 6 electrons in its atom. In first shell has 2 electrons and in the second shell 4 electrons are accommodated. It can either donate or accept 4 electrons in its valence shell. Most commonly the valency is +4.

it is called acid bonding

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :