An atom becomes when ___it gains electrons.

Positive
Negative
Neutral
Invisible
HURRY QUICK 7 PTS!!

if it has equal positive and negative then neutral. but if there are more electrons than protons then it becomes negative.

Explanation:

hope this helps!

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 :