-6+1= -5
-5 is the true answer
Air & noise pollution
Quarry waste
Damage to biodiversity
Given :
A compound has a molar mass of 129 g/mol .
Empirical formula of compound is C₂H₅N .
To Find :
The molecular formula of the compound.
Solution :
Empirical mass of compound :

Now, n-factor is :

Multiplying each atom in the formula by 3 , we get :
Molecular Formula, C₆H₁₅N₃
Answer:
Well they help us understand the properties of matter of course!
Answer:
They are pollinators of alfalfa.
Explanation:
Without them crops wouldn't be here.