Question

PLEASE HELP ASAP !!! How to balance equations with brackets? Like Pb(NO3)2? How many of each element is there?

Answer 1

Answer: Pb2N4O12

Explanation: Pb = 1 X 2= 2 N = 2 x 2 = 4 O = 2+8+2 = 12

Answer 2

There is 1 lead (Pb) element, 2 nitrogen (N) elements and 6 oxygen (O) elements.

Step-by-step explanation:

Brackets in chemistry work the same like in maths. You multiply each element in the bracket depending on the power. In this case, we have a nitrogen atom and three oxygen atoms, in brackets, with a power of 2. You multiply the nitrogen atoms by 2, ending up with 2 nitrogen atoms, and you multiply the oxygen atoms by 2, ending up with 6.