It's answer A!
Reactants on left (see on the arrow), products on right.
The weighted average of a penny is = 67.9g
<h3>Calculation of average weight</h3>
The sample of penny for pre 1982 is a total of = 18 pennies.
The mass of each penny for pre 1982 = 3.1
Therefore the total weight for penny for pre 1982
= 18×3.1
= 55.8
The sample of penny for post 1982 is a total of = 32 pennies.
The mass of each penny for post 1982 = 2.5
Therefore the total weight for penny for post 1982
=32×2.5
= 80
The weighted average
= 55.8+80/2
= 135.8/2
= 67.9g
learn more about mass here:
brainly.com/question/14156113
#SPJ1
These are called ocean or underwater trenches <span />
Formal charge on an element in a molecule is calculated by using following formula,
Formal Charge = [# of Valence Electrons] - [Electrons in Lone Pairs +
1/2 the # of Bonding Electrons]
Example: Let's calculate the formal charge present on Oxygen atom in
Structure 1. The oxygen atom has,
6 Valence shell electrons
2 Bond Pair Electrons
6 Lone pair Electrons
So,
Formal Charge = [6] - [6+2/2]
Formal Charge = 6 - 7
Formal Charge = -1
You can calculate formal charges on all atoms in all three structure. I have drawn the structures with formal charges.
Answer:his fiery temper and desire for violence
Explanation: