Answer:
yes it is balanced.
Explanation:
when you are balancing an equation you look at the elements or compounds on the reactants and product side, which must have the same number of elements on both sides. like the question above;
2 potassium on the reactant and product side.
2 chlorine on the reactant and product side.
6 oxygen on the reactant and product side.
We need to use the following formula
Δ
n= 4 moles
F= constant= 96500C/mol
let's plug in the values.
ΔG= -(4)(96500)(0.24)=
-92640 J or -92.6 kJ
Answer:
128.4 g
Explanation:
Step 1: Given data
- Mass percent of element X in X(NO₃)₂: 52.55%
- Mass of the element X in the sample: 67.50 g
Step 2: Determine the total mass of the sample
The mass percent of element X in X(NO₃)₂ is 52.55%, that is, there are 52.55 g of X every 100 g of X(NO₃)₂. Then, the mass of X(NO₃)₂ that contains 67.50 g of X is:
67.50 g X × 100 g X(NO₃)₂/52.55 g X = 128.4 g X(NO₃)₂
<span>c. substance Is the best i think</span>
