A chemical change creates a new substance
Answer:
So the balanced chemical equation would look like this:
4NO + 6
O -> 4N
+ 5
sorry i dont k how to find the moles when im already given a value :(
Explanation:
Answer:
Resonance structures are represented in the picture below.
Explanation:
When there is a double pair of electrons shared between atoms in a molecule, the position of these electrons can be changed, without changing the molecule conformation. This occurs to stabilization, the electrons are relocated. These structures are called resonance structures.
In the molecule of NO₂F, nitrogen has 5 electrons in its valence shell, so it needs 3 electrons to be stable. Oxygen has 6 electrons and needs 2 to be stable, and fluor has 7 electrons and needs one electron to be stable.
Nitrogen still has electrons after the sharing, so it can also share one pair and will have a partial positive charge. One of the oxygens will not complete the octet, so will share only one pair f electron and will have a partial negative charge, that will compensate the positive charge in nitrogen.
The two resonance structures are shown below:
Answer:
C. 10/9 gallons
Explanation:
Given that
V= 20 gallons
Volume of ethanol = 5% of V = 0.05 x 20 = 1 gallons
Volume of the gasoline = 95 % of V = 19 gallons
Lets take x gallons of ethanol is added to achieve optimum performance.
(1+x)/(20+x) = 10 %
(1+x)/(20+x) =0.1
1+ x = 0.1 ( 20+ x)
1+ x = 2 + 0.1 x
1 = 0.9 x
x= 10 /9 gallons
So the option C is correct.
C. 10/9 gallons