Answer:
FC of C = -1
General Formulas and Concepts:
- Lewis Dot Structures
- Resonance Structures
- Formal Charge: FC = # of valence e⁻ - # of lone e⁻ - # of bonds
Explanation:
<u>Step 1: Define</u>
Carbon (C)
- 4 valence e⁻
- 2 lone e⁻
- 3 bonds
Oxygen (O)
- 6 valence e⁻
- 2 lone e⁻
- 3 bonds
<u>Step 2: FC of C</u>
- Substitute: FC = 4e⁻ - 2e⁻ - 3
- Subtract: FC = -1
Explanation:
Isopropyl alcohol is the solvent used in whiteboard markers. When it comes into contact with the permanent marker, the solvent breaks the cohesive force between the ink molecules and the whiteboard by solubilising them (i.e. returning them to solution).
Answer:
![\frac{1}{10}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B10%7D)
Explanation:
First write all numerators above the common denominator
4/5 - 1/2 - 1/2=
- 1/2
Subtract the numbers
- 1/2 =
-
Write all numerators above the least common denominator 10
-
=
![\frac{6-5}{10}](https://tex.z-dn.net/?f=%5Cfrac%7B6-5%7D%7B10%7D)
Subtract the numbers and you got your answer :)
Answer:
I think it's either A or D I'm not sure hope that I helped you.
Answer: The activation energy for the reaction is 209 kJ
Explanation:
According to the Arrhenius equation,
or,
where,
= rate constant at
=
= rate constant at
=
= activation energy for the reaction = ?
R = gas constant = 8.314 J/mole.K
= initial temperature =
= final temperature =
Now put all the given values in this formula, we get
:
Therefore, the activation energy for the reaction is 209 kJ