1. If in the following diagram the substance is in solid form during stage 1, at what stage do the particles have no intermolecu
lar bonding?
(THERE IS A PIC AND IT'S THE FIRST ONE!!!)
1
3
5
Intermolecular bonding occurs during all stages.
2. Which of the following equations is not balanced?
N2 + 3H2 → 2NH3
MgI2 + Br2 → MgBr2 + I2
KClO3 → KCl + O2
HCl + NaOH → NaCl + H2O
3. In the alpha decay of Polonium-218, what daughter element is produced?
(PIC IS PIC 2)
4. Using the general equation above for a nuclear reaction, supply the following answer:
(PIC IS PIC 3)
There are (96,146,242) curium neutrons.
(THERE IS A PIC AND IT'S THE FIRST ONE!!!)
1
3
5
Intermolecular bonding occurs during all stages.
2. Which of the following equations is not balanced?
N2 + 3H2 → 2NH3
MgI2 + Br2 → MgBr2 + I2
KClO3 → KCl + O2
HCl + NaOH → NaCl + H2O
3. In the alpha decay of Polonium-218, what daughter element is produced?
(PIC IS PIC 2)
4. Using the general equation above for a nuclear reaction, supply the following answer:
(PIC IS PIC 3)
There are (96,146,242) curium neutrons.
2 answers:
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Answer:
The most important resonance structure is 4 (attached picture). Its bon order is or
.
Explanation:
A picture with 4 forms of the perchlorate structure is attached. The first structure has simple bonds. The second structure contains a double bond, the third structure has two double bonds and the fourth structure has three double bonds.
Formal charge = group number of the periodic table - number of bonds (number of bonding electrons / 2) - number of non-shared electrons (lone pairs)
The formal charges in the first structure is +3 in chlorine and -1 in oxygen.
The formal charges in the second structure is +2 in chlorine, -1 in oxygen and 0 in the double bond oxygen.
The formal charges in the third structure is +1 in chlorine, -1 in the single bond oxygens and 0 in the double bond oxygens.
The formal charges in the fourth structure is 0 in chlorine, -1 in the single bond oxygen and 0 in the double bond oxygens.
The most important resonance structure is given by:
- Most atoms have 0 formal charge.
- Lowest magnitude of formal charges.
- If there is a negative formal charge, it's on the most electronegative atom.
Hence, the fourth structure is the mosr important.
The bond order of the structure is:
Total number of bonds: 7
Total number of bond groups: 4
Bond order=
