Answer:C, atoms must balance positive and negative particles.
Explanation: Got it correct on edgenuity.
<span>Answer: option (b) atoms share electrons unequally.
That is because although the molecule or compound is neutral, some atoms will bear more electron density than others, so the atomes inside the compound that have more electron density will be partially negative while the atoms with less electron density will be partially positive.
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Answer:
We need 247 mL of NaOH
Explanation:
Step 1: Data given
Molarity of NaOH = 0.587 M
Volume of 0.445 M NiBr2 solution = 163 mL = 0.163 L
Step 2: The balanced equation
NiBr2(aq) + 2NaOH(aq) Ni(OH)2(s) + 2NaBr(aq)
Step 3: Calculate moles of NiBr2
Moles NiBR2 = Molarity NiBR2 * volume
Moles NiBR2 = 0.445 M * 0.163 L
Moles NiBR2 = 0.0725 moles
Step 3: Calculate moles of NaOH
For 1 mol NiBr2 consumed, we need 2 moles NaOH
For 0.0725 moles NiBR2, we need 2* 0.0725 = 0.145 moles NaOH
Step 4: Calculate volume of NaOH
Volume = moles NaOH / Molarity NaOH
Volume = 0.145 moles / 0.587 M
volume = 0.247L = 247 mL
We need 247 mL of NaOH
Answer : The shape of the fluoroform molecule is Tetrahedral.
Explanation :
First we have to calculate the Hybridization of the molecule by formula,
![\text{Number of electrons} = \frac{1}{2}[V+H-C+A]](https://tex.z-dn.net/?f=%5Ctext%7BNumber%20of%20electrons%7D%20%3D%20%5Cfrac%7B1%7D%7B2%7D%5BV%2BH-C%2BA%5D)
where,
V = Number of valence shell electron in central atom
H = Number of neighboring monovalent atom
C = charge of cation
A = charge of anion
The central atom in this molecule is Carbon, it has 4 electrons in their valence shell.
The neighboring monovalent atoms are one Hydrogen atom and three Fluorine atom.
There is no charge of cation and anion on the given molecule.
V = 4
H = 1 Hydrogen atom + 3 fluorine atom = 4
C = 0
A = 0
By the above hybridization formula, we get
![\text{Number of electrons}= \frac{1}{2}[4+4-0+0]](https://tex.z-dn.net/?f=%5Ctext%7BNumber%20of%20electrons%7D%3D%20%5Cfrac%7B1%7D%7B2%7D%5B4%2B4-0%2B0%5D)
= 4
The number of electron pair = 4
The number of lone pair = 0
The number of electrons is 4, this means that the hybridization is 
and the geometry of the molecule is Tetrahedral.
The geometry of the molecule is shown below.
Al + Br2 → AlBr3 To balance the Br’s, make 3 Br2 and 2 AlBr3. Al + 3 Br2 → 2 AlBr3
To balance the equation, make 2 Al.
2 Al + 3 Br2 → 2 AlBr3 ...... if you would like more information please let me know and I can help you out
