To determine the balanced chemical equation and net ionic equation.
Explanation of Solution
Given Information:
The unbalanced chemical equation is Zn(s) + HCl(aq) → H2(g) + ZnCl2(aq)
The Balanced chemical equation is-
Zn(s) + 2 HCl(aq) = H2(g) + ZnCl2(aq)
In the Balanced chemical equation Zn, H, & Cl atoms remain unchanged on both the sides. Copper ion is the spectator ion here so the net ionic equation will be as follows −
Zn(s)**#x00A0;+ 2 H+(aq) = H2(g) + Zn2+(aq)
Expert Solution
Interpretation Introduction
To Determine:
To determine the balanced chemical equation and net ionic equation.
Explanation of Solution
Given Information:
The unbalanced chemical equation is Mg(OH)2(s) + HCl(aq) → MgCl2(aq) + 2 H2O
The Balanced chemical equation is-
Mg(OH)2(s) + 2 HCl(aq) = MgCl2(aq) + 2 H2O
In the Balanced chemical equation Mg, H, O, & Cl atoms remain unchanged on both the sides. There are no spectator ions here so the net ionic equation will be as follows −
Mg(OH)2(s)**#x00A0;+ 2 H+(aq) = Mg2+(aq) + 2 H2O
Expert Solution
Interpretation Introduction
To Determine:
To determine the balanced chemical equation and net ionic equation.
Explanation of Solution
Given Information:
The unbalanced chemical equation is - HNO3(aq) + CaCO3(s) → Ca(NO3)2(aq) + H2O + CO2(g)
In the Balanced chemical equation Ca, H, C, O, & N atoms remain unchanged on both the sides. There are no spectator ions here so the net ionic equation will be as follows −
In the Balanced chemical equation N, H, S, Cl & Fe remain unchanged on both the sides. Copper ion is the spectator ions here so the net ionic equation will be as follows −
13
Consider the "C NMR spectrum below.
140
120
100
80
60
40
20
20
PPM
0
The spectrum belongs to which one of the following constitutional isomers of the compound C,H12? Select the single best answer.
Check
✓
G
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The structure of compound 1,3,5-trimethylbenzene (mesitylene) is given below.
How many signals would you expect to find in the 'H NMR spectrum of 1,3,5-trimethylbenzene (mesitylene)?
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×
1
How many signals do you expect in the 'H NMR spectrum for this molecule?
CI CI
Cl
Write the answer in the table below.
Also, in each of the drawing areas below is a copy of the molecule, with H atoms shown. In each copy, one of the H atoms is highlighted red. Highlight in red all
other H atoms that would contribute to the same signal as the H already highlighted red.
Note for advanced students: Remember, a multiplet is considered one signal in the 'H NMR spectrum.
1
Number of signals in the 'H NMR spectrum.
☐
For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to the same
signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
No additional H atoms to highlight in
top molecule
For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute to the
same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at…
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