Answer:
7 protons
Isotopes are atoms that have the same number of protons but different numbers of neutrons in the nucleus. You know that nitrogen-14 has 7 protons in the nucleus because it is an isotope of nitrogen, which has an atomic number equal to 7 .
Answer:
Option NH 3 is the correct answer.
Explanation:
A molecule which has hydrogen bonding will have the highest boiling point. So, out of the given options only NH 3 will have hydrogen bonding.
Whereas in CHCI 3 there will be dipole-dipole interactions and no hydrogen bonding within the molecule.
In OF 2 and C 6H 6, there will be dipole-dipole interaction in both the molecules.
Thus, we can conclude that NH 3 will have the highest boiling point.
In this redox reaction, we must identify which is reduced and which is oxidized. Cl is oxidized from -1 to 0, Mn is reduced from +7 to +2.
<span>MnO−4+Cl−→Mn2++Cl2</span>Balance the number of Cl first.
<span>MnO−4+2Cl−→Mn2++C<span>l2
</span></span><span>MnO−4+10Cl−→2M<span>n2+</span>+5C<span>l2
</span></span>Balance the number of oxygen by adding <span>H2O</span>
<span>2MnO−4+10Cl−→2M<span>n2+</span>+5Cl2+8H2O
</span>Balance the number of H by adding H+
<span>2MnO−4+10Cl−+16H+→2M<span>n2+</span>+5Cl2+8H2O
</span>
Now, we know that there are 2 H+ in <span>H2SO4</span>, so, we can get
<span>2MnO−4+10Cl−+8H2SO4→2M<span>n2+</span>+5Cl2+8H2O
</span>
Put <span>S<span>O2−4</span></span> with <span>M<span>n2+</span></span>
<span>2MnO−4+10Cl−+8H2SO4→2MnSO4+5Cl2+8H2O
</span>
Add K in front of <span>MnO−4</span> and <span>Cl−</span> and balance it on the right
<span>2KMnO4+10KCl+8H2SO4→12K++2MnSO4+5C<span>l<span>2 + 8H20
The final answer is </span></span></span>2KMn<span>O4</span><span>+10KCl+8</span><span>H2</span><span>S</span><span>O4</span><span>→6</span><span>K2</span><span>S</span><span>O4</span><span>+2MnS</span><span>O4</span><span>+5C</span><span>l2</span><span>+8</span><span>H2</span><span>O</span>
Answer:
The first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of a given element are identical in mass and properties. The third part says compounds are combinations of two or more different types of atoms.
Explanation:
Hope this helps u
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