A) Take a very spicy chilli and chew it it will clear up
b) Drink hot water
c) Take medicine
d) Exercise for a long time till it makes you drench it helps
Answer:
Possibly the addition of oxygen from the atmosphere
Explanation:
Answer:
Reactions are given below.
Explanation:
Chemical equation:
CuCl₂ + NaOH → Cu(OH)₂ + NaCl
Balanced Chemical equation:
CuCl₂(aq) + 2NaOH(aq) → Cu(OH)₂(s) + 2NaCl(aq)
Ionic equation:
Cu²⁺(aq) + 2Cl⁻(aq) + 2Na⁺(aq) + 2OH⁻(aq) → Cu(OH)₂(s) + 2Na⁺(aq) + 2Cl⁻ (aq)
Net ionic equation:
H⁺(aq) + OH⁻(aq) → H₂O(l)
The Cl⁻(aq) and Na⁺ (aq) are spectator ions that's why these are not written in net ionic equation. The Cu(OH)₂ can not be splitted into ions because it is present in solid form.
Spectator ions:
These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.
<u>Al2(SO4)3</u>
<u>Option: E</u>
<u>Explanation:</u>
The freezing point lowering of a solution depends on the number of ions and molecules that dissolve in water solution. So when there are more number of molecules, the freezing point will also be reduced more.
Now let us look at Al2(SO4)3. Here, it produces a total of 5 molecules. i.e (2 Al(3+) and 3 SO4(2-)). If we take the other choices from first:
MgBr2 - It produces a total of 3 molecules. (1 Mg(2+) and 2 Br(-))
HOCH2CH3 - This produces 1 molecule as it remains the same as HOCH2CH3 because it is covalent and does not dissociate in water.
NaNO3 - This produces 2 molecules. (1 Na(1+) and 1 NO3(-))
C6H12O6 - This also produces 1 molecule same as HOCH2CH3 because it is also covalent and does not dissociate in water.
Na3PO4 - This produces a total of 4 molecules. (3 Na(+) and 1 PO4(3-))
Thus, from the above analysis, it shows that Al2(SO4)3 has more molecules compared to others. When there are more molecules, the freezing point is also lower.
Answer:
Explanation:
Its chemical energy to Chemical energy because carbon is a chemical in science sorry if its incorrect.