The reactants in the neutralization reaction are an acid and a base while the products are a salt and water.
A) - heat makes particles move faster, which usually makes the substance as a whole expand, but if the gas cannot expand the pressure will increase instead
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Answer : The volume in mL of the sodium carbonate stock solution is 364 mL.
Explanation :
According to dilution law:

where,
= molarity of aqueous sodium carbonate
= molarity of aqueous sodium carbonate stock solution
= volume of aqueous sodium carbonate
= volume of aqueous sodium carbonate stock solution
Given:
= 1.00 M
= 1.58 M
= 575 mL
= ?
Now put all the given values in the above formula, we get:


Therefore, the volume in mL of the sodium carbonate stock solution is 364 mL.
Ni(OH)₂(s) ⇄ Ni²⁺(aq) + 2OH⁻(aq)
Ksp=2.0*10⁻¹⁵
Ksp=[Ni²⁺][OH⁻]²
c=[Ni²⁺]=[OH⁻]/2
Ksp=c×(2c)²=4c³
c=∛(Ksp/4)
c=∛(2.0×10⁻¹⁵/4)=0.01995 mol/L ≈ 0.02 mol/l