This is a
redox reaction where oxidation and a reduction occur.
<span>Here, Mg goes to Mg²</span>⁺ <span>by changing
its oxidation
number from 0 to +2 while S goes
to S²</span>⁻ <span>by reducing its oxidation
state from 0 to -2 .
Hence Mg is
oxidized by S in the
reaction.</span>
Reducing agent <span>is a substance which reduces other
substance by oxidizing itself. Hence, the reducing
agent of this reaction
is <span>Magnesium.</span></span>
<span> Because it is diprotic acid, we can write like R(COOH)2 ( it can be written as H2A also)
</span>R(COOH)2+2NaOH ----> R(COONa)2+2H2O
<span>25.0 ml of a 0.100 m NaOH solution
25.0 ml=0.0250 L solution Of NaOH
</span> 0.100 m NaOH=0.100 mol/L
0.0250 L *0.100 mol/L=0.00250 mol NaOH
0.00250 mol NaOH*1mol R(COOH)2/2 mol NaOH=0.00125 mol acid
0.00125 mol R(COOH)2*118g R(COOH)2/1mol R(COOH)2 = 0.148 g acid
Answer is 0.148 g <span>Succinic acid</span>
Answer: Heterogeneous type of mixture.
Explanation:
This type of mixture are easily be seen and one may need a microscope sometimes. This category includes the suspensions where visible particles settles.
A change from physical change into chemical change not sure hope this helps
none of the above. is the answer