<h2>Answer :2PbSO4 → 2PbSO3 + O2 </h2>
Brass is a homogeneous mixture.
In the liquid state, the copper and zinc formed a solution.
They did not separate from each other when the brass solidified.
Thus, brass is a solid solution.
The answer would be D.) convex
The volume of the given solution is 2.5 L.
<u>Explanation:</u>
Volume of the solution = 2500 mL
We have to convert it into litres as,
1000 mL = 1 litre
To convert ml into litres we have to divide the millilitres by 1000, so that it can be converted into L.
Here given volume is 2500 mL.
Volume in L = 
= 2.5 L
So the volume of the solution is 2.5 L.
The lab safety equipment that is least likely to be used if proper eye protection is used is d. fire extinguisher<span>. A fire extinguisher serves to put fires out by cutting off the oxygen to a fire and operates by a spraying action. Even if an injury occurs, a fire extinguisher is extremely unlikely to be used.</span>
