Use a calculator to add those thank you ur welcome
It is easier to determine this if we draw the structural formula of lactic acid as shown in the attached picture. There are three functional groups in lactic acid: carboxyl group, hydroxyl group, and the parent alkane chain. Any of the hydrogens in the alkane chain is the least acidic. Then, it is followed by the H in the hydroxyl group. The most acidic is the H in the carboxyl group.
1.505X10^24 hope this helped :)
Answer:
2CaO + 2CO2 → 2CaCO2 + O2 is right
Blocks of magnesium is used to prevent iron corrosion.
This way of prevention is called sacrificial protection.