I want to know the answer to the following question:
Why is lime often added to glass?
All the background I'm provided with is that "The soda makes the glass water-soluble, which is usually undesirable, so lime (calcium oxide [CaO], generally obtained from limestone), some magnesium oxide (MgO) and aluminium oxide (Al2O3) are added to provide for a better chemical durability.". Is that enough to answer the question?
Answer: yes