PDF chapter test TRY NOW
Fill in the correct answer for the following questions from the options given:
Glass | Oven-proof borosilicate | Water |
Calcium carbonate | Potash- lime | Potassium carbonate |
1. __________ is that the only material which can be recycled over and once again without losing its quality.
2. __________ glass (widely sold under the trademark PYREX) is formed by adding boron oxide to the molten mixture.
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