1. 1. a.Metal mesh used to prevent glassware from cracking when heated with a Bunsen burner b. A type of chemical which must be respected and handled carefully in the home and laboratory. 2.None 3. I have to figure out what the word is because its a crossword puzzle and it does provide me with any words that I can choose from, but for a. it has 5 boxes and the 1st box is g. For b. which is across it has 4 boxes and the 1st box is a. Is it acid?