If you are buying glassware for your chemistry class, the terms can be confusing. Pyrex and Kimex are brand names. The generic name is borosilicate glass. Yes, by all means buy borosilicate test tubes and a 250- mL beaker for your labs. They are heat tempered and much safer. BTW you are unlikely to need glass, graduated cylinders or volumetric flasks for a high school level chemistry class.
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