Question

Прозрачное, бесцветное, твердое, хрупкое, не тает

Answer 1

Прозрачное,бесцветное,твердое,хрупкое, не тает- это стекло

Answer 2

Physical Properties of the Substance

The substance you described is transparent, colorless, solid, and brittle. It does not melt.

Identification of the Substance

Based on the provided description, it is difficult to determine the exact identity of the substance without additional information. However, there are several possibilities for substances that exhibit these properties.

One possibility is ice. Ice is transparent, colorless, solid, and brittle. It does not melt but rather undergoes a phase change from solid to liquid when heated. Here is an image of ice:  Another possibility is glass. Glass is also transparent, colorless, solid, and brittle. It does not melt but rather softens and becomes more viscous when heated. Here is an image of glass:  Please note that these are just examples, and there may be other substances that exhibit similar properties.

Conclusion

In conclusion, the substance you described is transparent, colorless, solid, and brittle. It does not melt. Based on these properties, it could potentially be ice or glass, among other possibilities.