10
0
Khí X từ nhựa PVC cháy có thể là CH3Cl, tạo kết tủa trắng với AgNO3. Phân biệt da thật và PVC qua cảm giác, PP tổng hợp từ propylene, X là plexiglas.
Of course not! AhaSlides account is 100% free of charge with unlimited access to most of AhaSlides’s features, with a maximum of 50 participants in the free plan.
If you need to host events with more participants, you can upgrade your account to a suitable plan (please check out our plans here: Pricing - AhaSlides) or contact our CS team for further support.
At the moment, users can import PowerPoint files and Google Slides to AhaSlides. Please refer to these articles for more information: