هنگامی که سدیم هیدروکسید (NaOH) به محلولی حاوی فنل‌فتالئین افزوده می‌شود، محیط محلول قلیایی شده و فنل‌فتالئین به رنگ صورتی یا ارغوانی زیبایی تغییر رنگ می‌دهد.
🌸 این واکنش یکی از آزمایش‌های جذاب شیمی برای نشان دادن تغییرات pH است! 🧪🌈
هنگامی که سدیم هیدروکسید (NaOH) به محلولی حاوی فنل‌فتالئین افزوده می‌شود، محیط محلول قلیایی شده و فنل‌فتالئین به رنگ صورتی یا ارغوانی زیبایی تغییر رنگ می‌دهد.
🌸 این واکنش یکی از آزمایش‌های جذاب شیمی برای نشان دادن تغییرات pH است! 🧪🌈
The perpetrators use various names to carry out the investment scams. They may also impersonate or clone licensed capital market intermediaries by using the names, logos, credentials, websites and other details of the legitimate entities to promote the illegal schemes. "Like the bombing of the maternity ward in Mariupol," he said, "Even before it hits the news, you see the videos on the Telegram channels." Ukrainian forces have since put up a strong resistance to the Russian troops amid the war that has left hundreds of Ukrainian civilians, including children, dead, according to the United Nations. Ukrainian and international officials have accused Russia of targeting civilian populations with shelling and bombardments. Soloviev also promoted the channel in a post he shared on his own Telegram, which has 580,000 followers. The post recommended his viewers subscribe to "War on Fakes" in a time of fake news. WhatsApp, a rival messaging platform, introduced some measures to counter disinformation when Covid-19 was first sweeping the world.
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