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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! 🧪🌈
Russians and Ukrainians are both prolific users of Telegram. They rely on the app for channels that act as newsfeeds, group chats (both public and private), and one-to-one communication. Since the Russian invasion of Ukraine, Telegram has remained an important lifeline for both Russians and Ukrainians, as a way of staying aware of the latest news and keeping in touch with loved ones. For tech stocks, “the main thing is yields,” Essaye said. The Securities and Exchange Board of India (Sebi) had carried out a similar exercise in 2017 in a matter related to circulation of messages through WhatsApp. Markets continued to grapple with the economic and corporate earnings implications relating to the Russia-Ukraine conflict. “We have a ton of uncertainty right now,” said Stephanie Link, chief investment strategist and portfolio manager at Hightower Advisors. “We’re dealing with a war, we’re dealing with inflation. We don’t know what it means to earnings.” 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.
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