حل سوالات و اموزش ریاضی،کانکور
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═══════════ ♥ೋღღೋ♥ ══════════ ♥ اللَّهُمَّ صَلِّ عَلَى مُحَمَّدٍ وَعَلَى آلِ مُحَمَّدٍ ♥ كَمَا صَلَّیْتَ عَلَى إِبْرَاهِیمَ وَعَلَى آلِ إِبْرَاهِیمَ إِنَّكَ حَمِیدٌ مَجِیدٌ ♥ اللَّهُمَّ بَارِكْ عَلَى مُحَمَّدٍ وَعَلَى آلِ مُحَمَّدٍ ♥ كَمَا بَارَكْتَ عَلَى إِبْرَاهِیمَ وَعَلَى آلِ إِبْرَاهِیمَ إِنَّكَ حَمِیدٌ مَجِیدٌ ═══════════ ♥ೋღღೋ♥ ══════════
وقت که هایدروجن ګاز باشه چرا در جدول در بین القلی زمینی قرار داره و ګروپ شروع شده
6. Water (H2O) - the most common liquid on Earth, essential for life and many industrial processes.
7. Ammonia (NH3) - a colorless, pungent gas that can exist as a liquid at low temperatures and high pressures. It is used in refrigeration systems and as a fertilizer.
8. Carbon dioxide (CO2) - a colorless gas that can exist as a liquid at low temperatures and high pressures. It is used in carbonation of beverages and as a coolant in some industrial processes.
9. Sodium (Na) - a soft, silvery-white metal that can exist as a liquid at high temperatures. It is used in the production of batteries, alloys, and other materials.
10. Potassium (K) - a soft, silvery-white metal that can exist as a liquid at high temperatures. It is used in the production of fertilizers, glass, and other materials.
Some minerals that can exist in a liquid condition include:
1. Mercury (Hg) - a silver-colored, dense liquid metal that is used in thermometers, barometers, and other scientific instruments.
2. Molten Lava - a liquid rock that is formed when solid rock melts under high temperatures and pressures.
3. Sulfur (S) - a yellow, viscous liquid that is often found near volcanic vents and hot springs.
4. Bromine (Br) - a reddish-brown, highly reactive liquid that is used in the production of flame retardants and other chemicals.
5. Gallium (Ga) - a silvery-white, low-melting point metal that can exist as a liquid at room temperature. It is used in semiconductors, LEDs, and other electronic devices.
Useful book for 1st class of Engineering students
Technical Drawing:
Lettering
Geometric shapes
Isometric
Multi views
Oblique
Section
Dimensioning
Perspective
Shade & Shadow
Sketch & itc
