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page 535 - a narrow rocket flying from a square launchpad now kilometres below.

Hydrazine (N₂H₄) is a colourless, flammable liquid with an ammonia-like odour. It is commonly used as a fuel for rockets and a propellant in spacecrafts. ------------------------------------------------------------------------ 👍Please like, comment and share @chemsir.talking.chemistry and tag your friends. ------------------------------------------------------------------------ 👉Follow @chemsir.talking.chemistry and @chemsir_lee_wai_hon for more chemistry materials. ------------------------------------------------------------------------ 🙏Thank you for your support. Wish you enjoy the page! ------------------------------------------------------------------------ #ChemsirTalkingChemistry #chem #chemistry #science #hydrazine #N2H4 #StructuralFormula #StructuralFormulae #electrons #electron #ammonia #propellant #spacecraft #spacecrafts #CovalentBonds #CovalentBond #chemistrylover #chemistrylovers #chemistryaddict #chemistryaddicts #hkdse #dse #Chemsir同你講化學 #化學 #科學 #聯氨 #氨 #結構式 #電子 #Chemsir https://www.instagram.com/p/CIuva8thVXw/?igshid=1m3p1livpw6c0

Let’s swing easy into the weekend

DOWNLOAD HIGH RES VIDEO LOOP FILE GET 2K ENTIRE 118 DISCOVERED ELEMENTS VISUAL LOOP PACK  Argon constitutes 0.934% by volume and 1.288% by mass of the Earth's atmosphere,[18] and air is the primary industrial source of purified argon products. Argon is isolated from air by fractionation, most commonly by cryogenic fractional distillation, a process that also produces purified nitrogen, oxygen, neon, krypton and xenon.[19] The Earth's crust and seawater contain 1.2 ppm and 0.45 ppm of argon, respectively. Argon is produced industrially by the fractional distillation of liquid air in a cryogenic air separation unit; a process that separates liquid nitrogen, which boils at 77.3 K, from argon, which boils at 87.3 K, and liquid oxygen, which boils at 90.2 K. About 700,000 tonnes of argon are produced worldwide every yea Argon is produced industrially by the fractional distillation of liquid air in a cryogenic air separation unit; a process that separates liquid nitrogen, which boils at 77.3 K, from argon, which boils at 87.3 K, and liquid oxygen, which boils at 90.2 K. About 700,000 tonnes of argon are produced worldwide every year, Cryosurgery procedures such as cryoablation use liquid argon to destroy tissue such as cancer cells. It is used in a procedure called "argon-enhanced coagulation", a form of argon plasma beam electrosurgery. The procedure carries a risk of producing gas embolism and has resulted in the death of at least one patient Argon is used as a propellant in the development of the Variable Specific Impulse Magnetoplasma Rocket (VASIMR). Compressed argon gas is allowed to expand, to cool the seeker heads of some versions of the AIM-9 Sidewinder missile and other missiles that use cooled thermal seeker heads. The gas is stored at high pressure.

Photo by SpaceX.