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Cupcakes baked with baking soda as a raising agent. Sodium bicarbonate (IUPAC name: sodium hydrogencarbonate [9]), commonly known as baking soda or bicarbonate of soda, is a chemical compound with the formula NaHCO 3.
The Tai Tam Reservoirs, also known as Tai Tam Reservoir Group, is a group of reservoirs located in the Tai Tam Country Park in the eastern part of Hong Kong Island in Hong Kong. The four reservoirs have a total storage capacity of 6.2 million cubic metres.
The only hydrates with stable melting points are NaOH·H 2 O (65.10 °C) and NaOH·3.5H 2 O (15.38 °C). The other hydrates, except the metastable ones NaOH·3H 2 O and NaOH·4H 2 O (β) can be crystallized from solutions of the proper composition, as listed above. However, solutions of NaOH can be easily supercooled by many degrees, which ...
Tam thiên tự (chữ Hán: 三千字; literally 'three thousand characters') is a Vietnamese text that was used in the past to teach young children Chinese characters and chữ Nôm. [ 1 ] [ 2 ] It was written around the 19th century. [ 3 ]
Sodium carbonate (also known as washing soda, soda ash and soda crystals) is the inorganic compound with the formula Na 2 CO 3 and its various hydrates.All forms are white, odourless, water-soluble salts that yield alkaline solutions in water.
Thiourea (/ ˌ θ aɪ. oʊ j ʊəˈr iː. ə,-ˈ jʊər i-/) [2] [3] is an organosulfur compound with the formula SC(NH 2) 2 and the structure H 2 N−C(=S)−NH 2.It is structurally similar to urea (H 2 N−C(=O)−NH 2), with the oxygen atom replaced by sulfur atom (as implied by the thio-prefix).
HCl + NaOH → NaCl + H 2 O. Acidimetry is the specialized analytical use of acid-base titration to determine the concentration of a basic (alkaline) substance using standard acid. This can be used for weak bases and strong bases. [8] An example of an acidimetric titration involving a strong base is as follows: Ba(OH) 2 + 2 H + → Ba 2+ + 2 H 2 O
Marquis Hoài Văn, better known as Trần Quốc Toản (chữ Hán: 陳 國 瓚), born 1267 (fl. 1267–1285), was a marquis of the Trần dynasty who was well known for his active role in the second war of resistance of Đại Việt against the Mongol invasion.