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  1. › wiki › AmmoniaAmmonia - Wikipedia

    1 天前 · Ammonia is a colourless gas with a characteristically pungent smell. It is lighter than air, its density being 0.589 times that of air. It is easily liquefied due to the strong hydrogen bonding between molecules.

  2. › wiki › ChlorineChlorine - Wikipedia

    2 天前 · Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity on the revised Pauling scale, behind only oxygen and fluorine.

    • −1
    • chloride
    • Cl −
  3. › wiki › ALSALS - Wikipedia

    2 天前 · ALS is a motor neuron disease, which is a group of neurological disorders that selectively affect motor neurons, the cells that control voluntary muscles of the body. [3] .

  4. 1 天前 · This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for duplex, bidirectional traffic. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exist.

  5. › wiki › NicotineNicotine - Wikipedia

    2 天前 · Nicotine is a naturally produced alkaloid in the nightshade family of plants (most predominantly in tobacco and Duboisia hopwoodii) [9] and is widely used recreationally as a stimulant and anxiolytic. As a pharmaceutical drug, it is used for smoking cessation to relieve withdrawal symptoms.

  6. 1 天前 · The following is a list of ongoing armed conflicts that are taking place around the world. Criteria. Conflict deaths in the 17 deadliest conflicts 2015–2020. This list of ongoing armed conflicts identifies present-day conflicts and the death toll associated with each conflict. The criteria of inclusion are the following:

  7. 2 天前 · Google Translate is a multilingual neural machine translation service developed by Google to translate text, documents and websites from one language into another. It offers a website interface, a mobile app for Android and iOS, as well as an API that helps developers build browser extensions and software applications. [3] .