1. What are the possible sources of error? a. friction between the plunger and the gas syringe b. leakage of gas between the junctions c. heat given out by the reaction may cause gas to expand and the volume record may be inaccurate d. not all hydrogen produced goes into the gas syringe ⠀⠀⠀⠀⠀⠀⠀⠀⠀ 2. Why are magnesium and hydrochloric acid kept separate in the set-up? - so that the starting time of the reaction can be measured accurately (from the time when the thread is loosened so that Mg and react with HCl) ⠀⠀⠀⠀⠀⠀⠀⠀⠀ DSE Chem教科書加加埋埋成2000頁，覺得無從入手？到底邊啲先係溫習重點？唔使擔心！Melody嘅化學科筆記已經涵蓋左操練30年歷屆試題後所得嘅心得，濃縮成試題備註，全部載於同一本筆記，話比你知點樣完美擊中Marking Scheme要求。加上自創超入腦易背口訣，要背metal reactivity series及各種exceptions等難入腦知識點，統統無難度！仲唔快啲上我地嘅線上平台，免費下載筆記sample？ - 全港唯一雙料狀元線上補習平台 – 免費試讀！ www.mteducationhk.com 1) 5**濃縮精華筆記：狀元Melody Tam親撰濃縮精華筆記，絕對不拖時間，真正去蕪存菁，適合想於短時間內升Grade的你 2) 30年操卷祕技傾囊相授：Melody Tam應考前曾多次操練各科30年的Past Paper，將心得精華、試題備註傾囊相授，伏位、失分位一應俱全 3) 無限次重溫教學：安坐家中便能無限次重溫高質素教學影片，隨時隨地學習狀元考試秘技—— 你還願意到大型補習社上video class嗎？ - 早註冊 = 早享受 一站式平台比過往自動化好多，唯一須人手審批嘅步驟就係註冊（因為我地採用實名登記，所以會喺72小時內處理），之後就可以即買即睇！註冊後更加可以觀看所有免費課程同下載筆記（比免費資源下載頁內容更多！），免費資源不斷更新中，大家早註冊早享受～ - #中學文憑試 #文憑試 #dseeng #dse中文 #dsechinese #dsechinesenotes #dse英文 #dse英文筆記 #dsenotes #hkdse2022 #hkdse2020 #hkdse2021 #hkdseenglishwriting #狀元筆記 #hkdsebiology #dseeng #dseenglish #melodytam #melodytamnotes #melodytamnote #讀書心得 #studytips #二手筆記 #補習筆記 #dsenotes #dsechem #dse化學 #dsechemistry

https://www.facebook.com/105259197447/posts/10159343463607448/ 【壹傳媒聲明】堅守崗位，撐到底！ 【STATEMENT OF NEXT DIGITAL LIMITED】 中文: https://bit.ly/30FEF5A English: https://bit.ly/2DGeSS7 壹傳媒創辦人黎智英及集團多名高層人員被警方以《國安法》及其他罪行為由拘捕，數以百計警員到《蘋果日報》大樓封鎖搜查，企圖以威嚇手段侵害新聞自由，製造白色恐怖，《蘋果日報》感到極度憤怒，並予以最強烈譴責。 香港警隊屢稱依法辦事，但公然違規濫權，包括無視法庭搜查令限制，肆無忌憚翻閱新聞採訪材料、限制編採人員活動和履行採訪職務，阻撓新聞機構正常運作。面對此等不合法、不合理的橫蠻行徑，《蘋果日報》仝人定必以無畏無懼的態度，繼續在打壓中，以真相說亮話。 港版《國安法》聲言香港居民享有言論、新聞、出版自由，警隊種種行徑，已向香港及國際社會作了一次反面示範。搜查新聞機構嚴重衝擊新聞自由，為文明社會所不容，政權以為滋擾及威嚇便能令我們噤聲，欲將一個國際城市逼退至第三世界、極權社會水平。香港新聞自由岌岌可危，現時更被推至懸崖邊緣，面對危急關頭，《蘋果日報》仝人必定緊守崗位，捍衞新聞自由。 正如《蘋果日報》社長張劍虹所言：「《蘋果》一定撐下去。」 Following the arrests of Jimmy Lai, founder of Next Digital, and executives of the media group under the national security law on Monday, several hundreds of police officers conducted a raid at the Apple Daily headquarters. Officers were seen rifling through documents in the newsroom, breaching press freedom through intimidation and creating an atmosphere of white terror. Apple Daily is furious and hereby strongly condemns the operation. The Hong Kong Police Force have blatantly bypassed the law and abused their power, despite claims about acting according to the rules. They have, for instance, ignored the limitation of the search warrant and rifled through news materials, as well as restricting press members from reporting and obstructing a news organization from operating. In the face of these illegal, unreasonable and barbaric tactics, the staff of Apple Daily will stay fearless and continue speaking the truth amid persecution. Beijing’s national security law for Hong Kong claims to guarantee residents’ freedom of speech, of the press and of publication, but the authorities’ actions have proved otherwise. Raiding a news institution is a severe attack on press freedom and should not be tolerated in a civilized society. The regime believes that we will be silenced by intimidation and harassment, and that they can take an international city down the path of autocracy. Hong Kong’s press freedom is now hanging by a thread, but our staff will remain fully committed to our duty to defend the freedom of the press. As Publisher of Apple Daily Cheung Kim Hung says: Apple Daily

💫 這兩天看到以下這篇轉發文章，令人感慨，也值得深思。 我在網上搜查出處，文章原是來自一位印度醫生 Dr. Jagadish J Hiremath 於 3 月 23 日在 Twitter 上發佈的貼文。 . 在這裡跟大家分享原文，以及我的中文翻譯版本，希望也能為你們帶來一點的啟發。 . . ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 🔸「保持社交距離是一種特權。 這表示你住在一所擁有足夠空間去實踐社交距離的房子。 洗手也是一種特權。這表示你可以使用自來水。 洗手液是一種特權。這表示你有錢去購買它們。 禁閉是一種特權。這表示你可以負擔得起留在家裡。 抵禦冠狀病毒的大部分方法只有富人才能使用。 實質上，一種在富人飛遍全球時傳播的疾病，現在將會殺死數百萬窮人。 所有正在實踐社交距離和將自己禁閉的人，必須意識到我們有多麼的幸運。 更重要的是，那些能夠這樣做，但仍然四處走動去感染他人（尤其是窮人）的人，都是罪犯。 窮人負擔不起，請體諒。」 . ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ Recent note from a Twitter thread by an Indian doctor, Dr. Jagadish J Hiremath: . 🔹 "Social distancing is a privilege. It means you live in a house large enough to practise it. Hand washing is a privilege too. It means you have access to running water. Hand sanitisers are a privilege. It means you have money to buy them. Lockdowns are a privilege. It means you can afford to be at home. Most of the ways to ward off Corona are accessible only to the affluent. In essence, a disease that was spread by the rich as they flew around the globe will now kill millions of the poor. All those who are practising social distancing and imposed a lockdown on themselves must appreciate how privileged we are. More importantly those who can do it yet still move around infecting others especially the poor are criminals. Poor cannot afford it, please be considerate." . . ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 📍 這篇文章給予你甚麼感想呢？歡迎留言分享 ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 📍 請轉發這貼文跟你的朋友分享 ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ . . #珍惜 #感恩 #活在當下 #吳蔚蔚藍天絮語 . . ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 吳蔚蔚 Queenie Ng @queeniengsky 散文集 #愛從小事開始 作者