https://padlet.com/nhhs/qf85aqwksxzz97h6 Made with curiosity, learning and lots of fun! en-us 2023-05-13 16:39:26 UTC 2026-02-23 03:31:58 UTC hello@padlet.com https://padlet.net/icons/png/1f9ea.png sheena_ng https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2589633542 Upload a photo of your shampoo/soap that shows the presence of an alkali! ]]> 2023-05-13 16:42:51 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2589633542 sheena_ng https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2589634553 https://nhhs.padlet.org/wang_shiyun/preparation-of-salts-307-pi7ce7dyn6vaujku

Click on the above link to enter the Padlet for today's practical!]]> 2023-05-13 16:45:25 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2589634553 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2589866583 2023-05-14 05:57:35 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2589866583 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2589866996 脂肪酸钠 RCOONA weak alkaline substance when dissolved in water]]> 2023-05-14 05:59:19 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2589866996 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590028545 2023-05-14 13:19:48 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590028545 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590055267 2023-05-14 14:09:58 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590055267 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590078707 2023-05-14 14:49:42 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590078707 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590117238 2023-05-14 15:54:30 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590117238 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590120586 2023-05-14 16:00:02 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590120586 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590145815 2023-05-14 16:44:59 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2590145815 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2593139812 2023-05-16 13:51:52 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2593139812 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2593738922 2023-05-16 22:39:30 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2593738922 sheena_ng https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2594839853 Write out a balanced chemical equation, with state symbols, and ionic equation for the reaction between copper(II) sulfate and sodium hydroxide. Suggest what you will observe for the reaction. 

You can submit an image of your equations and type out your expected observations. ]]> 2023-05-17 14:40:05 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2594839853 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2595345692 2023-05-17 23:22:48 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2595345692 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596036104 2023-05-18 08:57:47 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596036104 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596053144 2023-05-18 09:17:09 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596053144 nh24_hu_xinhui2 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596112727 https://drive.google.com/drive/search?q=nhhs%20after:2023-05-18]]> 2023-05-18 10:37:00 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596112727 nh24_hu_xinhui2 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596113407 https://drive.google.com/drive/search?q=nhhs%20after:2023-05-18]]> 2023-05-18 10:37:39 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596113407 nh24_hu_xinhui2 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596114331 https://drive.google.com/drive/search?q=nhhs%20after:2023-05-18]]> 2023-05-18 10:38:56 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596114331 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596115210 2023-05-18 10:40:12 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596115210 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596170954 2023-05-18 11:53:40 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596170954 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596229167 2023-05-18 12:53:41 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596229167 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596238538 2023-05-18 13:02:35 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596238538 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596250919 2023-05-18 13:12:49 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596250919 nh24_lee_jun_le_duncan1 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596337976 2023-05-18 14:19:01 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596337976 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596786311 2023-05-18 22:13:46 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596786311 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596808000 2023-05-18 23:01:18 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596808000 nh24_zhang_zhiyuan_2 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596816574 2023-05-18 23:17:43 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596816574 nh24_zhang_zhiyuan_2 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596817678 2023-05-18 23:19:52 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596817678 nh24_belle_heng https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596829922 2023-05-18 23:40:00 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596829922 nh24_lee_xin_le1 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596877302 2023-05-19 00:32:44 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596877302 nh24_kayson_yak_yu_feng1 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596892868 2023-05-19 00:45:22 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596892868 nh24_wong_jia_ning https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596894468 2023-05-19 00:46:52 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596894468 nh24_lim_rayanne1 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596901728 2023-05-19 00:52:55 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596901728 nh24_ngan_yu_xuan_hailey2 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596902732 2023-05-19 00:53:45 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596902732 ZHAO_TIANXIANG https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596921421 2023-05-19 01:10:26 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2596921421 nh24_kristen_kwok_xi2 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597038439 2023-05-19 02:39:34 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597038439 nh24_kristen_kwok_xi2 https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597038805 2023-05-19 02:39:51 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597038805 nh24_lai_longjie https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597040175 2023-05-19 02:40:50 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597040175 nh24_belle_heng https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597048117 Long exposure to aluminium dust causes lung problems, such as coughing or abnormal chest X-rays. In acidified lakes, concentrations of aluminium is the highest, number of fish and amphibians decline due to reactions of aluminium ions with proteins. ]]> 2023-05-19 02:46:27 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597048117 nh24_lim_yong_chun_glenn https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597048739 2023-05-19 02:46:58 UTC https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597048739 nh24_klaral_jim_wan_loet https://padlet.com/nhhs/qf85aqwksxzz97h6/wish/2597048866 Some of the health effects exposure to mercury may cause include: irritation to the eyes, skin, and stomach; cough, chest pain, or difficulty breathing, insomnia, irritability, indecision, headache, weakness or exhaustion, and weight loss. Workers may be harmed from exposure to mercury.

Mercury is a concern because it is absorbed easily into the food chain. The harmful methylmercury form of mercury readily crosses biological membranes and can accumulate to harmful concentrations in the exposed organism and become increasingly concentrated up the food chain.


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