https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965 Made with magic en-us 2021-03-31 04:37:53 UTC 2025-10-11 12:39:52 UTC hello@padlet.com tang_wai_yin2 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1370581522 2. hydrogen and oxygen
3. Water has different properties as sodium and chlorine. It is a colourless liquid but hydrogen and oxygen are gases at room temperature 
OR
The elements in water are always chemically combined in a fixed proportion by mass. 
OR
Water cannot be separated into hydrogen and oxygen easily by physical methods.  

Look for a partner and work in pairs.

1) Name a compound.

2) Name the element that make up the compound.

3) Describe one property of the compound.

An example is shown. You cannot use the same example shown.

]]> 2021-03-31 04:43:04 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1370581522 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389627865 The compound is steel and is very strong and it’s elements in it is iron(Fe) and carbon(C) containing less than 2% carbon and 1% manganese(Mn) and small amounts of silicon(Si), phosphorus, sulphur(S) and oxygen(O).


]]> 2021-04-07 01:32:46 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389627865 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389639133 1, sand is mmy compound

2, Silica sand, also known as quartz sand, white sand, or industrial sand, is made up of two main elements: silica and oxygen. Specifically, silica sandis made up of silicon dioxide (SiO2). The most common form of SiO2 is quartz – a chemically inert and relatively hard mineral.

3, it has minerals and it is made up of little tiny particles ]]> 2021-04-07 01:37:16 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389639133 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389640345 1 example of compound is water
Water= 2 Hydrogen oxygen ( H₂O)
Water is a compound]]> 2021-04-07 01:37:45 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389640345 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389640980 Hydrogen Peroxide.
It is made up of 2 hydrogen and 2 oxygen. It is a chemical compound.]]> 2021-04-07 01:38:01 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389640980 tanenxuen https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389642981 2. Baking Soda is made up of element :Sodium 1, Hydrogen 1, Carbon 1 and Oxygen 3.
3. Baking soda is an alkaline compound that, when combined with an acid, will produce carbon. dioxide gas. The small bubbles of carbon dioxide gas become trapped in batter, causing it to inflate, or rise. Common acids used to cause this reaction include vinegar, lemon juice, buttermilk, yogurt, and cream of tartar]]> 2021-04-07 01:38:50 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389642981 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389643507 Exampless of compounds include table salt or sodium chloride (NaCl, an ionic compound), sucrose (a molecule), nitrogen gas (N₂, a covalent molecule), a sample of copper (intermetallic), and water (H₂O, a covalent molecule).]]> 2021-04-07 01:39:02 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389643507 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389643674 Salt it is made out of the elements sodium and chlorine. It is use as a food preservative

]]> 2021-04-07 01:39:06 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389643674 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389649310 My compound is water bottle. It is made up of calcium, fluoride and chloride. ]]> 2021-04-07 01:41:24 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389649310 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389651522 1)marble is a compound
2)plastics is a compound that is made up of elements which is carbon,hydrogen and oxygen
3)Compound do not have the same properties as their constituent elements]]> 2021-04-07 01:42:18 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389651522 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389652436 Compound:Ammonia as it consists of 1 nitrogen & 3 hydrogen that  is chemically combined.


]]> 2021-04-07 01:42:40 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1389652436 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1391748642 The properties are transparent and also water resistant]]> 2021-04-07 14:44:37 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1391748642 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394131380 Rigid and heat resistance ]]> 2021-04-08 02:55:00 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394131380 Yoo_eon_mi https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394136273 A compound cannot be separated into its constituent elements easily]]> 2021-04-08 02:57:09 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394136273 muhammad_danial_adreen_muhammad https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394138154 Compound cannot be separated to its constituent elements easily]]> 2021-04-08 02:57:59 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394138154 chan_yi_en_ian https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394138601 The constituent elements of a compound are always chemically combined in a fixed proportion by mass]]> 2021-04-08 02:58:11 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394138601 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394138894 .]]> 2021-04-08 02:58:20 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394138894 emre_norman https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394141123 The elements of a compound are always chemically combined in fixed proportion by mass]]> 2021-04-08 02:59:28 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394141123 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394141496 2021-04-08 02:59:39 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394141496 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394141909 2021-04-08 02:59:51 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394141909 Tan_En_Xuen https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394142136 A mixture consists of elements or compounds that are not chemically combined.]]> 2021-04-08 02:59:58 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1394142136 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405291333 Sodium chloride 
Salt is made up of Sodium,Chlorine
Salt is used for foods ]]> 2021-04-12 01:04:59 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405291333 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405291979 Glass is made out of sand , limestone and other compounds , it comprises element such as silicon , calcium , carbon and oxygen .]]> 2021-04-12 01:05:17 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405291979 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405300665 Consists of 2 or more elements that see chemically combined together ]]> 2021-04-12 01:09:08 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405300665 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405300722 2.  It’s made up of 1 nitrogen and 3 hydrogen chemically combined.
3. The compound cannot be separated into its constituent elements easily.]]> 2021-04-12 01:09:10 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405300722 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405301172 2.It so made up of 1 sodium and 1 chlorine chemically combined 
3.A compound cannot be separated into its constituent easily

]]> 2021-04-12 01:09:22 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405301172 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405301303 The elements are hydrogen and oxygen.
It has a specific gravity ]]> 2021-04-12 01:09:26 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405301303 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405305715 Sodium Chloride is made up of the elements sodium and chlorine]]> 2021-04-12 01:11:22 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405305715 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405308890 -Hydrogen Peroxide

Elements that make up the compound :
Hydrogen2, Oxygen2

A property of Hydrogen Peroxide :
Very light blue colour]]> 2021-04-12 01:12:54 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405308890 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405309615 The elements of a compound are always chemically combined in a fixed proportion by mass. Sodium chloride is always made up of 1 sodium and 1 chlorine (NaCl) chemically combined]]> 2021-04-12 01:13:16 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405309615 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405310087 2.This compound is 1 carbon, 1   hydrogen and 1 oxygen chemically combined. 
3.
 ]]> 2021-04-12 01:13:30 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405310087 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405311331 A compound always has the same elements in the same proportions. For example, carbon dioxide”CO2”always has two atoms of oxygen for each atom of carbon, and water always has two atoms of hydrogen for each atom of oxygen. A compound always has the same composition throughout.]]> 2021-04-12 01:14:02 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405311331 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405311952  1 carbon and 2 oxygen chemically combined . 
Carbon dioxide is a gas.

]]> 2021-04-12 01:14:20 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405311952 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405312107 Sodium chloride is made up of sodium and chlorine it is a solid at room temperature and has a white colour it is edible unlike chlorine it is a gas]]> 2021-04-12 01:14:24 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405312107 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405321451 Sodium hydrogencarbonate is commonly known as baking soda

]]> 2021-04-12 01:16:07 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405321451 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405324154 2021-04-12 01:16:41 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405324154 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405326677 Co2: 1 carbon and 2 oxygen.

]]> 2021-04-12 01:17:49 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405326677 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405326977 Carbon and oxygen
1Carbon 2 oxygen


 Property gas

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]]> 2021-04-12 01:17:59 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405326977 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405327139 Sodium hydrogencarbonate]]> 2021-04-12 01:18:04 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405327139 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405327463 2021-04-12 01:18:13 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405327463 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405327545 Plastics]]> 2021-04-12 01:18:16 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405327545 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405328661 Sodium, hydrogen, carbon and oxygen]]> 2021-04-12 01:18:48 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405328661 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405329157 It is used in baking and as an antacid to reduce unpleasant effects when the stomach produces too much acid]]> 2021-04-12 01:19:02 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405329157 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405333374 Its made out of carbon, hydrogen and oxygen]]> 2021-04-12 01:20:46 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405333374 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405334073 1 oxygen & 2 hydrogen]]> 2021-04-12 01:21:07 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405334073 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405334926 People drink it to replenish thirst, its healthier than carbonated drinks]]> 2021-04-12 01:21:32 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405334926 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405337683 Sodium, hydrogen, carbon and oxygen are chemically combined to form sodium hydrogencarbonate]]> 2021-04-12 01:22:42 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405337683 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405340509 Very light]]> 2021-04-12 01:23:55 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405340509 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405343777 it is made out of carbon, hydrogen and oxygen.]]> 2021-04-12 01:25:23 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405343777 https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405535625 It’s made up of the elements: 1 nitrogen and 1 hydrogen chemically combined together. 
Property of compound: its a colour less gas with a characteristically pungent smell]]> 2021-04-12 02:49:35 UTC https://padlet.com/tang_wai_yin2/b9s2t6jhlkkgrvej1641465965/wish/1405535625