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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.

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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

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1 example of compound is water
Water= 2 Hydrogen oxygen ( H₂O)
Water is a compound

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Hydrogen Peroxide.
It is made up of 2 hydrogen and 2 oxygen. It is a chemical compound.

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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

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Salt it is made out of the elements sodium and chlorine. It is use as a food preservative

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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).

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My compound is water bottle. It is made up of calcium, fluoride and chloride.

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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

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Compound:Ammonia as it consists of 1 nitrogen & 3 hydrogen that  is chemically combined.

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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).

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The properties are transparent and also water resistant

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Rigid and heat resistance

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A compound cannot be separated into its constituent elements easily

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The constituent elements of a compound are always chemically combined in a fixed proportion by mass

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Compound cannot be separated to its constituent elements easily

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A compound cannot be separated into its constituent elements easily

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A compound cannot be separated into its constituent elements easily

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The elements of a compound are always chemically combined in fixed proportion by mass

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Compounds do not have the same properties as their constituent element

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Compounds do not have the same properties as their constituent element

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A mixture consists of elements or compounds that are not chemically combined.

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Sodium chloride
Salt is made up of Sodium,Chlorine
Salt is used for foods

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Glass is made out of sand , limestone and other compounds , it comprises element such as silicon , calcium , carbon and oxygen .

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The elements are hydrogen and oxygen.
It has a specific gravity

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2.  It’s made up of 1 nitrogen and 3 hydrogen chemically combined.
3. The compound cannot be separated into its constituent elements easily.

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Consists of 2 or more elements that see chemically combined together

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2.It so made up of 1 sodium and 1 chlorine chemically combined
3.A compound cannot be separated into its constituent easily

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Sodium Chloride is made up of the elements sodium and chlorine

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-Hydrogen Peroxide

Elements that make up the compound :
Hydrogen2, Oxygen2

A property of Hydrogen Peroxide :
Very light blue colour

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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

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2.This compound is 1 carbon, 1   hydrogen and 1 oxygen chemically combined.
3.

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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

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Compound: Carbon dioxide( Carbon and Oxygen)

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Compound: Carbon dioxide( Carbon and Oxygen)

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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.

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1 carbon and 2 oxygen chemically combined .
Carbon dioxide is a gas.

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Sodium hydrogencarbonate is commonly known as baking soda

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Plastics

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Co2: 1 carbon and 2 oxygen.

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Sodium hydrogencarbonate

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Carbon and oxygen
1Carbon 2 oxygen

Property gas

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Sodium, hydrogen, carbon and oxygen

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It is used in baking and as an antacid to reduce unpleasant effects when the stomach produces too much acid

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Its made out of carbon, hydrogen and oxygen

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1 oxygen & 2 hydrogen

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Very light

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People drink it to replenish thirst, its healthier than carbonated drinks

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Sodium, hydrogen, carbon and oxygen are chemically combined to form sodium hydrogencarbonate

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it is made out of carbon, hydrogen and oxygen.

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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