National Science Olympiad Forum By SOF Olympiad Trainer - Page 832

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Subject :NSO    Class : Class 6

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Class : Class 8
caco3

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Class : Class 6
the answer is - calcium carbonate

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Subject :NSO    Class : Class 7

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Class : Class 7
pH is a scale used to specify the acidity or basicity of an aqueous solution

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Class : Class 10
pH means power of hydrogen/ povouir hydrogen, means concentration of hydrogen ions in an aqueous solution.So it is used to identify whether a substance is acid,base or neutral.

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Class : Class 8
pavour hydrogine

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Class : Class 8
It is the negative logarithm of H+ ions

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Class : Class 9
no full form available

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Class : Class 7
The full form is povouir hydrogene

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Class : Class 8
pH means power of hydrogen

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Class : Class 9
potense of hydrogen or power of hydrogen is basically a test used to determine strengh of a acid or a base.

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Subject :NSO    Class : Class 7

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Class : Class 8
Alkalis are water-soluble bases. They are spelt 'alkalis and not alkaleis'.

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Class : Class 8
bases that are completely soluble in water

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Class : Class 8
Alkalies are the bases which are soluble in water

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Class : Class 8
Alkalies are the bases that are soluble in water.Some bases are not soluble in water they are not called alkalies

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Subject :NSO    Class : Class 7

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Class : Class 7
so i hope you know what a mixture is. well a mixture a mixture is two or more elements or compounds mixed together but not chemically combined are called mixtures . they can be easily seperated. example: air is mixture of gases like nitrogen oxygen etc. now a heterogenious mixture is a mixture that composes of components that are not uniform and have totally different properties. i hope this answer helps.

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Class : Class 8
Mixtures which are not uniform

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Class : Class 10
Mixture whose components are not uniform means having different properties

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Subject :NSO    Class : Class 7

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Class : Class 9
mixtures in which the properties of the elements are retained

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Subject :NSO    Class : Class 7

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Class : Class 7
A mixture which has uniform composition and properties throughout. Ex:air

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Class : Class 8
A Homogenous Mixture contains a uniform composition type of a mixture. Some examples, are air.

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Class : Class 8
A mixture which is uniform is called homogenous mixture

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Subject :NSO    Class : Class 2

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Class : Class 4
milkyway

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Class : Class 4
Milky Way ( Aakash Ganga)

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Class : Class 4
milkyway

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
WHAT NONSENSE???

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Subject :NSO    Class : Class 5

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Class : Class 5
a substance that increases the rate of reaction in a matter

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