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    • Posted by Prakash Bhai 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Ankita Ankita 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Mitesh Tiwari 7 years, 6 months ago

    Anything which occupie space and have some mass known as matter

    1Thank You

    Ankita Ankita 7 years, 6 months ago

    Anything that has mass and occupied space is called matter

    1Thank You

    ANSWER

    • Posted by Shikha Singh 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 3 answers

    Prabhat Emmanuel 7 years, 6 months ago

    No one is better than ncert.

    0Thank You

    Tapan Pandey 7 years, 6 months ago

    Pradeep

    0Thank You

    Sonu Sethy 7 years, 6 months ago

    U may use pradeep which is one among the best reference books

    1Thank You

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    • Posted by Yuvraj Kaswan 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Mitali Das 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Isha Rathi 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Praveen Vishwakarma 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Nancy Rajput 7 years, 6 months ago

    what we do in this question

    1Thank You

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    • Posted by Vaibhav Patidar 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Sneha Aachi 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Suraj Chaurasiya 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Priyal Bansal 7 years, 6 months ago

    Merits- It predicted the existance of some undiscovered elements He also explained the properties of some unknown elements He was the first scientist to arrange elements in a sytematic manner Demerits- Position of hydrogen could not be explained Position of isotopes He placed cobalt before nickel though cobalt has more atomic mass

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    • Posted by Altmash Irshad 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Priya Sangwan 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Anand Kumar 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Himanshu Jindal 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by ???? S.M. Sachin ???? 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 4 answers

    Shikha Singh 7 years, 6 months ago

    Under constant temperature and pressure the reactant molecules if gaseous bears a simple ratio among themselves as well as product if gaseous

    0Thank You

    Nancy Rajput 7 years, 6 months ago

    your welcome

    0Thank You

    ???? S.M. Sachin ???? 7 years, 6 months ago

    ᴛʜᴀɴᴋs ɴᴀɴᴄʏ.... ⭐⭐⭐⭐⭐

    0Thank You

    Nancy Rajput 7 years, 6 months ago

    gay lussacs law of gaseous volume state that when measured at the same temperature and pressure , the ratio of the volume of reacting gas as small whole number.

    4Thank You

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    • Posted by Palak Saini 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Kavya Sharma 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Vansh Jagga 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Sakshi Singh 4 years, 7 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Sia ? 4 years, 7 months ago

    Emission Spectra Absorption Spectra
    Produced when atoms release energy Produced when atoms absorb energy
    Comprise coloured lines in the spectrum Comprise dark lines or gaps in the spectrum
    It is helpful in figuring out the composition of a certain matter Can be used to figure out the ability of certain objects to retain heat and its absorption level
    The type of photons emitted is helpful in figuring out the kind of elements the substance is made of as each element radiates a different amount of energy and has a unique emission level The wavelengths of light absorbed is helpful in figuring out the number of substances in the sample

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    • Posted by Deeksha Gowda 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Harsh Yadav 5 years, 9 months ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Sadhvi Deshpande 7 years, 6 months ago

    It is also known as Avogadro constant

    0Thank You

    Jyotheesh Khandelwal 7 years, 6 months ago

    Means 1 mole of oxygen

    2Thank You

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    • Posted by Aaaaaa Nnnnnnn 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Tapan Pandey?? 7 years, 6 months ago

    No

    0Thank You

    Shatayu Ganvir 7 years, 6 months ago

    No, the sign shows clockwise or anticlockwise direction. It is imp to denote sign

    1Thank You

    ANSWER

    • Posted by Abdul Hamid 5 years, 9 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Mitali Das 7 years, 6 months ago

    Solid- It has a definite shape and volume. Liquid -It has a definite volume but not definite shape. Gas -It doesn't have definite shape and volume, it completely occupy the space in which it is placed .

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    • Posted by Śťāŕ. Sùhàş 04 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 0 answers
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    • Posted by Mridul Yadav 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 2 answers

    Akash Choudhary Dav Gandhinagar 7 years, 6 months ago

    Phyics ch 2

    0Thank You

    Akash Choudhary Dav Gandhinagar 7 years, 6 months ago

    Aise bhai karte h

    0Thank You

    ANSWER

    • Posted by Abhishek Agrahari 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Nancy Rajput 7 years, 6 months ago

    6.72

    0Thank You

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    • Posted by Nancy Rajput 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 8 answers

    Nancy Rajput 7 years, 6 months ago

    You by comprehensive book

    0Thank You

    Nancy Rajput 7 years, 6 months ago

    you explain me in detail

    1Thank You

    Nancy Rajput 7 years, 6 months ago

    The mole of a substance always contain the same number of entities independent of the nature of the substance taken

    0Thank You

    Nancy Rajput 7 years, 6 months ago

    normality and molality

    0Thank You

    Nancy Rajput 7 years, 6 months ago

    Which topic

    0Thank You

    Nancy Rajput 7 years, 6 months ago

    Which subject

    0Thank You

    Nancy Rajput 7 years, 6 months ago

    of first chapter

    0Thank You

    Nancy Rajput 7 years, 6 months ago

    Which type of help

    0Thank You

    ANSWER

    • Posted by Anil Choudhary 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 3 answers

    Nancy Rajput 7 years, 6 months ago

    emperical formulae Na2SH20O14

    1Thank You

    Nancy Rajput 7 years, 6 months ago

    molecular formula = Na2SO4 .10H2O

    1Thank You

    Gomathi Srinivasan 7 years, 6 months ago

    See in book this ia an example sum.......after reading that u can understand

    0Thank You

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    • Posted by Lakshay Tyagi 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Vimal Pathak 5 years, 9 months ago

    See in ncert

    0Thank You

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    • Posted by Jyotheesh Khandelwal 7 years, 6 months ago

    CBSE > Class 11 > Chemistry
    • 1 answers

    Nancy Rajput 7 years, 6 months ago

    The Molecular mass and Molar mass are two different terms and should not be confused as implying the same meaning. The Molecular mass of a substance is the sum of the atomic masses of all the atoms present in a molecule of that substance. It is expressed in atomic mass unit (u). Thus, to calculate the molecular mass, the mass of all the atoms present in it are added. For example, Molecular mass of glucose C6H12O6 is = 6 (C) + 12 (H) + 6 (O) = 180 amu. The Molar mass, on the other hand is the mass of one mole (or 6.023 X 1023) particles of that substance. The molar mass of a substance is numerically equal to the atomic mass or the molecular mass of the substance in ‘u’ and is always measured in grams. For example, the molar mass or mass of 6.023 X 1023molecules of glucose is 180g. Similarly, mass of 6.023 X 1023 atoms of sodium or molar mass of sodium is 23g, but its atomic mass is 23u.

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