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    • Posted by Sanampreet Singh 1 month ago

    ICSE & ISC > Class 09 > Chemistry
    • 2 answers

    Aarav Yadav 1 week, 6 days ago

    Mg - Magnesium

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    Sanampreet Singh 4 weeks, 2 days ago

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    • Posted by Jupiter Op2 10 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Amit Pathariyaan 2 weeks, 3 days ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    • Posted by Kinjal Rathore 10 months, 2 weeks ago

    ICSE & ISC > Class 09 > Chemistry
    • 0 answers
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    • Posted by Kinjal Rathore 10 months, 2 weeks ago

    ICSE & ISC > Class 09 > Chemistry
    • 0 answers
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    • Posted by Chinnu S 1 year, 8 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    ★ᴹᴿ°᭄༒🅐🅛🅞🅚 ༒ 2 months ago

    Mass of reactant = Mass of products Sodium carbonate + Ethanoic acid = Carbon dioxide + water + sodium ethanoate => 5.3g+6g = 2.2g+0.9g+8.2g => 11.6g = 11.6g In this case mass of reactants is equal to mass of products, Means mass can neither be created nor be destroyed in a chemical reaction. Hence above statement proved law of conservation of mass that is given by A. Levoiser .

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    • Posted by Sakshi Verma 3 years, 2 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 2 answers

    Aqsa Shireen 1 year, 7 months ago

    Two single covalent bond

    1Thank You

    Laxm Kant Ji 3 years, 2 months ago

    The rocket work on the principles of conservation of

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    • Posted by Rohit 10A 3 years, 6 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 3 answers

    Mohd Rijwan 3 years, 3 months ago

    Chapter 1 Hamare Aas Paas ke padarth

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    Basit Basit Rashid 3 years, 6 months ago

    Hloo

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    Yogita Ingle 3 years, 6 months ago

    Factors That Affect the Evaporation

    • Temperature: As the temperature increases, the rate of evaporation also increases. Temperature and rate of evaporation are proportional to each other.
    • Surface area: As the surface area increases, the rate of evaporation increases. The surface area and rate of evaporation are proportional to each other.
    • Humidity: The rate of evaporation decreases with an increase in humidity. Humidity and the rate of evaporation are inversely proportional to each other.
    • Wind speed: Increase in wind speed results in increased evaporation. Wind speed and rate of evaporation are proportional to each other.

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    • Posted by Prakhar Gupta 3 years, 8 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 2 answers

    Mahammad Rifan Rifan 3 years, 7 months ago

    What is cell

    1Thank You

    Gaurav Seth 3 years, 8 months ago

    1.No position for isotopes
    2.He separated similar elements and put together dissimilar elements
    3.Position of hydrogen is uncertain.
    4.No position for fblock elements

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    • Posted by Shravani S 3 years, 9 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Prajwal Pt Pt 3 years, 8 months ago

    Z

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    • Posted by Gurkaran Sandhu 3 years, 10 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Yogita Ingle 3 years, 10 months ago

    Those reactions in which two compounds react by an exchange of ions to form two new compounds are called double displacement reactions. In double replacement reactions, the positive ions exchange negative ion partners. A double replacement reaction is represented by the general equation.

    AB + CD → AD + CB

    Fe2O3 + 6HCl → 2FeCl3 + 3H2O

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    • Posted by Prince Saini 3 years, 11 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Gurkaran Sandhu 3 years, 10 months ago

    Chapter 2

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    • Posted by Neha Singh 4 years ago

    ICSE & ISC > Class 09 > Chemistry
    • 3 answers

    Himangi Himangi 1 year, 2 months ago

    The outer most shell is called the valence electrones

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    Akash Singh 3 years, 10 months ago

    The combining capacity of an atom of an element is called valency

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    Yogita Ingle 4 years ago

    It is the ability of an atom to gain or lose electron in order to achieve the noble gas configuration. It refers to the ability of an element to combine with other element. It is obtained by determining the number of electrons in the outermost shell (also called valence shell) of each atom of an element. For instance, sodium has 1 electron in its outermost shell and hence valency of sodium is 1.

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    • Posted by Praneeth Reddy 4 years, 2 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 2 answers

    All Things Master With Me 3 years, 6 months ago

    C10H5CLN2

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    Neha Singh 4 years ago

    Valence

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    • Posted by Satyendra Singh 4 years, 4 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Nithya Vijay 4 years, 3 months ago

    Arrangement of elements, based on their periodicity, which means repetition of properties based on certain aspect. Based on the atomic number, the modern periodic table was framed.

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    • Posted by Suparna Mukherjee 4 years, 5 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Praneeth Reddy 4 years, 2 months ago

    Chromosomes

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    • Posted by Sumateendra J 4 years, 5 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Praneeth Reddy 4 years, 2 months ago

    Cleanninness

    1Thank You

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    • Posted by Ishika Rastogi 4 years, 5 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Md Shahbaz 4 years, 6 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    All Things Master With Me 3 years, 6 months ago

    The number of covalent bonds that a particular atom can make with other atoms in forming a molecule.

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    • Posted by Sagar Kumar 4 years, 6 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    All Things Master With Me 3 years, 6 months ago

    The branch of science that deals with chemical formulas and theories.

    1Thank You

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    • Posted by Neeraj Kumar 4 years, 7 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Mayur Tanwar 4 years, 7 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Ranjay Singh 4 years, 7 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Gaurav Seth 4 years, 7 months ago

    In an earthen pot, water gets evaporated quickly through the pores. Cooling is caused by evaporation. Some heat energy is utilised during the process of evaporation. Since this energy is taken from the water itself, it leads to a lowering of temperature in the remaining amount of water.

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    • Posted by Puspanjali Kamila 4 years, 8 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Yogita Ingle 4 years, 8 months ago

    Density of water varies with temperature. It is highest at 4 oC. At low tempreature, When ice is formed, density is reduced. So At low temprature in ocean, A layer of Ice floats on water and below this layer, all aquatic species can survive. At high temeperature,  Warm water of ocean causes vast currents which circulate heat from equator to temperate zone. Hence, play role in controlling climate of whole earth.

    1Thank You

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    • Posted by Rohit Verma 4 years, 8 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Akash Singh 3 years, 10 months ago

    "Law of consevation of matter" Is the law required of the chemical equation

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    • Posted by Ujjwal Kumar 4 years, 8 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Madhu Sahu 4 years, 9 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Sarvesh Raghuwanshi 4 years, 9 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 0 answers
    ANSWER

    • Posted by Vaishali Patel 4 years, 10 months ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Saireddy Vagdevi Vagdevi 4 years, 6 months ago

    Due to diffusion of gases

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    • Posted by Semanti Bhowmik 5 years ago

    ICSE & ISC > Class 09 > Chemistry
    • 2 answers

    Saireddy Vagdevi Vagdevi 4 years, 6 months ago

    Metalloids contain both metals and non metals

    0Thank You

    Gaurav Seth 5 years ago

    The elements which display properties of both metals and non-metals are classified as metalloids. In the Periodic Table, they separate metals from the non-metals. For eg. Silicon, Arsenic etc.

    1Thank You

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    • Posted by Zubaida Khatoon 5 years, 1 month ago

    ICSE & ISC > Class 09 > Chemistry
    • 1 answers

    Vishal Saxena 4 years, 11 months ago

    Burning of any substance in presence of oxygen is known as combustion

    1Thank You

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