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    • Posted by Rohan Sanjay 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 2 answers

    A.T'S Gaming 5 years, 7 months ago

    Tq

    1Thank You

    Yogita Ingle 5 years, 7 months ago

    Phenolphthalein is pink in an alkaline solution but turns colourless in an acidic solution.

    2Thank You

    ANSWER

    • Posted by Barsha Saikia 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 3 answers

    Sukhman Janjua 5 years, 7 months ago

    In exothermic reaction heat is released along with products where as ln endothermic reaction heat is absorbed

    0Thank You

    Yogita Ingle 5 years, 7 months ago

    Exothermic Reaction: A chemical reaction in which heat is given out is known as exothermic reaction. For example
    C(g) + O2(g) → CO2(g) + Heat Energy
    NaOH(aq) + HCl (aq) → NaCl(aq) + H2O(l) + Energy

    Endothermic Reaction: A chemical reaction in which heat energy is absorbed is known as endothermic reaction. For example
    N2(g) + O2(g) → 2 NO
    C(s) + H2O → CO(g) + H2(g)

    1Thank You

    Yogesh Thakur 5 years, 7 months ago

    In exothermic heat is released and in endothermic heat is absorbed

    0Thank You

    ANSWER

    • Posted by Ashish Panwar 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Meghna Thapar 5 years, 6 months ago

    At the cellular level the muscle cells move by changing their shape so that they shorten. Muscle cells have special proteins that change both their shape and their

    arrangement in the cell in response to nervous electrical impulses. When this happens, new arrangements of these proteins give the muscle cells a shorter form.

    When the sense organ in our body is affected, it sends the message to the brain in the form of electrical impulses through the sensory neurons. The brain analyses this message and decides the action to be taken. The brain then sends out instructions to the muscles of the concerned body parts through motor nerves and the concerned body part acts accordingly.

     

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    • Posted by Anjali Anjali 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Yogita Ingle 5 years, 7 months ago

    Dominant trait: The trait which can express its effect over contrasting trait is called a dominant trait. It is expressed even in the presence of one copy of an allele for a particular character in the gene, i.e., it is expressed in the heterozygous condition.

    Example: Yy represents dominant trait for yellow seed colour. Seed is yellow even when single copy is dominant allele Y is present.

    0Thank You

    Yogesh Thakur 5 years, 7 months ago

    These arw the triads which were introduced by dominareds scientist which tells that the average...

    0Thank You

    ANSWER

    • Posted by Harpreet Arora 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Thrima Irani 5 years, 7 months ago

    Go to the science section of mycbseguide and click on CBSE Syllabus

    0Thank You

    ANSWER

    • Posted by Jeet Khare 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Yogesh Thakur 5 years, 7 months ago

    Voltmeter shows the potential difference not controls

    0Thank You

    Yogesh Thakur 5 years, 7 months ago

    Voltage is right one

    0Thank You

    Bushra Daudi 5 years, 7 months ago

    Electric cell

    0Thank You

    Vidhi Garg 5 years, 7 months ago

    Voltmeter

    1Thank You

    Harpreet Arora 5 years, 7 months ago

    Ammeter

    0Thank You

    ANSWER

    • Posted by Sowndaryaa Lakshmi V 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Anjali Anjali 5 years, 7 months ago

    The loss of water in the form of water vapour is called transpiration

    0Thank You

    ANSWER

    • Posted by Nitin Chaudhary 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Nitin Chaudhary 5 years, 7 months ago

    Isme 1st step me hm agr 96000c/3600s krte h to 26.67 nhi aayega or issi mistake se saara answer changed h

    0Thank You

    Madhura Dighikar 5 years, 7 months ago

    I =Q/T =96000c/1h =96000c/60×60s =26.67A By ohms law R = V/I = 50V/26.67A = 1.87 ohm Time = 1 hour = 3600 sec Heat = I×I×R×T =26.67×26.67×1.87×3600 =4788397J =4.78×10^-6J or = 4.8×10^-6 Joules

    2Thank You

    ANSWER

    • Posted by Aditya Upadhyay 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Sukhman Janjua 5 years, 7 months ago

    Magnesium ribbon is cleaned before burning because there is a layer of magnesium oxide on magnesium ribbon so that,s why we clean magnesium ribbon before burning to remove that mg oxide layer from mg ribbon

    0Thank You

    Suryansh Singh 5 years, 7 months ago

    To remove the layer of MgO and magnesium Carbonate sometimes

    0Thank You

    Yogesh Thakur 5 years, 7 months ago

    To remove the layer

    0Thank You

    Aditya Upadhyay 5 years, 7 months ago

    Thank you @Harpreet Arora

    1Thank You

    Harpreet Arora 5 years, 7 months ago

    Because to pervent the layer of magnesium oxide which is tormed

    1Thank You

    ANSWER

    • Posted by Sukhwinder Kaur 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Suryansh Singh 5 years, 7 months ago

    Absorbtion of Co2 from. Plan

    0Thank You

    ANSWER

    • Posted by Aryan Sing 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Sia ? 4 years, 7 months ago

    -ide is used for non-metal compounds generally. For example, Chlorine forms a chloride ion, so NaCl is Sodium Chloride. -ate and -ite are commonly used for polyatomic ions of Oxygen. -ate is used for the ion that has the largest number of Oxygen atoms.

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    • Posted by Seema Mishra 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 5 years, 7 months ago

    Soap molecules have two parts, on is polar head which is hydrophilic (water soluble) carboxylate group and other is non polar tail, which is hydrophobic (oil soluble) hydrocarbon tail. In water, several soap molecules aggregate to form micelles in which hydrocarbon tails are in the interior of cluster and polar heads are at the surface of clusters. The dirt in cloth is due to presence of dust particles in fat or grease which stick to the cloth. In the soap solution, micelles are formed around oil droplets. The hydrophobic part of soap is in the oil droplet and hydrophilic part projects outside like bristiles. The oil drops and micelle are then pulled in water due to hand rubbing or agitation and are washed away.

    1Thank You

    ANSWER

    • Posted by ? Ishika ?? 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 5 years, 7 months ago

    When they come into our houses, they pass through a circuit called a Fuse. Whenever there is a high voltage, voltage fluctuation, overloading, short circuit the fuse melts and prevents the high voltage reaching the electric appliance. This saves the electrical gadget.

    1Thank You

    ANSWER

    • Posted by ? Ishika ?? 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 3 answers

    ? Ishika ?? 5 years, 7 months ago

    Thanks you so much yogita ingle....??

    1Thank You

    Suryansh Singh 5 years, 7 months ago

    Perfect answered

    1Thank You

    Yogita Ingle 5 years, 7 months ago

    Let there be 3 resistance R1, R2, and R3 connected in series. A battery of V volts has been applied to the ends of this series combination. Now suppose the potential difference across the resistance R1 is V1, R2 is V2 and R3 is V3.

    ∴ V= V1+V2+V3 ...(1)

    Now, suppose the total resistance of the combination be R, and the current flowing through the whole circuit be I.
    So, applying Ohm's law to the whole circuit, we get :

    V/I = R or V=IR ...(2)

    ∵ The same current is flowing through all three resistances, so by applying Ohm's law to three of them seperately, we will get
     V1 = IR1                          
    V2= IR2 and
    V3= IR3                    ... (3)

     Now, putting (3) and (2) in equation (1), we get

    IR = IR1 + IR2 + IR3
    i.e IR = I ( R1 + R2 + R3 )
    ⇒ R = R1 + R2 + R3

    2Thank You

    ANSWER

    • Posted by ? Ishika ?? 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Vineet Jethani 5 years, 7 months ago

    I=Q/T

    1Thank You

    ANSWER

    • Posted by ? Ishika ?? 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 5 years, 7 months ago

    When 1 Joule of work is done to move a charge of amount 1 Coulomb from one place to another, then it is said that the potential difference between the two points is 1 Volt (V).

    1Thank You

    ANSWER

    • Posted by Aaditya Rawat 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Vidhi Garg 5 years, 7 months ago

    It refer to voltage

    1Thank You

    ? Ishika ?? 5 years, 7 months ago

    Electric potential is defined as work done in moving a unit positive charge to a point in a circuit.

    1Thank You

    ANSWER

    • Posted by Dattatray Shinde 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Anjali Anjali 5 years, 7 months ago

    Acid and base reacts to form salt and water

    1Thank You

    ? Ishika ?? 5 years, 7 months ago

    In chemistry, neutrilization is a chemical reaction in which an acid and a base react quantitatively with each other.

    1Thank You

    ANSWER

    • Posted by Raman Kumar 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 5 years, 7 months ago

    Balanced chemical equation

    When the total number of atoms on the reactant side and the product side is equal, the equation is called a balanced equation.

    Need for balancing a chemical equation

    A chemical equation needs to be balanced because a chemical reaction is just a rearrangement of atoms.

    Atoms themselves are neither created nor destroyed during the course of a chemical reaction.

    The chemical equation needs to be balanced to follow the law of conservation of mass

    0Thank You

    ANSWER

    • Posted by Sneha Singh 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Vivek Yadav 5 years, 7 months ago

    Right because it decrease the temperature and make it cool.

    1Thank You

    ANSWER

    • Posted by Anushka ???? 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Anushka ???? 5 years, 7 months ago

    Hand

    0Thank You

    Lucifer??Morningstar?? . 5 years, 7 months ago

    I don't know

    1Thank You

    ANSWER

    • Posted by Ravi Shankar Dwivedi 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 5 answers

    Vivek Yadav 5 years, 7 months ago

    The numbers of atom in reactant and products sodes are equal then we say that it is balance equaty

    0Thank You

    Sneha Singh 5 years, 7 months ago

    It is type of equation in which number of atoms of reactants and product are same

    1Thank You

    Rohit Kaushik 5 years, 7 months ago

    the number of atoms in reactent side and product side are equal is called balance equation

    1Thank You

    Keshav Jaiswal 5 years, 7 months ago

    When the atom of reactant is equal to atom of product then that equation is called balanced equation.

    1Thank You

    Suryansh Singh 5 years, 7 months ago

    A balanced chemical equation is a type of equation in which the number of atoms of each element is same in both the sides of the reaction. Eg- Mg +O2 --> 2MgO

    1Thank You

    ANSWER

    • Posted by Mr Khan 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 0 answers
    ANSWER

    • Posted by Vicky Singh 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Mansi Mishra 5 years, 7 months ago

    The Propagation of sound. Sound is a sequence of waves of pressure which propagates through compressible media such as air or water. (Sound can propagate through solids as well, but there are additional modes of propagation). During their propagation, waves can be reflected, refracted, or attentuated by the medium.

    0Thank You

    ANSWER

    • Posted by Ajay Gill 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Bharat Dashora 5 years, 7 months ago

    because adding water which is an neutral is doing oxidation

    1Thank You

    ANSWER

    • Posted by Hema Hema 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Mansi Mishra 5 years, 7 months ago

    Atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element's isotopes. The mass number is a count of the total number of protons and neutrons in an atom's nucleus.

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    • Posted by Seema Mishra 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Drip ? Drop? 5 years, 7 months ago

    The breakdown of fats globles in the ordinal into Tiny droplets which provide the larger area on which enzyme pancreatic lypas help to broke the fat into tiny droplets.bas...

    1Thank You

    ANSWER

    • Posted by Twinkle Aggarwal 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Mansi Mishra 5 years, 7 months ago

    Amoeba is a unicellular animal, so it doesn't have a mouth for ingestion of food. Amoeba ingests the food by encircling it by forming pseudopodia. ... The food digested by digestive enzymes is then absorbed in the cytoplasm by the process of diffusion. While the undigested food remains in the food vacuole.

    2Thank You

    ANSWER

    • Posted by Ayushi Singh 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Lc Choudhary 5 years, 7 months ago

    Good

    1Thank You

    ANSWER

    • Posted by D Ivya Goley 5 years, 7 months ago

    CBSE > Class 10 > Science
    • 2 answers

    Ajay Gill 5 years, 7 months ago

    It is the phenomenon of melting under pressure and refreezing when pressure is reduced. Eg: if a thin wire is tied around an ice block and attached to a heavy weight slowly and gradually the wire will pass through the entire block .

    1Thank You

    Jeslin Anna Jacob? 5 years, 7 months ago

    a phenomenon in which the freezing point of water is lowered by the application of pressure; the melting and refreezing of ice, at constant temperature, caused by varying the pressure.

    2Thank You

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