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  • 3 answers

Satyam Kumar 7 years, 2 months ago

Na2 atomic mass is 23u O atomic mass is 16u Hence,the molar mass is 23×2+16=62u

Amit Singh 7 years, 2 months ago

23×2+1×16 =62u

Pulkit Kashyap 7 years, 2 months ago

23 ×2 +1 46 + 1 47u
  • 2 answers

Sangita???? Ankita 7 years, 2 months ago

2+

Pulkit Kashyap 7 years, 2 months ago

Valency - 2+
  • 1 answers

Gaurav Seth 7 years, 2 months ago

Cation

  1. It is positively charged. e.g., Na+.
  2. It is formed from metal atoms.
  3. On passing electric current, it moves towards cathode.
  4. It is smaller in size than its parent atom.
    Anion
  5. It is negatively charged. e.g., Cl-.
  6. It is formed from non metal atoms.
  7. On passing electric current, it moves towards anode.
  8. It is larger in size than its parent atom.
  • 2 answers

Amit Singh 7 years, 2 months ago

We cannot ignore atom because our entire world is made up of atom . We may not able to see them but they are there and constantly affecting whatever we do

Nikki Singhal 7 years, 2 months ago

No u cant
  • 1 answers

Satyam Kumar 7 years, 2 months ago

Epithelial tissue are those tissue which protect our body means simply they are also known as protective tissue This simply separates our internal organs from external environment most of the cavity and the organ that are present in our body are covered by epithelial tissue There are three types of epithelium tissue mainly Simple squamous epithelial tissue Columnar epithelial tissue Cubicle epithelium tissue they play a very important role in our body that is why they are special
  • 1 answers

Pradeep . 7 years, 2 months ago

no
  • 1 answers

Rishabh Yadav 7 years, 2 months ago

Because it pollutes soill as well as water.
  • 1 answers

.Yogitha . Dhanaji 7 years, 2 months ago

1908 erivin popper and karl landsteiner
  • 1 answers

Dilip Kumar 7 years, 2 months ago

The binomial nomenclature makes for a uniform way of identification of the vast diversity of life around us.
  • 3 answers

Riyaz Malik 7 years, 2 months ago

Slow blood circulation in the whole body.

Adarsh Dukare 7 years, 2 months ago

slow blood circulation

Prabhakar Sah 7 years, 2 months ago

Slow blooding
  • 2 answers

Akanksha Kumari? 7 years, 2 months ago

The amount of sound energy passing each second through unit area is called intensity of sound.

Yogita Ingle 7 years, 2 months ago

Intensity : The amount of sound energy passing each second through unit area is called the Intensity of Sound. The SI unit of sound intensity is watt per square meter (W/m2). The standard text is the measurement of sound intensity of the noise in the air at the location of the listener as a sound energy quantity.

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  • 1 answers

Yogita Ingle 7 years, 2 months ago

Intensity: The sound intensity (acoustic intensity) is defined as the sound power per unit area. The S.I. unit of intensity: Watt /m2

Loudness: The loudness of sound is defined as the degree of sensation of sound produced in the ear. Loudness is actually the perception of sound by the listener.

  • 1 answers

Meghna Thapar 6 years, 1 month ago

The value or quality of honey depends upon the pasturage, or the flowers available to the bees for nectar and pollen collection. The pasturage means the flowers available to the bees for nectar and pollen collection. In addition to adequate quantity of pasturage, the kinds of flowers available will determine the taste of the honey.

Pasturage of honey bee includes a variety of flowering plants such as Mango, Cotton, Litchi, Shishame, Apple, Cashew, Coffee, Rubber plant, Sunflower, Neem, etc.

  • 1 answers

Dilip Kumar 7 years, 2 months ago

Newton third law means-Every Action and Reaction are always equal and and opposite.
  • 2 answers

Yogita Ingle 7 years, 2 months ago

Monocots Dicots
1. Monocots are mostly herbaceous 1. Dicots are both herbaceous and woody.
2.The seed contains one cotyledon. 2.The seed contains two cotyledons.
3.Contains fibrous root system. 3.Contains tap root system.
4. Leaves in monocots show parallel venation. 4. leaves in dicots show reticulated venation.
e.g. Maize e.g. Pea




3.

Praful Kayi 7 years, 2 months ago

Monocot :seeds can't be divided into two equal halves Dicot:seeds can be divided into two equal halves
  • 1 answers

Akanksha Kumari? 7 years, 2 months ago

Carl woese further divided Kingdom Monera and protista into archaebacteria and eubacteria.
  • 2 answers

Adarsh Dukare 7 years, 2 months ago

0°celcius

Yogita Ingle 7 years, 2 months ago

Melting point of a solid is defined as the temperature at which a solid changes into a liquid. Melting point of a solid indicates the strength of the force of attraction between the particles of the solid. On heating a solid, its molecules absorb energy in the form of heat and their kinetic energy increases.
For ice, the melting point is 0°C or 273K. The chemical element with the highest melting point is tungsten (3410°C), which is used for making filaments in light bulbs.

  • 2 answers

Yogita Ingle 7 years, 2 months ago

The important characteristics of particles of matter are the following:

  1. The particles of matter are very, very small.
  2. The particles of matter have space between them.
  3. The particles of matter are constantly moving.
  4. The particles of matter attract each other.

Aishwarya Nagrani 5 years, 11 months ago

They dont have space between them , there particle are continuosly moving , they attract each other
  • 1 answers

Ishika Mohan 7 years, 2 months ago

add a minus sign in F12.....

  • 6 answers

Adarsh Dukare 7 years, 2 months ago

joule

Akanksha Kumari? 7 years, 2 months ago

Sorry it's right answer is joule . I took it wrong

Mohd Ali 7 years, 2 months ago

KWH

Ayush Mishra Baadshah 7 years, 2 months ago

Joule

Akanksha Kumari? 7 years, 2 months ago

Watt

Saurabh Kumar 7 years, 2 months ago

I don't know
  • 1 answers

Yogita Ingle 7 years, 2 months ago

Disadvantages of  reverberation
1· Needs measurement averaged over many stirrer positions
2· Not in many current standards.
3· No simple method to compare emissions/immunity measurements with other techniques.

  • 1 answers

Satyam Kumar 7 years, 2 months ago

The symbol of sulphite is SO3 And the valency is -2
  • 1 answers

Yogita Ingle 7 years, 2 months ago

Speed: Distance travelled by the object in unit time. The SI unit of speed is metre per second. This is represented by the symbol m s–1 or m/s. Speed is a scalar quantity; it only has direction.
Velocity: Velocity is the speed of an object moving in a definite direction. The SI unit of velocity is also metre per second. Velocity is a vector quantity; it has both magnitude and direction.

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  • 2 answers

Satyam Kumar 7 years, 2 months ago

Acceleration is the rate of of change of velocity per unit time ,it is represented by metre per second square, it is a scalar quantity which having direction and magnitude Acceleration is equal to final velocity minus initial velocity divided by time taken

Itika Singhal 7 years, 2 months ago

Acceleration is defined as the rate of change in velocity. Acceleration = final velocity - initial velocity ÷ time (a = v - u ÷ t) acceleration happens in non uniform motion
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