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What is signfict name of human
  • 1 answers

Dude ­čśÇ 3┬áhours ago

Whom is the dp world
  • 0 answers
What are the physical properties of matter
  • 2 answers

Nepali Poems 19 hours ago

The physical properties of metals are 1 it is hard 2 it is malleable and ductile 3 it can conduct heat and electricity 4 it has high boiling and melting point

Gautam Singh Rathore 21 hours ago

Given in the book. Read it. Don't waste my time.
Define isotopes.
  • 1 answers

Gaurav Seth 22 hours ago

 Any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. As a consequence, atoms for the same isotope will have the same atomic number but a different mass number (atomic weight).


Isotopes:  Atoms of the same element with the same atomic number but different mass numbers are called isotopes.
Examples: 1H11H21H3 are the isotopes of hydrogen,6 C12 ;6C13  are isotopes of carbon.
The chemical properties of all the isotopes of an element are the same. This is due to the presence of same number of electrons.

State the law of conservation of maas
  • 1 answers

Yogita Ingle 23 hours ago

Law of conservation of mass: It states that mass can neither be created nor destroyed in a chemical reaction. During any change, physical or chemical, matter is neither created nor destroyed. However it may change from one form to another.

Compare electron proton neutron
  • 0 answers
What is electric current
  • 1 answers

Nepali Poems 19 hours ago

The current electricity which is possesed by the flow of electron through the conduting path (wire) is called electric current
Find the valency of sodium and oxygen.(atomic number of sodium-11, atomic number of oxygen-8)
  • 1 answers

Arunendra Mishra 1 day, 8 hours ago

Valency of sodium = 1 ['cause It's electronic configuration will be 2,8,1] ; Similarly, Valency of oxygen = (8-6) = 2 ['cause..!!................!!...............!! 2,6]
What happens when heat energy is supplied to solid
  • 1 answers

Indian Boy 1 day, 13 hours ago

The solid gets converted into liquid
Define 1j of work
  • 2 answers

Rajani Swain 3 hours ago

1 joule of work is called when on any object 1N of force is applied and the body is displaced by 1m

Sanjay Ojha 1 day, 6 hours ago

1 joule of work = 1N of force with 1 metre displacement
Define verrnicomoost
  • 1 answers

Abhishek Kumar 22 hours ago

Made by plants
Why does diamond sparkle?
  • 0 answers
How is bacterial cell different from onion cell ??
  • 2 answers

Arunendra Mishra 1 day, 7 hours ago

Sister, Aap sab jagah chaye rehte Ho, Huh........... @ Yogita Ingle, Anyways, Nice answer it is.......

Yogita Ingle 1 day, 19 hours ago

Bacterial cell Onion peel
1. Size of a cell is generally small (1-10 mm) 1. Size of a cell is generally large (5-100 mm).
2. Nucleus is absent (nuclear region or nucleoid is not surrounded by a nuclear membrane.) 2. Nucleus is present (nuclear  material is surrounded by a nuclear membrane).
3. ft contains a single chromosome. 3. It contains more than one ' chromosome.
4. Nucleolus is absent 4. Nucleolus is present.
5. Membrane bound cell  organelles are absent. 5. Membrane bound cell  organelles such as mitochondria, plastids, endoplasmic  eticulum, Golgi  apparatus, lysosomes, peroxisomes, etc., are present.
6. Cell division takes place by  fission or budding (no mitosis). 6. Cell division occurs by mitotic  of meiotic cell division.
Why the tissue is made up of cell
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How do you get valency no.
  • 3 answers

Nepali Poems 19 hours ago

By lossing the valance shell. If its has less than 4 i.e 1,2,3 then their valancy is same and if its valancy is more than 4 then subtract it from 8 and you will get valancy

Tejas Doifode 1 day, 19 hours ago

There are two ways to find mainly : For Metal and non-metals . FOR METALS VALENCY = NO OF VALENCE ELECTRONS. FOR NON-METALS VALENCY = 8 MINUS NO OF VALENCE ELECTON

Harsh Bothra 1 day, 20 hours ago

By splitting the atomic no. into shells K L M N. For eg. the atomic no. of hydrogen is 1 first shell can contain 2 atoms but hydrogen has one atom so it must gain an electron therefore the valency of hydrogen is 1
Clarify the law of conservation of energy
  • 1 answers

Ram Kumar 2 days, 15 hours ago

Energy is neither be created or not be destroyed it transfer one to another
State the unit of work in SI unit system.
  • 3 answers

Rajani Swain 3 hours ago

Si unit of energy is joule {kj/kg}

Kavisha Selvi 2 days, 15 hours ago

How many types of scale ? Explain each
  • 1 answers

# World Of Games /Youtube Channel 1 day, 19 hours ago

Two types.verbal scale and graphical scale
What are the example of organisms helping in nitrification
  • 2 answers

Lipsa Raiguru­čÄ╝ 2┬ádays, 15┬áhours ago

Rizobium bacteria

Dr Mistoo Sing Panchal 2 days, 17 hours ago

Ribzobus bacterium , blue green algae
valency of elnent x is 3 find its oxide
  • 1 answers

Akanksha Kumari 2 days, 13 hours ago

explain why some of the leaves may get detached from a tree if we vigorously shake it's branch.
  • 1 answers

Tejas Doifode 1 day, 19 hours ago

Because of interia of rest leaves do not move when branch move
Why prevention is Better than cure?
  • 1 answers

Mandeep Khanuja 2 days, 19 hours ago

prevention is liye better hai kyuki cure me paise ki ma chod jati hau
  • 2 answers

Dr Mistoo Sing Panchal 2 days, 22 hours ago

Just naming wheather it is in biology or chemistry

Dude ­čśÇ 2┬ádays, 22┬áhours ago

The naming of an organism
Who created simple and compound microscope? In which year was it invented? Explain
  • 1 answers

Dr Mistoo Sing Panchal 2 days, 22 hours ago

Antvon lewenhoek and robot hoek in 1665 or 1674
The flexibility in plant is due to a tissue is called
  • 1 answers

Pooja Vyas 3 days, 2 hours ago


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