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Ankit Yadav 5 years, 7 months ago

Slaked lime is calcium hydroxide

Ankit Yadav 5 years, 7 months ago

CaO+H2O react and form Ca[OH]2

Abhay Singh 5 years, 7 months ago

Slaked lime is made by combining CaO with water so that the CaO converts to Calcium Hydroxide, Ca(OH)2. ... Lime mortar also combines with atmospheric CO2 to form back into Calcium Carbonate, CaCO3 or limestone. Ok did you understood ..... if you need further help tell me i will help you. .......

Abhay Singh 5 years, 7 months ago

Wait giving you detailed answer

ANSWER

What is a balanced chemical equation? Why should chemical equation be balanced

Posted by Nohin Sherin 5 years, 7 months ago

CBSE > Class 10 > Science

3 answers

Siri Reddy G. 5 years, 7 months ago

When the L.H.S and R. H. S side of a chemical equation is equal then we can say that it is a balanced equation

Abhinav Jaju 5 years, 7 months ago

A balanced equation shows that the no.of atoms of element or compound are equal...to verify 2 law.law of constant proportion

Anay Singh 5 years, 7 months ago

A balanced chemical reaction is a reaction in which the mass of all atoms/molecules of an element/compound ar equal on both sides. Chemical equations should be balanced to verify law of constant mass.

ANSWER

C3H8 +O2 = 3Co2 + H2o

Posted by Gauri Kushawaha 5 years, 7 months ago

CBSE > Class 10 > Science

2 answers

Abhinav Jaju 5 years, 7 months ago

C3H8+5O2------>3Co2+4H2o

Anay Singh 5 years, 7 months ago

C3H8 + 5O2 ---------> 3CO2 + 4H2O

ANSWER

What is the equation when magnesium ribbon is burnt in a jar containing nitrogen gas. When a white powder of magnesium nitrqde is obtaibed

Posted by Ria Susan Mathew 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 7 months ago

Magnesium ribbon is burnt in a jar containing nitrogen gas when a white powder of magnesium nitrite is obtained.

3Mg + N₂ → Mg₃N₂

ANSWER

How chlorophyll work in photosy

Posted by Anil Gaikwad Anil 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Helper . 5 years, 7 months ago

Chlorophyll absorbs the sunlight to take process further

ANSWER

Corect the false statment (a the wal of the atrium are thicker than the ventricle. (B the oxygen carrying blood goes into the left auricl. ( c values open on both the sid. (D xylem transports food matrial. (E the blood circulation in man is open type in man

Posted by Jyoti Yadav 5 years, 7 months ago

CBSE > Class 10 > Science

2 answers

Jyoti Yadav 5 years, 7 months ago

Helper . 5 years, 7 months ago

All are false

ANSWER

What is fossils fuel

Posted by Govindan . 5 years, 7 months ago

CBSE > Class 10 > Science

5 answers

Ajay Gill 5 years, 7 months ago

Fuel which is formed from dead and decaying matter over a very long span of geological time .

Chethan Chethan 5 years, 7 months ago

It is fuel formed from dead and decaying organismes

Aakash Nayak 5 years, 7 months ago

The fuel which is formed by dead and decay organisms, that is known as fossil fuel

Ravinder Yadav 5 years, 7 months ago

The fuel coms from fossils of dead organi

Anushka ???? 5 years, 7 months ago

Resources

ANSWER

Meaning of versatile

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

CBSE > Class 10 > Science

1 answers

Ajay Gill 5 years, 7 months ago

An object having various uses or A person having different characteristic qualities.

ANSWER

The movement of a plant part in response to a gravity is called

Posted by Rishav Singh 5 years, 7 months ago

CBSE > Class 10 > Science

2 answers

Ajay Gill 5 years, 7 months ago

Geotropism which comes under chemotropism(movement of a plant part in response to any of the external factors.

Anushka ???? 5 years, 7 months ago

Geotropism

ANSWER

What are covilent bond

Posted by Ayush Rana 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 7 months ago

Elements having very high ionisation energies are incapable of transferring electrons and elements having very low electron affinity cannot take up electrons. The atoms of such elements tend to share their electrons with the atoms of other elements or with other atoms of the same element in a way that both the atoms obtain octet configuration in their respective valence shell and thus achieve stability. Such association through sharing of electron pairs among different or same kinds is known as Covalent Bond.

ANSWER

What is dudoneum and ileum

Posted by Kartik Godara 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 7 months ago

The duodenum is the first part of the small intestine. It is located between the stomach and the middle part of the small intestine, or the jejunum. The food mixed with the acids in the stomach moves into the duodenum. Here, the food gets mixed with bile from the gall bladder and digestive juices from the pancreas.

ANSWER

Define cell respiration

Posted by Narender Yadav 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 7 months ago

Cellular respiration is a set of metabolic reactions occurring inside the cells to convert biochemical energy obtained from the food into a chemical compound called adenosine triphosphate (ATP). Metabolism refers to a set of chemical reactions carried out for maintaining the living state of the cells in an organism. These can be divided into two categories:

Catabolism – the process of breaking molecules to obtain energy.
Anabolism – the process of synthesizing all compounds required by the cells.

ANSWER

Mje samaj nhi a rha kya question karu

Posted by Ayush Mishra 5 years, 7 months ago

CBSE > Class 10 > Science

3 answers

Shova Davi 5 years, 7 months ago

to mat kar

Anay Singh 5 years, 7 months ago

Woh question Kar jisse teri phat jaye

Sandli Thakur✍?✍?(Helping Hand)? 5 years, 7 months ago

Then no need to type anything..?...

ANSWER

Give a proper defination of salt.

Posted by Aishani Vyas 5 years, 7 months ago

CBSE > Class 10 > Science

5 answers

Aishani Vyas 5 years, 7 months ago

Thanks to all??

Shova Davi 5 years, 7 months ago

Na+cl-

Ajay Gill 5 years, 7 months ago

Salt is a product of any chemical reaction between a base and an acid.It contains a cation of base and an anion of an acid.

Aakash Nayak 5 years, 7 months ago

Organic salts are obtained by sea or ocean. Acidic salts it are formed by acid. Basic salts it are formed by bases. When acid and bases react they form salts.

Anushka ???? 5 years, 7 months ago

Na+cl-

ANSWER

What is starching

Posted by Ayush Kapoor 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

Starching your clothes adds crispness and structure, providing body to cotton and linen items. It also creates a higher resistance to wrinkling and soiling. Using starch will also ease ironing. Durable synthetics can be “starched,” but should not be be treated with grocery spray starch.

ANSWER

What is the difference between word equation and chemical equation? Which one is more informative?

Posted by Helly Ferandez 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 7 months ago

A word equation describes a chemical reaction using the names of chemicals only. For instance, the word equation for respiration is:
glucose + oxygen => carbon dioxide + water
A formula equation is a visual representation of a reaction using chemical formulas. A chemical formula is an expression that states the number and types of atoms that make up any given molecule using the symbols for the elements and sub-scripted numbers.
Chemical equation uses chemical formulae instead of names and is balanced. An example of this would be methane burning in oxygen:
CH₄ + 2O₂ →CO₂+ 2H₂O

ANSWER

Plz answer, what does skeltal chemical equation represent?

Posted by Helly Ferandez 5 years, 7 months ago

CBSE > Class 10 > Science

2 answers

Shree Ram Faujdar 5 years, 7 months ago

They are unbalanced chemical equations ( ◜‿◝ )♡ Unbalanced equations ??

Yogita Ingle 5 years, 7 months ago

Skeletal equation are the equation which represents the reactants and the products involved but which is not balanced in terms of stoichiometric coefficient. In simple words, skeletal chemical equation is an unbalanced chemical equation.

The electrolytic decomposition reaction of water is,

H₂O → H₂+ O₂ → Skeletal

2H₂O → 2H₂ + O₂ → balanced

ANSWER

What is Oxidation ??

Posted by Tannu Shree Kaushik 5 years, 7 months ago

CBSE > Class 10 > Science

3 answers

Sandli Thakur✍?✍?(Helping Hand)? 5 years, 7 months ago

Oxidation is adding of oxygen and reducing hydrogen

Paritosh Suman 5 years, 7 months ago

Reduction of oxygen and addition of hydrogen

Yogesh Jangid 5 years, 7 months ago

Oxidation is the loss of electrons during a reaction by a molecule, atom or ion. Oxidation occurs when the oxidation state of a molecule, atom or ion is increased.

3Thank You

ANSWER

What are gustatory and olfactory receptors

Posted by Rushil Mittal 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 7 months ago

Gustatory receptors are present on the papillae of the tongue and are used for detecting taste. Olfactory receptors are present on the olfactory epithelium of the nasal cavity. These are used in the detection of various smells. Sensory signals are sent by these receptors to the brain by sensory nerves.

ANSWER

What do you mean by translocation

Posted by Vaidehi Bagwe 5 years, 7 months ago

CBSE > Class 10 > Science

2 answers

Ajay Gill 5 years, 7 months ago

Translocation is the process of transportation of soluble food prepared during photosynthesis from leaves to other parts of plants .

Yogita Ingle 5 years, 7 months ago

Translocation is a biological process that occurs in all plants and involves the movement of water and other soluble nutrients through the xylem and phloem from one part of the plant to another.

ANSWER

State the difference in colour of sun during sunrise/sunset and noon. Give explanation for each

Posted by Binisha Sharma 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 7 months ago

During sunrise/sunset it appears red as light has to travel a long distance from the sun through the atmosphere to reach the eye of the observer. Red light is scattered least due to its long wavelength than blue light hence it appears red to the observer. But at noon it appears white as the sun is directly over our head and light rays have to travel short distances without much scattering of any particular the colour of light. Hence it appears white.

ANSWER

I just wanted to ask what are the changes occur in CBSE 2020-21

Posted by Deepti Kajal 5 years, 7 months ago

CBSE > Class 10 > Science

2 answers

Ayush Mishra 5 years, 7 months ago

All students can do self study at home

Mansi Mishra 5 years, 7 months ago

I don't think so that any change in cbse 2020-21 All the chapter are complesary but i think paper has been late and any update are got by government.

ANSWER

Process of food making in plants

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

CBSE > Class 10 > Science

5 answers

Rekha Shida 5 years, 7 months ago

Simple photosynthesis

Abhishek Gupta 5 years, 7 months ago

Photosynthesis..

Lakshita Garg Garg 5 years, 7 months ago

Yes photosynthesis

Angel Anjali 5 years, 7 months ago

Photosynthesis They(plants) use sunlight , water and minerals from soil, carbon dioxide and clorophyll to prepare food and release oxygen

Helper . 5 years, 7 months ago

Photosynthesis

ANSWER

What do u mean by rickets

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

CBSE > Class 10 > Science

4 answers

Kartik Dhimam 5 years, 7 months ago

Ggh

Abhishek Gupta 5 years, 7 months ago

A deficiency disease that affects the young during the period of skeletal growth, is characterized especially by soft and deformed bones, and is caused by failure to assimilate and use calcium and phosphorus normally due to inadequate sunlight or vitamin D.

Angel Anjali 5 years, 7 months ago

Lack of vitamin D results in reduced absorption of calcium and phosphorus. Difficulty maintaining proper calcium and phosphorus levels in bones can cause rickets(disease).

Helper . 5 years, 7 months ago

It's a disease due to the lack of vitamin D

ANSWER

State why concave lens diverges the ray of parallel beam of light

Posted by Mayur Mhaske 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Helper . 5 years, 7 months ago

How much syllabus of physics u have completed

ANSWER

What is plant nutrition

Posted by Sunny Kakade 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Mansi Mishra 5 years, 7 months ago

Plant nutrition is the study of the chemical elements and compounds necessary for plant growth, plant metabolism and their external supply. In its absence the plant is unable to complete a normal life cycle, or that the element is part of some essential plant constituent or metabolite.

ANSWER

When lead nitrate powder is heated in a boiling tube coloured fumes of gas X is produced along with other products . What will be balanced chemical equation for the reaction involved and its types?

Posted by Nikita . 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

When lead(II) nitrate is heated, it decomposes into lead (II) oxide, nitrogen dioxide and oxygen. The balanced chemical equation for this reaction is 2 Pb(NO3)2 (s) produces 2 PbO (s) + 4NO2 + O2 (g). Since, the valency of lead is +2 it will need two nitrate radical. Lead nitrate is formed by reacting lead with nitric acid, so by displacement reaction it forms, lead nitrate ,water and nitrigon di oxide. When lead nitrate is heated, it due to thermal decomposition gives out metal oxide, oxygen and nitrogen dioxide.

ANSWER

Water helps in separation of oppositely charged ions from their ionic compound give reason

Posted by Jayanti Kumari 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 7 months ago

Because it contains ions in water which moves to the opposite electrodes when electricity is passed through the solution. this is possible in molten state since the electrostatic forces of attraction between the oppositely charged ions are overcome due to the heat.

ANSWER

What are the advantages of heating effect of electric current

Posted by Eqra Fatima 5 years, 7 months ago

CBSE > Class 10 > Science

1 answers

Mansi Mishra 5 years, 7 months ago

Advantage of using an electromagnetic energy source is that you can generate either AC or direct-current (DC) electrical power. As noted before, an AC generator uses changing magnetic fields to create AC electrical power.