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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

In a double displacement reaction, atoms from two different compounds switch places. The reactants are two compounds and the products are two different compounds. Double displacement reactions can also be called double replacement reactions.

Fe₂O₃ + 6HCl → 2FeCl₃ + 3H₂O

Many double displacement reactions occur between ionic compounds that are dissolved in water.

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Find the position , size and nature of the image formed by a spherical mirror from the following data. f= -12cm u= -36cm Ho= 2cm

Posted by Aishani Vyas 5 years, 6 months ago

CBSE > Class 10 > Science

0 answers

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How is the NaOh obtained?

Posted by Suryansh Singh 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Suryansh Singh 5 years, 6 months ago

Thanks...

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Pankaj Malik 5 years, 6 months ago

Sodium hydroxide is produced (along with chlorine and hydrogen) via the chloralkali process. This involves the electrolysis of an aqueous solution of sodium chloride. The sodium hydroxide builds up at the cathode, where water is reduced to hydrogen gas and hydroxide ion: 2Na+ + 2H2O + 2e− → H2 + 2NaOH.

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How will you prove nm =c/v

Posted by Prabakaran Kanagaraj 5 years, 6 months ago

CBSE > Class 10 > Science

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What is spectrum??

Posted by Mahi..... ♾ 5 years, 6 months ago

CBSE > Class 10 > Science

3 answers

Mahi....... . 5 years, 6 months ago

Sorry vo galti se aa gya (?)

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Mahi....... . 5 years, 6 months ago

Thanks ???

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Pankaj Malik 5 years, 6 months ago

A spectrum is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum. The word was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism.

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What is ATP ?? define it

Posted by ꧁༺★ṖŕīᑎƇɛ {Ƭĥɛ Ŀ❤Ѵɛ Ɠʊŕʊ}★༺꧂ ?? 5 years, 6 months ago

CBSE > Class 10 > Science

5 answers

꧁༺★ṖŕīᑎƇɛ {Ƭĥɛ Ŀ❤Ѵɛ Ɠʊŕʊ}★༺꧂ ?? 5 years, 6 months ago

I am not keshav, thumara matlub ha tyagi ji Ma aarohi hu smja

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D.S.Vignesh Saravanan 5 years, 6 months ago

ATP's expanded form is ADENOSINE TRI PHOSPHATE. It is the energy currency of a cell . The mitochondria of the cell oxidises the food of the cell and stores energy in the form of ATP.

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Surkha Tripathi 5 years, 6 months ago

Atp stands adeno tri phosphate Understand

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Suryansh Singh 5 years, 6 months ago

ATP stands for AdenoTriPhosphate. It is produced after the oxidisation of Starch. It is the Energy current of cell.

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Ashok Yadav 5 years, 6 months ago

Keshav ji hi nice to meet u

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What is/are gonands?

Posted by Suryansh Singh 5 years, 6 months ago

CBSE > Class 10 > Science

3 answers

Ashok Yadav 5 years, 6 months ago

I didn't get out

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Suryansh Singh 5 years, 6 months ago

Tnx

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Lucifer?? Morningstar?? 5 years, 6 months ago

The gonads, the primary reproductive organs, are the testes in the male and the ovaries in the female

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Draw 5 different circuits for finding equivalent resistance

Posted by .... ..... 5 years, 6 months ago

CBSE > Class 10 > Science

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Nane of Biology chapter

Posted by Rehàñ Alam 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Kashish Verma 5 years, 6 months ago

Control and coordination

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Robert V 5 years, 6 months ago

Life processes

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The hindrance presented by material of conductor to the smooth passing of electric current is known as

Posted by Muskan Bano 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Aryan Gupta 5 years, 6 months ago

Resistance

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Yogita Ingle 5 years, 6 months ago

The hindrence presented by material of conductor to the smooth passing of electric current is known as Resistence.

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What is chemical formula for lime water

Posted by Urvi Garg 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Gajavelli Swathi 5 years, 6 months ago

Ca(OH)2

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Lucifer?? Morningstar?? 5 years, 6 months ago

Ca(OH)2

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Why do metals behave as reducing agent❓❓

Posted by Ishika ? 5 years, 6 months ago

CBSE > Class 10 > Science

5 answers

Ashok Yadav 5 years, 6 months ago

Ishika do u know rider r u lovers

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Lucifer ? Morningstar? 5 years, 6 months ago

Because metals easily release electrons from their outermost shell to obtain stable octet configuration

1Thank You

? Rahul ? 5 years, 6 months ago

Abey intro dene ke liye time nii h smja...

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Ashok Yadav 5 years, 6 months ago

I am new can everyone introduce their self

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Ashok Yadav 5 years, 6 months ago

Hello nice to meet u

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Human Eye parts name

Posted by Suryansh Singh 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Ashok Yadav 5 years, 6 months ago

Do u have bf

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Ashok Yadav 5 years, 6 months ago

Retina,eyelid ,lens ,

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Can anyone say about Basicity and Acidity? Plz

Posted by Suryansh Singh 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Suryansh Singh 5 years, 6 months ago

Yup

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Ashok Yadav 5 years, 6 months ago

Ya if u say u have bf or not

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Name the metal which is most abundant in earth's crust.?❔❔

Posted by Ishika ? 5 years, 6 months ago

CBSE > Class 10 > Science

5 answers

Ishika ? 5 years, 6 months ago

Thank you .....??

2Thank You

Hippie Maari 5 years, 6 months ago

Please dont take serious i just joked before him to rescue mam

1Thank You

Hippie Maari 5 years, 6 months ago

Ishika why did u thank me

0Thank You

Emamuddin Ali 5 years, 6 months ago

Aluminum is the most abundant metal on earth crust

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Suryansh Singh 5 years, 6 months ago

Aluminum

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Intext question of chapter chemical reaction and equation

Posted by Chanchal Yadav Chanchal 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Manasvi Balakrishna 5 years, 6 months ago

See ur ncert tb or refer to this app

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ANSWER

Which one? concentrated or diluted acid is good conductor?

Posted by Suryansh Singh 5 years, 6 months ago

CBSE > Class 10 > Science

3 answers

Insane Gameplay 5 years, 6 months ago

Concentrated

1Thank You

Hippie Maari 5 years, 6 months ago

Concentrated is concentrated

1Thank You

Hippie Maari 5 years, 6 months ago

Hi vanshika

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ANSWER

What is a function of opic nerve in human eye?

Posted by Mahi....... . 5 years, 6 months ago

CBSE > Class 10 > Science

3 answers

Hippie Maari 5 years, 6 months ago

0Thank You

Mahi..... ♾ 5 years, 6 months ago

Thx

0Thank You

Lucifer ? Morningstar? 5 years, 6 months ago

The main function of the optic nerve is to transfer visual information from the retina to the vision centers of the brain via electrical impulses

1Thank You

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What is the atomic number of sulphur

Posted by Sunadhar Nag 5 years, 6 months ago

CBSE > Class 10 > Science

4 answers

Gajavelli Swathi 5 years, 6 months ago

0Thank You

Tina ? 5 years, 6 months ago

0Thank You

Hippie Maari 5 years, 6 months ago

0Thank You

Ananya Khandelwal 5 years, 6 months ago

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ANSWER

What is the colour of methyl orange in acidic solution ❓❓?

Posted by Ishika ? 5 years, 6 months ago

CBSE > Class 10 > Science

5 answers

Ankit Singh Thakur 5 years, 6 months ago

Welcome Ishika. Ji

2Thank You

Ishika ? 5 years, 6 months ago

Thank you

2Thank You

Ankit Singh Thakur 5 years, 6 months ago

Red

1Thank You

Ishika ? 5 years, 6 months ago

Thanks

2Thank You

Lucifer ? Morningstar? 5 years, 6 months ago

Red

2Thank You

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I can't able to understand the topic reaction form ch 1

Posted by Kashish Verma 5 years, 6 months ago

CBSE > Class 10 > Science

3 answers

Ishika ? 5 years, 6 months ago

Most wlcm??

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Kashish Verma 5 years, 6 months ago

Thanks

2Thank You

Ishika ? 5 years, 6 months ago

YouTube videos will definitely help u

3Thank You

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Define metre.

Posted by Lucifer ? Morningstar? 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Study Lover ?‍? ?‍? 5 years, 6 months ago

It is unit which is use to measure length.

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Parsec is the unit of:

Posted by Lucifer ? Morningstar? 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 6 months ago

One parsec is defined as the distance at which an arc of length one astronomical unit subtends an angle of one second of an arc .

1 parsec = 3.08 x 10¹⁶m.

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State the law of conservation of energy.

Posted by Lucifer ? Morningstar? 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Ishika ? 5 years, 6 months ago

Law of conservation of energy states that energy can neither be created nor destroyed. Energy can be changed only from one form to another.??

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State the law of momentum .

Posted by Lucifer ? Morningstar? 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 6 months ago

Law of conservation of momentum states that "For two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed."

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