CBSE > Class 09 > Science | CBSE Board | Homework Help

To separate ammonium chloride and common salt we will use sublimation as Ammonium chloride can change directly into gas if heated because it is a sublime substance so in a beaker or any suitable utensil we will take them both and cover it and attach a rod to it so that the gaseous form of ammonium chloride can be taken separately so we will heat and ammonium chloride will change into gaseous form and will be transferred to another beaker thus they will be separated hope it helps thank you

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Vasuda Ojha 2 years, 11 months ago

What is meant by cell

0Thank You

ANSWER

Discuss the effect of increasing temperature and pressure on the liquid state of a substance. Are these effects similar? If not assign reason.

Posted by Sameer Singh 2 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 2 years, 11 months ago

If pressure is increased the liquid substance will convert I to solid gradually.Increasing temperature and reducing pressure changes the state of liquid . therefore, it changes into solid.The effects are not similar

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ANSWER

Which one of the following will result in the formation of a mixture? Breaking of ice cubes into small pieces Adding sodium metal to water Agitating a detergent with water in a washing machine Crushing of a marble tile into small particles

Posted by Parishi Jain 2 years, 11 months ago

CBSE > Class 09 > Science

3 answers

Sia ? 2 years, 11 months ago

Agitating a detergent with water in a washing machine

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Manisha Pandey 2 years, 11 months ago

Agitating a detergent with water in a water machine

0Thank You

Kaavya J 2 years, 11 months ago

Agitating a detergent with water in a washing machine

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ANSWER

Define concavities tissue

Posted by Ravindra Sharma 2 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 2 years, 11 months ago

Tissue that supports, protects, and gives structure to other tissues and organs in the body. Connective tissue is made up of cells, fibers, and a gel-like substance. Types of connective tissue include bone, cartilage, fat, blood, and lymphatic tissue.

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ANSWER

Notes of all chapter

Posted by Darshan Sharma 2 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Ashutosh Pandey 2 years, 10 months ago

????

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ANSWER

Name the two components of such solutions and name the property by virtue by which scatters light?

Posted by Paramjeet Kumar 2 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 2 years, 11 months ago

It is a heterogeneous mixture in which the size of the solute particles is between 1 nm (10-9 m) to 100 nm. Components : Dispersed phase, dispersion medium. The particles shows tyndall effect as the size of particles is quite big.

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ANSWER

A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 m/s, The kinetic energy of the other mass is

Posted by Joshi Tha 2 years, 11 months ago

CBSE > Class 09 > Science

3 answers

Ananya Shelar 2 years, 11 months ago

486 J Momentum is conserved just before and after the explosion of the bomb. Initial momentum is zero, so the resultant momentum of the exploded pieces should be zero. That is m1v1=m2v2 ⇒(18)(6)=12(v2) ⇒v2=9m/s ∴ the KE of 12kg mass=2112(92)=486J

2Thank You

Shubham Kumar 2 years, 11 months ago

12kg

3Thank You

Soumya Menon 2 years, 11 months ago

486joule

1Thank You

ANSWER

A mixture of sulphur and carbon disulphide is (a) Heterogenous and shows Tyndall effect (b) Homogenous and shows Tyndall effect (c) Heterogenous but doesn’t show Tyndall effect (d) Homogenous but doesn’t show Tyndall effect. Explain the reason for the answer.

Posted by Aradhana Kundo 2 years, 11 months ago

CBSE > Class 09 > Science

2 answers

Sia ? 2 years, 11 months ago

Heterogenous and shows Tyndall effect

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Paridhi Agrawal 2 years, 11 months ago

Heterogeneous but doesn't show Tyndall effect

0Thank You

ANSWER

Momentum of the object is depend on

Posted by Nidesh Oram 2 years, 11 months ago

CBSE > Class 09 > Science

2 answers

Paridhi Agrawal 2 years, 11 months ago

Mass and Velocity

0Thank You

Neil :) 2 years, 11 months ago

Mass and velocity??

2Thank You

ANSWER

What is the boiling point of Lithium

Posted by Subhajit Das 2 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Sia ? 2 years, 11 months ago

1,330 °C

0Thank You

ANSWER

A man of 60kg runs along the rail with a velocity of 5m/sec and jump into a car of mass 120kg standing on the rail. Calculate the velocity with which the cars move

Posted by Rehan Basir 2 years, 11 months ago

CBSE > Class 09 > Science

2 answers

Narayan Sharma 2 years, 11 months ago

2.5

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Prabhat Jain 2 years, 11 months ago

2.5 m/s

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ANSWER

A piece of Stone is thrown vertically upward it reaches the maximum height attained by the stone

Posted by Aditya Sharma 2 years, 11 months ago

CBSE > Class 09 > Science

2 answers

Sahitya Rathore 2 years, 11 months ago

Then the final velocity of stone ate the end will be zero

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Rohit Singh 2 years, 11 months ago

h = ut +½at²

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ANSWER

Science practical notes

Posted by Sakshi Kumari 2 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

which one of the following will result in the formation of mixture

Posted by Mayuresh Sonawane 2 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is the biggest cell of the world

Posted by Prachi Sethy 2 years, 11 months ago

CBSE > Class 09 > Science

5 answers

Aman Thapa Class 9Th A 2 years, 11 months ago

In humans biggest cell is ovum Or fat cells Nerve cells are longest cell ok bro

1Thank You

Satyam Kumar 2 years, 11 months ago

Ostrich egg

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Satyam Kumar 2 years, 11 months ago

Ostrich egg

1Thank You

Poornam Punitha 2 years, 11 months ago

Ostrich egg is the biggest cell in the world

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Krishna Raghav 2 years, 11 months ago

nerve cell

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ANSWER

What is uniform accelerated motion ?

Posted by Saransh Tiwari 2 years, 11 months ago

CBSE > Class 09 > Science

2 answers

Abhay Dubey 2 years, 11 months ago

When a object travel equal distance in equal interval of time is called uniformal motion

1Thank You

Saransh Tiwari 2 years, 11 months ago

□ Uniform accelerated motion means that velocity changes by. equal amounts in equal time intervals. □ An object that accelerates is speeding up, slowing down, or □ An object that accelerates is speeding up, slowing down, or turning.

1Thank You

ANSWER

What is the biggest cell in human body

Posted by Puneet Kushwah 2 years, 11 months ago

CBSE > Class 09 > Science

4 answers

Kartik Yadav 2 years, 11 months ago

Nervous cell

0Thank You

Kamlesh Patel 2 years, 11 months ago

Nerve cell

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Dev Patel 2 years, 11 months ago

Nerve cell

3Thank You

Dhara . 2 years, 11 months ago

Nerve cell

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ANSWER

An object has moved through a distance can it have zero displacement if yes support your answer with an example

Posted by Aditi Raut 2 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Kartik Yadav 2 years, 11 months ago

No because if we move through any distance there is displacement equal to that if we come at that point so displacement will be zero

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Statment A Newton and Rsquo's first law in vaild from the point in an aircraft which is taking off statement B Newton and Rsquo's first law in vaild from the observer in a train moving with constant velocity

Posted by Parul Singh 2 years, 11 months ago

CBSE > Class 09 > Science

2 answers

Harshit Thakur 2 years, 11 months ago

I want answer

2Thank You

Parul Singh 2 years, 11 months ago

I want answer

3Thank You

ANSWER

There are two statement

Posted by Parul Singh 2 years, 11 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is matabolic acid

Posted by Md Modasshir Alam 2 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Prabhat Jain 2 years, 11 months ago

There us nothing like metabolic acid , Actually these are acids which help in Metabolism like HCl in stomach

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ANSWER

Newton's 4th law ?

Posted by Kishore ✌️ 2 years, 11 months ago

CBSE > Class 09 > Science

4 answers

Md Modasshir Alam 2 years, 11 months ago

Newton's ke 3 hi laws hai

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Varsha Kashyap Varsha 2 years, 11 months ago

Measuring temperatures

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Brahmchari Yadav 2 years, 11 months ago

What.does.the.odometer.of.an.automobile.measures

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Nagendra Singh 2 years, 11 months ago

There is no 4th law

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ANSWER

What is retardation? Plz tell in one word ?

Posted by Kishore ✌️ 2 years, 11 months ago

CBSE > Class 09 > Science

4 answers

Paridhi Agrawal 2 years, 11 months ago

Negative Acceleration

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Himanshu Yadav 2 years, 11 months ago

a iron boll fall down

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Varsha Kashyap Varsha 2 years, 11 months ago

Scale of measuring temperatures

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Saurabh Dhakar 2 years, 11 months ago

It is negative acceleration produced by a body.

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ANSWER

Who is father of histology

Posted by Guna Keerthi 2 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Kishore ✌️ 2 years, 11 months ago

Marcello Malpighi (1628-1694), an Italian anatomist, is in fact considered the true “Father of Histology.

5Thank You

ANSWER

force of 50N acts on a body initially at rest . Find the momentum of the body at 3second and 6 second after the force starts acting.

Posted by Shivam Tiwari 2 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Kaavya J 2 years, 11 months ago

Is it the complete question? Because you can't answer it without knowing the mass of the body

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विलयन क्या है

Posted by Pushpa Devi 2 years, 11 months ago

CBSE > Class 09 > Science

1 answers

Shreya Chawla 2 years, 11 months ago

दो या दो से अधिक पदार्थों का समांगी मिश्रण बिलियन कहलाता है . ... यह प्रकट करता है कि विलियन में चीनी और नमक समान रूप से बंटे होते हैं. बिलियन में विलायक और विलय होते है. बिलियन में जिस की मात्रा अधिक होती है

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ANSWER

From a rifle of mass 4 kg , a bullet of mass 50 gm is fired with an initial velocity of 35 m/s. Calculate the initial recoil velocity of the rifle.

Posted by Piyush Raj 2 years, 11 months ago

CBSE > Class 09 > Science