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

0Thank You

Vasuda Ojha 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Sia ? 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Sia ? 3 years, 1 month ago

Agitating a detergent with water in a washing machine

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Manisha Pandey 3 years, 1 month ago

Agitating a detergent with water in a water machine

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Kaavya J 3 years, 1 month ago

Agitating a detergent with water in a washing machine

0Thank You

ANSWER

Define concavities tissue

Posted by Ravindra Sharma 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Sia ? 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Ashutosh Pandey 3 years ago

????

1Thank You

ANSWER

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

Posted by Paramjeet Kumar 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Sia ? 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Ananya Shelar 3 years, 1 month 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 3 years, 1 month ago

12kg

3Thank You

Soumya Menon 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Sia ? 3 years, 1 month ago

Heterogenous and shows Tyndall effect

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Paridhi Agrawal 3 years, 1 month ago

Heterogeneous but doesn't show Tyndall effect

0Thank You

ANSWER

Momentum of the object is depend on

Posted by Nidesh Oram 3 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Paridhi Agrawal 3 years, 1 month ago

Mass and Velocity

0Thank You

Neil :) 3 years, 1 month ago

Mass and velocity??

2Thank You

ANSWER

What is the boiling point of Lithium

Posted by Subhajit Das 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Sia ? 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Narayan Sharma 3 years, 1 month ago

2.5

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Prabhat Jain 3 years, 1 month ago

2.5 m/s

1Thank You

ANSWER

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

Posted by Aditya Sharma 3 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Sahitya Rathore 3 years, 1 month ago

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

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Rohit Singh 3 years, 1 month ago

h = ut +½at²

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ANSWER

Science practical notes

Posted by Sakshi Kumari 3 years, 1 month ago

CBSE > Class 09 > Science

0 answers

ANSWER

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

Posted by Mayuresh Sonawane 3 years, 1 month ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is the biggest cell of the world

Posted by Prachi Sethy 3 years, 1 month ago

CBSE > Class 09 > Science

5 answers

Aman Thapa Class 9Th A 3 years, 1 month ago

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

1Thank You

Satyam Kumar 3 years, 1 month ago

Ostrich egg

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Satyam Kumar 3 years, 1 month ago

Ostrich egg

1Thank You

Poornam Punitha 3 years, 1 month ago

Ostrich egg is the biggest cell in the world

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Krishna Raghav 3 years, 1 month ago

nerve cell

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ANSWER

What is uniform accelerated motion ?

Posted by Saransh Tiwari 3 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Abhay Dubey 3 years, 1 month ago

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

1Thank You

Saransh Tiwari 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science

4 answers

Kartik Yadav 3 years, 1 month ago

Nervous cell

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Kamlesh Patel 3 years, 1 month ago

Nerve cell

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Dev Patel 3 years, 1 month ago

Nerve cell

3Thank You

Dhara . 3 years, 1 month ago

Nerve cell

2Thank You

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 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Kartik Yadav 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Harshit Thakur 3 years, 1 month ago

I want answer

2Thank You

Parul Singh 3 years, 1 month ago

I want answer

3Thank You

ANSWER

There are two statement

Posted by Parul Singh 3 years, 1 month ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is matabolic acid

Posted by Md Modasshir Alam 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Prabhat Jain 3 years, 1 month ago

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

0Thank You

ANSWER

Newton's 4th law ?

Posted by Kishore ✌️ 3 years, 1 month ago

CBSE > Class 09 > Science

4 answers

Md Modasshir Alam 3 years, 1 month ago

Newton's ke 3 hi laws hai

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Varsha Kashyap Varsha 3 years, 1 month ago

Measuring temperatures

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Brahmchari Yadav 3 years, 1 month ago

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

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Nagendra Singh 3 years, 1 month ago

There is no 4th law

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ANSWER

What is retardation? Plz tell in one word ?

Posted by Kishore ✌️ 3 years, 1 month ago

CBSE > Class 09 > Science

4 answers

Paridhi Agrawal 3 years, 1 month ago

Negative Acceleration

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Himanshu Yadav 3 years, 1 month ago

a iron boll fall down

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Varsha Kashyap Varsha 3 years, 1 month ago

Scale of measuring temperatures

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Saurabh Dhakar 3 years, 1 month ago

It is negative acceleration produced by a body.

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Who is father of histology

Posted by Guna Keerthi 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Kishore ✌️ 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Kaavya J 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Shreya Chawla 3 years, 1 month 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 3 years, 1 month ago

CBSE > Class 09 > Science