Chemistry teacher

Brinda

Asked: December 13, 2020In: Class 9 Science

Summarize the rules for writing of distribution of electrons in various shells for the first eighteen elements.

NCERT Solutions for Class 9 Science Chapter 4 Structure of the Atom NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-54 Questions No- 6

Brinda

Asked: December 12, 2020In: Class 10 Science

Give reasons: We can easily move our hand in air, but to do the same through a solid block of wood, we need a karate expert.

NCERT Solution for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-6 Questions No:3 Part: d

Brinda

Asked: December 12, 2020In: Class 10 Science

Give reasons: A wooden table should be called a solid.

NCERT Solution for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-6 Questions No:3 Part: c

Brinda

Asked: December 12, 2020In: Class 10 Science

Give reasons: A gas exerts pressure on the walls of the container.

NCERT Solution for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-6 Questions No:3 Part: b

Brinda

Asked: December 12, 2020In: Class 10 Science

Give reasons: A gas fills completely the vessel in which it is kept.

NCERT Solution for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-6 Questions No:3 Part: a

Brinda

Asked: December 12, 2020In: Class 10 Science

A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?

NCERT Solution for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-3 Questions No-3

Bhavani das

Asked: October 30, 2020In: Class 9

Which postulate of Dalton’s atomic theory is the result of the law of conservation of mass?

NCERT Solutions for Class 9 Science Chapter 3 Atoms And Molecules NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-33 Questions No-3

Viraj Badal

Asked: October 30, 2020In: Class 9

What are polyatomic ions? Give examples.

NCERT Solutions for Class 9 Science Chapter 3 Atoms And Molecules NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-44 Questions No- 3

Bhavani das

Asked: October 30, 2020In: Class 9

Which postulate of Dalton’s atomic theory can explain the law of definite proportions?

NCERT Solutions for Class 9 Science Chapter 3 Atoms And Molecules NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-33 Questions No-4

Bhavani das

Asked: October 30, 2020In: Class 9

Define the atomic mass unit.

NCERT Solutions for Class 9 Science Chapter 3 Atoms And Molecules NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-35 Questions No-1

Chemistry teacher

Summarize the rules for writing of distribution of electrons in various shells for the first eighteen elements.

Give reasons: We can easily move our hand in air, but to do the same through a solid block of wood, we need a karate expert.

Give reasons: A wooden table should be called a solid.

Give reasons: A gas exerts pressure on the walls of the container.

Give reasons: A gas fills completely the vessel in which it is kept.

A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?

Which postulate of Dalton’s atomic theory is the result of the law of conservation of mass?

What are polyatomic ions? Give examples.

Which postulate of Dalton’s atomic theory can explain the law of definite proportions?

Define the atomic mass unit.

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