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Bhavani das
Bhavani das
Asked: October 30, 2020In: Class 9

Write down the names of compounds represented by the following formulae Al₂(SO₄)₃.

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-39 Questions No-2 Write down the names of compounds represented by the following formulae: (i) Al2(SO4)3 (ii) CaCl2 (iii) K2SO4 (iv) ...

2020-2021atoms and moleculescbsechapter 3class9ncertscience
  • 2 2 Answers
  • 717 Views
  • 2 Votes
Answer
Bhavani das
Bhavani das
Asked: October 30, 2020In: Class 9

What is meant by the term chemical formula?

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-39 Questions No-3  

2020-2021atoms and moleculescbsechapter 3class9ncertscience
  • 2 2 Answers
  • 275 Views
  • 2 Votes
Answer
Bhavani das
Bhavani das
Asked: October 30, 2020In: Class 9

How many atoms are present in a (i) H₂S molecule and (ii) PO₄³⁻ ion?

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-39 Questions No-14 (i) H₂S molecule and (ii) PO₄³⁻ ion?

2020-2021atoms and moleculescbsechapter 3class9ncertscience
  • 2 2 Answers
  • 219 Views
  • 2 Votes
Answer
Bhavani das
Bhavani das
Asked: October 30, 2020In: Class 9

Calculate the molecular masses of : H₂, O₂, Cl₂, CO₂, CH₄, C₂H₆, C₂H₄, NH₃, CH₃OH.

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-40 Questions No-1

2020-2021atoms and moleculescbsechapter 3class9ncertscience
  • 1 1 Answer
  • 190 Views
  • 2 Votes
Answer
Bhavani das
Bhavani das
Asked: October 30, 2020In: Class 9

Calculate the formula unit masses of ZnO, Na₂O, K₂CO₃, given atomic masses of Zn = 65 u, Na = 23 u, K = 39 u, C = 12 u, and O = 16 u.

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-40 Questions No-2

2020-2021atoms and moleculescbsechapter 3class9ncertscience
  • 2 2 Answers
  • 473 Views
  • 2 Votes
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