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BidishaKashayap1333
@bidishakashayap1333
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Joined: Oct 11, 2021
Last seen: Jul 27, 2023
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Topics: 2174 / Replies: 0
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Topic
Calculate the molecular masses of the following compounds: (a) Hydrogen sulphide, H2S (b) Carbon disulphide, CS2
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 266
Topic
Calculate the molecular mass of hydrogen bromide (HBr).
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 103
Topic
Calculate the molecular mass of chloroform(CHCl3).
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 218
Topic
Calculate the molecular mass of Nitric acid, HNO3.
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 201
Topic
Calculate the molecular mass of ethanoic acid, CH3COOH.
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 231
Topic
Calculate the molecular masses of the following compounds: (a) Methanol CH3OH (b) Ethanol, C2H5OH
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 269
Topic
Calculate the molecular masses of the following compounds: (a) Methane, CH4 (b) Ethane, C2H6 (c) Ethene, C2H4
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 211
Topic
Calculate the molecular masses of the following: (a) Hydrogen, H2 (b) Oxygen, O2 (c) Chlorine, Cl
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 87
Topic
The molecular formula of glucose is C6H12O6. Calculate its molecular mass.
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 257
Topic
What is the significance of the formula of H2O?
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 247
Topic
What is the significance of the formula of a substance?
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 271
Topic
What do the following denote? (i) N (ii) 2N (iii) N2 (iv) 2N2
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 313
Topic
What is the difference between 2H and H2?
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 223
Topic
(a) In what form does oxygen gas occur in nature? (b) In what form do noble gases occur in nature?
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 94
Topic
What do the symbols, H2, S and O4 mean in the formula H2SO4?
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 97
Topic
What do the following abbreviations stand for? (i) O (ii) 2O (iii) O2 (iv) 3O2
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 233
Topic
Explain the difference between 2N and N2.
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 102
Topic
Write the formulae of the following compounds. Also, name the elements present in them. (a) Water (b) Ammonia (c) Methane (d) Sulphur dioxide (e) Ethanol
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 118
Topic
What is meant by a chemical formula? Write the formulae of one element and one compound.
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 92
Topic
What is the atomicity of the following? (a) Oxygen (b) Ozone (c) Neon (d) Sulphur (e) Phosphorus (f) Sodium
3 years ago
Forum
Atoms and Molecules
Replies: 0
Views: 75
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