plz answer fast .........
Attachments:
Answers
Answered by
1
Answer:
All or 1,2,3 ans fast.....
Answered by
1
Answer:
1) (i) Molecular mass of H2O = 2 (1.008 amu) + 16.00 amu = 18.016 amu.
(ii)molar mass of sulfuric acid is "98.09 g/mol."
2)4 significant
3)law of definate proportion
4)Beo
5) ka second
6) cl(clorine)
7)These electrons are arranged as Cu2+ = 1s22s22p63s23p63d9.
8) eight elements
9) (i) Phosphorus (P): 1s2 2s2 2p6 3s2 3p3
No of unpaired electron = 3
(ii) Chromium (Cr): 1s2 2s2 2p6 3s2 3p6 4s1 3d5
No of unpaired electrons = 6 (since 1 electron is to be added to 4s & 5 electron to be added to 3d orbital.
10) uv regions
11) x rays
please matk me as brainliest
prachi
brainliest tho kardo please
Similar questions