help me with chemistry
Attachments:

Answers
Answered by
0
Answer:
a -1
b -3
c -2
d- 1
These are valencies
Follow and mark brainliest please.
Similar questions
English,
3 months ago
Business Studies,
3 months ago
Business Studies,
6 months ago
Social Sciences,
1 year ago
Math,
1 year ago