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Please help me please

asked Feb 15, 2021 95.9k views

1 vote

Please help me please

Please help me please-example-1

Chemistry
high-school

Sajid Ali asked

8.4k points

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2 Answers

4 votes

Answer:

20 is b and 21 is a.

Chethan Bandi answered Feb 17, 2021

by Chethan Bandi

7.8k points

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7 votes

Answer:

b

Step-by-step explanation:

i read this once and remember,trust me!

Aman Mathur answered Feb 20, 2021

7.3k points

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