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Questions by Nilaksha Perera

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Summary of tears of a bride

asked Jul 7, 2018

English
high-school

1 answer

1 vote

14.8k views

Oxygen and copper are examples of what? Two substances with identical atoms. Two different molecules. Two different elements. Atoms that can’t combine to form compounds.

asked Jan 21, 2018

Chemistry
middle-school

2 answers

3 votes

82.0k views

When is the sum of two negative mixed numbers an integer

asked May 8, 2017

Mathematics
middle-school

1 answer

4 votes

11.7k views

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