Chemistry
Chemistry, 20.09.2019 04:30, dondre54

Which of the following statements are true? i. models are always wrong unless they are proved by a theoryii. elements, such as lead, are made of tiny particles that mostly consist of open space. iii. the air you breathe is an example of heterogeneous mixture. iv. iv. an isotope of silver-108 has 61 neutrons.

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