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what is hydrogen homogeneous or heterogeneous
Explain why


Sagot :

sand and salt: heterogeneous; salt water: homogeneous; pure water: compound; tossed salad: heterogeneous; hydrogen: element; unfiltered air: homogeneous; an apple: heterogeneous; granite: heterogeneous; iron: element; iron with rust: heterogeneous; nitric acid: compound; wood: heterogeneous.