إجابة
1-colorless, tasteless, oderless 2- heavier than the air 3-doesn't burn but it help in burning
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1-tastless ,oderless ,color less 2_oxgen is heaveir than air 3_doesn't burn but help in burning 4_rarely dissolve in water 5_has ability to unit with any elements 6_doesn't colour any matrial عرض المزيد
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