which is a pure substance?\no air\no nitrogen\no apple juice\no tap water
which is a pure substance?\no air\no nitrogen\no apple juice\no tap water
Answer
Answer:
nitrogen
Brief Explanations:
A pure substance has a uniform and definite composition. Nitrogen ((N_2)) is an element with a definite composition. Air is a mixture of gases (e.g., (N_2), (O_2), (CO_2) etc.). Apple juice contains water, sugars, vitamins etc. Tap water has dissolved minerals and gases. So, nitrogen is a pure substance.