Question

Is nitrox (a combination of oxygen and nitrogen used to fill scuba tanks) a pure substance (element or compound) or a mixture (homogeneous or heterogeneous)?

1) Pure substance
2) Mixture

Answer 1

Nitrox is a homogeneous mixture, or solution, consisting of oxygen and nitrogen used to fill scuba tanks.

Step-by-step explanation:

Nitrox, which is a combination of oxygen and nitrogen used to fill scuba tanks, is a mixture rather than a pure substance. It is specifically a homogeneous mixture, also known as a solution. In this case, the mixture is uniform, meaning that the oxygen and nitrogen are evenly distributed throughout the scuba tank.