Classify each of the following binary compounds by the oxidation number of hydrogen. match each item with appropriate category. items: h2o, hcl, mgh2, nh3, nah, cah2,h2,ch4 cateogories -1, 1+, 0

1. Category +1: , , , ,

2. Category -1: ,

3. Category 0:

Explanation:

1. Category +1:

The more common number of oxidation of the oxygen is +1.

2. Category -1:

The hydrogen takes the number of oxydation -1 in the hydrides.

3. Category 0:

The number of oxydation of an isolated element is always 0.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.