In the following equation, which product is a diatomic molecule?
2 na + 2 hcl → 2 nacl + h

2na

h

2hcl

all the above

There should actually be a subscript of 2 on the H. Hydrogen is one of the diatomic molecules, meaning that it is only found in nature in pairs of 2. The second answer is correct.

Ten percent of energy is transferred from sun to the level indicated.

It was said to have happened by earthquakes, the shifts in the tectonic plates moved everything