Identify the part of the sarcomere in the picture below labelled 6.

The inner connective tissue sheath surrounding the muscle cell (fiber) is the endomysium.  The inner connective tissue sheath surrounding the trabeculae of bone in spongy bone is the endosteum.

The formula for sodium sulfide is 

Select True or False: The following list shows the nitride ion, nitrate ion, and nitrite ion, in order N3-, NO3-, and NO2- 

What is the name of H3PO3 (aq)? 

Select True or False: The name of HF(aq) is hydrofluoric acid

How many protons are there in one atom of nickel? 

Name the compound Co2(SO3)3 

What is the ion ClO4– named? 

Select True or False: The correct formula for octane is C8H18