Carbohydrates, such as starch and fiber, contain much longer carbon chains than their shorter, simpler counterparts. These long chains are made up of the same basic material, simple carbohydrates. This means that the long carbohydrate chains are really just polymers of simple ones.
a) true
b) false

True

Explanation:

Long carbohydrates or polysaccharides are made of joining carbohydrates or sugar units. Monomer of carbohydrates are glucose. In starch, two glucose units are joined by α 1,4 linkages. In starch, linear units and branched units both are present.  

Linear units are called amylose and branched units are called amylopectin.  

Branched units linked to linear unit by 1,6-alpha glycosidic bonds.

Therefore, its can be said that long carbohydrate chains are really just polymers of simple ones. So, the given statement is true.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.