High amylose starches are composed of entirely of amylose. 

alpha-crystals are the most stable of the crystal forms

Emulsifiers increase the surface tension between the two phases by having a hydrophobic and hydrophilic character at the same time.

What ingredient(s) are essential to make a regular (NOT sugar free or reduced calorie) jelly? 

What is the central question asked by authorial intention?

Methylcellulose is made by treating cellulose with a strong acidic solution resulting in some of the hydroxyl (OH) groups being substituted with methyl (OCH3).

The table below shows the difference in brightness between stars of different magnitudes.  Using the table, the star Schmi 387 has an apparent magnitude of 3.6, and it is found 80 pc away from Earth. Which is the most likely value below for its absolute magnitude?    

Procyon lies about 4 pc distant, thus its parallax is about:

Star A is a main sequence star of spectral type G3 and star B is a blue giant of spectral type B1. Which statement below is correct?

The technique employed in the previous problem for finding a star’s distance is called what?