Match the term with its description. Acid
Base
Ions
pH

A) A compound that increases hydrogen ions (H+) when it is dissolved in a solution
B) A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water
C) A compound that increases the hydroxide ions (OH−) when it is dissolved in a solution
D) An atom or molecule that has a positive or negative charge

Match each object to its description: a. coma of a comet b. comet tail c. oort cloud haze surrounding a nucleus created by solar wind. hypothetical sphere around the solar system

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: