Which example involves a phase change in which heat energy is released by the substance?
a. freezing ice cream
b. cooking a pot of soup
c. melting ice under sunlight
d. watching frost disappear into air
choose an choice

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.

Compare and contrast refraction of light and sound will give brainliest

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate