Ernest Hemingway was once asked to write an entire story in just six words. He wrote, " For Sale: baby shoes, never worn."
This "story" has several questions that go along with it. Why weren't the baby shoes ever worn? What happened to the baby? Keeping it simple and to the point is an essential key in writing. Some writers add in pointless description to make themselves look smarter. Others, get rid of the unneeded information during the editing process. Certain information is valuable to the reader, while other information is stuff you threw in while trying to put together a chapter. When you review what you've written, make sure you analyze the information you've put down, and ask yourself if it is needed in the story.
Some sentences have too much in just themselves alone. Cut back on unnecessary words too. In a sentence like the following, "He put the red baseball cap over his head, and ran out the door as quick as possible." That could be changed to, "He put the red cap on his head, and sprinted out the door." Both sentences deliver similar information, and the second one is more smooth, and unless the hat being a baseball cap is valuable to the story, it is not needed. When writing or reviewing your next chapter, make sure to keep a look out for information that could be scrapped, and try to keep the sentences simple, and to the point.