Mastering Chemistry Chapter 1 Answer Key

regcleaner

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You could try to guess the magic number but you would probably use up all your tries before getting the answer. Notice the new Hints button underneath the answer box for this question. Clicking this button will open up a list of hints that will guide you to the correct number.

Hint 1. Different types of hints and their impact on grading Notice that there are three hints for this question. You are not required to use all of the hints or to use them in order. Each hint has a tagline that describes its contents. Based on the tagline you can decide whether or not a particular hint will be useful to you. There are two kinds of hints.

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Some hints, such as Hint 2 below, just provide you with information. Other hints like seo tools, such as Hint 3 below, give you an opportunity to answer a simpler question that is related to the main question you are solving. These hints either have questions in the tagline or tell you to do something (e.g., Find..., Determine..., Identify..., etc.).

There are two ways that this type of hint can help you: Answering the simpler question gives you a chance to check that you are on the right track. • If you correctly answer the simpler question, you will receive partial credit for the part even if you are unable to answer the main question. Your instructor may choose to give you a bonus for not using hints or to deduct a small penalty for using hints.

If you are stuck, using the hints will usually result in a higher score than simply trying to guess because you may lose fewer points for opening a hint than for getting the answer to the main question incorrect. There is a more detailed explanation of how hints are graded in the help available by clicking the Help link at the top right corner of your screen in the main Mastering window.

In this problem, however, you will not lose any credit for using the hints. Now, open up the second hint for some help finding the magic number.

Hint 2. How to approach the problem Although you could try to guess the magic number you would most likely exhaust your tries before getting the correct answer. To help you, the magic number is 15 x x, where x is a number between 1 and 10.

Hint 3. What is x ? Recall that the previous hint stated that the magic number is 15 x x, where x is a number between 1 and 10. Specifically x is an even number between 1 and 10. Try to guess the value of x. You may submit as many guesses as you need. Enter each guess into the answer box that follows.

Correct Your instructor may choose to give you a bonus for not using hints or to deduct a small penalty for using hints. If you are stuck, using the hints will usually result in a higher score than simply trying to guess because you may lose fewer points for opening a hint than for getting the answer to the main question incorrect. Note that you are never required to use the hints; if you want to figure the question out on your own, go ahead!

Notice that a new button, Review Part, appears when you correctly answer a part with hints. This button allows you to review all of the hints for that part, even if you didn't need them to get the answer. This is a useful way to review the question when studying for a test. You do not lose any credit for reviewing the hints after you have answered the question. If you didn't look at all of the hints while answering the last question, you should read through them now for some important information about hints and hint grading.
 

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