By Greg Curran
Do you worry mole conversions and Avogadro's quantity? Are oxidation-reduction reactions simply too a lot to deal with? Are the suitable gasoline legislation getting you down? whilst your instructor attempts to coach you ways to call natural compounds, is she or he talking a language you by no means realized? Homework Helpers: Chemistry is a hassle-free overview ebook that would make each student-or dad or mum attempting to support their child-feel like she or he has a personal Chemistry educate. thoughts are defined in transparent, easy-to-understand language, and difficulties are labored out with step by step tools which are effortless to persist with. every one lesson comes with a variety of assessment questions and solution keynotes that specify each one right resolution and why it is right. The Homework Helpers sequence is simply what scholars have to advance their self assurance and provides them the assistance they should ace even the main tough periods.
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Example text
For some, it seems more important to be quick than to be accurate. The problem with this is that the laboratory activities that your instructor is likely to offer depend upon reasonably accurate measurements. If your measurements are poor, your results will be inaccurate, and you miss those “magic” moments when the results of an experiment verify some concept or constant that you have been studying in your text. To get the most out of your learning experiences, put a great deal of care into the measurements that you take in the lab.
The SI unit for length is the _______________. 2. The SI unit called the “ampere” measures _______________. 3. The SI unit for temperature is the _______________. 4. There are __________ centigrams in one gram. 5. There are __________ centigrams in one kilogram. 6. 45 meters to centimeters. 7. Convert 7640 decimeters to kilometers. 8. Which of the following is not an SI base unit? a) meter b) candela c) mole d) joule 9. Which of the following units is used to measure energy? a) meter b) candela c) mole d) joule 10.
B. He]—Compounds will always show two or more capital letters in their formulas. 17. [A. copper]—Copper has the ability to be hammered into sheets, meaning it is malleable. 18. [D. NO]—Notice that NO is the only formula shown that has two or more capital letters. 19. [B. table salt]—Table salt contains the elements sodium and chlorine and is represented by the formula NaCl. 20. [D. reactivity to acid]—Reactivity to acid would only be observable in a chemical reaction. 21. [A. volume]—The volume of an object is a measure of how much space it occupies.