Scientific Notation Practice Problems, Quizzes of Chemistry

Download Scientific Notation Practice Problems and more Quizzes Chemistry in PDF only on Docsity! 1. The number 0.0000356 in scientific notation is _________________. A) 356 x 10-5 B) 356 x 10-5 C) 3.56 x 10-6 D) 3.56 x105 E) 3.56 x 10-5 Points Earned: 0.0/0. 0 Correct Answer(s): E 2. The number 8734000000 in exponential notation is ________________. A) 8.734 x 108 B) 8.734 x 10-9 C) 8.734 x 109 D) 8734 x 106 E) 0.8734 x 1010 Points Earned: 0.0/0. 0 Correct Answer(s): C 3. The number 7.42 x 10-2 could also be written as ______________. A) 742 B) 0.742 C) 0.00742 D) 0.0742 E) 74200 Points Earned: 0.0/0. 0 Correct Answer(s): D 4. The number 7.6 x 103 also can be written as _________. A) 7600 B) 76000 C) 760 D) 76 E) 0.0076 Points Earned: 0.0/0. 0 Correct Answer(s): A 5. Perform the following operations and express the result with correct number of significant figures. (5.8x102) (4.32 x 108) A) 2.5 x 1011 B) 2.51 x1011 C) 25.056 x 1016 D) 25.1 x 1016 E) 2.5 x 1016 Points Earned: 0.0/0. 0 Correct Answer(s): A