Questions from General Chemistry

Q: Would an automobile moving at a constant speed of 100 km/

Would an automobile moving at a constant speed of 100 km/h violate a 65-mph speed limit?

Q: Write each of the following numbers in standard scientific notation.

Write each of the following numbers in standard scientific notation. a. 1/1033 b. 1/105 c. 1/10-7 d. 1/0.0002 e. 1/3,093,000 f. 1/10-4 g. 1/109 h. 1/0.000015

Q: Which weighs more, 0.001 g of water or 1

Which weighs more, 0.001 g of water or 1 mg of water?

Q: Which weighs more, 4.25 g of gold or 425

Which weighs more, 4.25 g of gold or 425 mg of gold?

Q: The length 500 m can also be expressed as nm.

The length 500 m can also be expressed as nm.

Q: A perfect cube of unknown elemental composition has a length of 1

A perfect cube of unknown elemental composition has a length of 1.40 m on each side. The mass of the cube is 21.57 Mg (megagrams). Using this information and Table 2.8, determine the metal used to pre...

Q: You are working on a project where you need the volume of

You are working on a project where you need the volume of a box. You take the length, height, and width measurements and then multiply the values together to find the volume. You report the volume of...

Q: Indicate the number of significant figures in each of the following:

Indicate the number of significant figures in each of the following: a. This book contains over 500 pages. b. A mile is just over 5000 ft. c. A liter is equivalent to 1.059 qt. d. The population o...

Q: Round off each of the following numbers to three significant digits.

Round off each of the following numbers to three significant digits. a. 0.00042557 b. 4.0235 * 10-5 c. 5,991,556 d. 399.85 e. 0.0059998

Q: Round off each of the following numbers to the indicated number of

Round off each of the following numbers to the indicated number of significant digits. a. 0.75555 to four digits b. 292.5 to three digits c. 17.005 to four digits d. 432.965 to five digits