Questions from General Chemistry

Q: Is the process represented below a physical or chemical change?

Is the process represented below a physical or chemical change?

Q: The composition of a given pure compound is always no matter what

The composition of a given pure compound is always no matter what the source of the compound.

Q: Which of the following are considered compounds (as opposed to elements

Which of the following are considered compounds (as opposed to elements)? a. He b. F2 c. HCl d. S8

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

Write each of the following numbers in standard scientific notation. See the Appendix if you need help multiplying or dividing numbers with exponents. a. 1/102 b. 1/10-2 c. 55/103 d. (3.1 * 106)/1...

Q: The fundamental unit of length or distance in the metric system is

The fundamental unit of length or distance in the metric system is the .

Q: Draw a piece of lab glassware that can appropriately measure the volume

Draw a piece of lab glassware that can appropriately measure the volume of a liquid as 32.87 mL.

Q: Which distance is farther, 100 km or 50 mi?

Which distance is farther, 100 km or 50 mi?

Q: 1 L = dm3 = cm3 = mL

1 L = dm3 = cm3 = mL

Q: The volume 0.250 L could also be expressed as mL

The volume 0.250 L could also be expressed as mL.

Q: The distance 10.5 cm could also be expressed as m

The distance 10.5 cm could also be expressed as m.