Chemistry first term 21

What is the percent error if a measured value is 24.59 g/mL and the accepted value is 25.49 g/mL?

What is the SI unit for temperature?

Two items that must be worn during any laboratory experiment are ___________.

What is this number in standard notation? 2.70 x 10^-4

The closeness of an experimental value to an accepted value is its ______

Convert 299,000,000 to scientific notation.

What is this number expressed in scientific notation? 702.0

How many significant figures are in the following number? 20.308

Research that is conducted for the sake of increasing fundamental knowledge is __________.

Perform the indicated mathematical operations and report the answer to the proper number of significant figures. (21.55 x 4.12 ) / 42.42

What is the area in square millimeters of a rectangle that is 7.431 cm long and 23.33 mm wide?

Solve the following problem with the correct number of significant figures? 5.31 cm + 8.4 cm + 7.932 cm

Research on solubility as a factor that affects the digestion of foods in humans would be an example of ______________.

What is the percent error if a measured value is 24.59 g/mL and the accepted value is 25.49 g/mL?

The sum of 4.824 + 2.03 + 4.72319 + 123.4567 + 111.1 expressed to the proper number of significant figures is ____________.

Is the length a qualitative measurement of a pencil?

What volume is occupied by 16.4 g of mercury? The density of mercury is 13.6 g/mL.

A unit that is defined by a combination of base units is a(n) ________________.