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How many significant figures are in the number 6.002 × 105?

A graduated cylinder contains 20.0 mL of water. An irregularly shaped object is placed in the cylinder, and the water level rises to the 31.2 mL mark. If the object has a mass of 63.1 g, what is its density?

Perform the following calculation and answer to the correct number of significant figures: (44.88 – 44.77) x (12 + 99) =

Which subatomic particle(s) make up the nucleus of the atom?

Round off the following to three significant figures: 0.032000000 cg

The density of gold is 19.3 g/mL. What is the volume of a gold nugget that weighs 79.3 g?

Convert: 8.21 × 102 g = ____________ kg.

Convert 798.9 m to decimeters.

The number of milligrams in 1.0 g is

Using the rules of significant figures, calculate the following: 345 – 0.3