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How many significant figures are in the number 1.89 × 103?

Calculate the volume of a cube (in cm3) with the dimensions: length = 2.3 cm, width = 0.44 dm, height = 0.29 dm V = l x w x h

How many significant figures are in the result of the calculation below? (4.321 – 4.21) × (6.9234 × 105)

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.