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

Which of the following is not what John Dalton stated in his atomic theory?

The product of (1.400 × 10-1)(6.02 × 1023) will have how many significant figures?

Round off the following to three significant figures: 0.032000000 cg

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:             4.50 km x 12.5 km x 22 km

Calculate the following and record the answer the the proper number of significant figures. (45.68 – 45.65) x (32.1 + 89.9)

Which of the three major subatomic particles has/have a charge of –1?i.  electronii. protoniii. neutron

If the density of steel is 7.85 g/cm3 and the density of rust is 5.24 g/cm3 calculate the masses of 67.6 cm3 cubes of both materials respectively (one solid cube of steel and one solid cube of rust).

2.7 kilograms contain this many grams.