what decimal power do the following abbreviations represent: (a)m, (b)k,(c)m,(d)n, and(e)u?

Suppose the densities of two metals are so close together that density is difficult to use to be able to distinguish them within the margin of error (a good example would be zinc and tin). What other physical properties could you use to determine which metal was which? Explain your reasoning thoroughly.

) Round off the following measurement to three significant digits: 14,546 cm.(a) 145 cm (b) 146 cm(c) 14,500 cm (d) 14,600 cm(e) 15,000 cm . the correct answer is c. 14,500 how step by step

A student determined in a set of four experiments that the density of magnesium metal was 1.66 g/ml,1.65 g/ml, 1.67 g/ml, 1.67 g/ml. The accepted value for its density is 1.72 g/ml. What can you concludeabout the precision and accuracy of the student’s data?

Having obtained the volume of a flask (25.00 cm³), the student emptied the flask, dried it, and filled it with an unknown liquid whose density she wished to determine. The mass of the stoppered flask when completely filled with liquid was 47.867 g. The mass of the empty stoppered flask was 26.192 g. Find the density of the liquid. (in g/cm³) (a) First we need to find the mass (in g) of the liquid by determining the difference. mass of liquid = g (b) The density of a pure substance is equal to its mass divided by its volume: density = mass volume Since the volume of the liquid equals that of the flask, we know both the mass and volume of the liquid and can easily find its density. Calculate the density (in g/cm³) of the unknown liquid. density of liquid=

Calculate the mass of ammonia (NH;) that contains a trillion (1.0 × 102) hydrogen atoms. Be sure your answer has a unit symbol if necessary, and round it to 2 significant digits. ?

The proton has a radius of approximately 1.0x10^-13 cm and a mass of 1.7x10^-24 g. Determine the density of a proton. For a sphere V = (4/3)pi^3

The diameter of an atom is approximately 1 x 1010m. What is the diameter in millimeters? (Hint, your answer will be in scientific notation, use the format of 1x10-??mm.) (please provide your answer in scientific notation with the correct number of significant digits and units.)

A chemist must dilute 80.6 mL of 82.1 uM aqueous mercury(II) iodide (Hgl,) solution until the concentration falls to 31.0 µM. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Round your answer to 3 significant digits.

The world's oceans have a combined volume of 3.204 x 108 miles3. (b) The Atlantic Ocean has a volume of 3.1 x 108 km3, and the Pacific Ocean has a volume of 6.6 x 108 km3. What percentage of the world's ocean volume is occupied by bodies of water OTHER THAN the Atlantic and Pacific Oceans?