all 43 presidents of the united states

The area of the United States is 9,631,420 square kilometers. What is the word name for the area of the United States? => Ninety-six thirty-one thousand, four hundred twenty or Nine hundred thousand, six hundred thirty-one thousand, four hundred twenty or Nin..

The most common unit for mass is expressed in grams (g) or kilogram (kg) (1 kg = 10 3 g). In chemical measurement, IUPAC prescribes that the mass of a gas (m) be expressed in terms of the number of moles (n). The number of moles can be obtained from the mass of the gas using the relation..

All the molecules of a gas are identical with respect to their shape and mass. The molecules of different gases are different. The gas molecules behave as rigid, elastic and smooth spheres. The size of gas molecules is very less when compared to the intermolecular distance between them. The..

The population of United States was about 250 million in 2003, and was growing exponentially at a rate of about 0.7% per year. At this rate, what would be the population of United States in the year 2013? => 233 million or 252.2 million or 268.1 million or 25..

Using unit analysis, convert 6 dollars into Euros. The rate of currency exchange is 0.7 Euros per one United States dollar. => 4.2 Euros or 4.6 Euros or 4.4 Euros or 4.0 Euros..

The length of a rope is measured to be one liter. State whether the unit used to measure the length is correct. => Yes or No..

About 7,300,000 people were arrested in the United States in the year 2000. Then, about how many people were arrested per hour? => 854 or 831 or 889 or 786..

The circle graph gives the measure of the central angle for each category. Calculate the percent of the Hispanics in the United States. => 55% or 25% or 50% or 60%..

About 200,000 telephone calls are made in the United States on an average in a day. Estimate the number of telephone calls made per hour. => 8,383.33 or 8,433.33 or 8,233.33 or 8,333.33..

The scale in which the relative atomic masses of different atoms are expressed is called atomic mass unit scale. Atomic masses are not expressed as whole numbers because natural elements are mixtures of two or more isotopes. The atomic weight of chlorine is 35.43 amu. Chlorin..