Compare and contrast the geocentric and heliocentric theories and the evidence for each. Explain why the heliocentric theory is the currently accepted theory. Your essay should be a minimum of two paragraphs and use complete, grammatically correct sentences.

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397