PLS HELP: Determine the percent yield for the reaction between 12.3 grams of magnesium and 5.2 L of nitrogen gas when 13.1 grams of magnesium nitride are recovered at standard temperature and pressure. 3 Mg + N2 ® Mg3N2

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?