What is the limiting and excess reactant if 2.2 g of Mg is reacted with 4.5 g of oxygen? How much MgO is produced? Mg + O2 MgO

also tell me how you did it please-

What is the limiting and excess reactant is 15.3 g NaCl and 60.8 g Pb(NO3)2 react? How many grams of lead (II) chloride are produced? NaCl + Pb(NO3)2 NaNO3 + PbCl2

How many absorptions would you expect to observe in the 13c nmr spectra of the following molecules? a) 3-chloropentane b) cis-4-methyl-2-pentene

Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.