1.) how many grams is 1.09 moles of Mg3N2? 2.) How many moles are in 7.55 g of KBr?
3.) what is the mass, in grams, of 0.48 moles of Na2O?
4.) how many moles is 14 grams of SrCI2?

If the root word engage means “to connect with something,” what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal.a.added more engine powerb.activated a connection to the pedalc.stalled the engined.released a connection to the pedal

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

What is the formula that this ionic compounds could form sr2+p3-o2-