Which element in the compounds below has an oxidation number (state) of +2? N in NH4Br Ba in Ba(OH)2 Cr in CrO3 V in VO2+

3) 2 1 H₂O(g) NaHCO3 (s)- ----> 1 Na2O(s) 2 CO2(g)

4. For the following reaction, predict the products AND balance the equation. You must show your work to receive credit. Na + Cl₂ Show Your Work

2. a) The oxidation number of an atom is typically the same as the charge of its common ion, therefore O is usually -2. Because magnesium oxide is a neutral compound, what must the oxidation number of Mg be? b) Neutral magnesium nitride that can sometimes be made as a byproduct of this reaction. What is the formula for this ionic compound?

How many moles of ammonia would be required to react exactly with 0.764 moles of copper (ii) oxide in the following reaction? 2NH+ 3 CuO= 3 Cu+ N2 + 3H2O?

Give detailed Solution with explanation needed

what type reaction is 2Fe+3H2SO4=Fe2(SO4)3+2H2

+ •OH A OA ● B OC OD OE HI + B OH Mg ether C OH D H.O. Br HBr m+ E

Write the balanced NET ionic equation for the reaction when (NH4)2CO3 and CaCl2 are mixed in aqueous solution. If no reaction occurs, simply write only NR.

Write the balanced NET ionic equation for the reaction when (NH4)2CO3 and CaCl2 are mixed in aqueous solution. If no reaction occurs, simply write only NR.