At what temperature is the following reaction feasible: HCl(g) + NH3(g) -> NH4Cl(s)? Enthalpy (H) = +946 kJ/ mol
Entropy (S) = +127 J/ K mol

A. 1073.0 K
B. 7.48 K
C. 134.25 K
D. 7448.8 K

Draw the lewis dot structure for each of the following polyatomic ions

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag