Which of the equations below is a balanced chemical reaction? question 1 options: 3 mg + o2 → 2 mgo 2 mg + o2 → 2 mgo 2 n2 +7 h2 → 2 nh3 2 n2 + 3 h2 → nh3

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?

Two solids are mixed in a flask and stirred. after a few minutes, the flask becomes cold. which of the following best describes this reaction? a. an exothermic reaction b. a combustion reaction c. an endothermic reaction d. a decomposition reaction