For the reaction nh3 + no → n2 + h2o, identify the reactants, products, and their coefficients once the equation is balanced. (3 points)
group of answer choices

reactants: 2nh3 and 2no; products: 2n2 and 3h2o

products: 2nh3 and 3no; reactants: 2n2 and 3h2o

reactants: 4nh3 and 6no; products: 5n2 and 6h2o

products: 4nh3 and 2no; reactants: 3n2 and 6h2o

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.