Which kind of climate do the most stable ecosystems tend to have? A. Wet winters, dry summers

B. Cold winters, warm summers

C. cold and dry year-round

D. Warm and moist year round

219 grams of iron (iii) oxide reacts with excess carbon according to the reaction equation shown below. fe2o3 + c → fe + co2 after a scientist performs the chemical reaction they find the actual yield of iron to be 57.4 grams. calculate the percent yield of this chemical reaction.

If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g

Ineed to find the answer of this question because i dont understand it