Group 2, Period 6
whats the answer for this please it's on the periodic table

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.

How much energy moves onto the next level, in an energy pyramid

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know