A year has 365 days, and a day has 24 hours. If an hour has 60 minutes and a minute has 60 seconds, how many seconds are there in 1 year? 54,750 s
525,600 s
3.15 Times. 107 s
1.89 Times. 109 s

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.

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?