In such process, 38.2g of Iron reacted with 6.8g of oxygen to produce the brown powder. Calculate the mass of the brown powder produced?

Adozen is 12, and your needing to calculate the weight of one medium egg, so i would do 21/12=1.75 per egg, and check your answer by doing 1.75 * 12= 21 : ) : ): ): ): ) i hoped i

C: plants and animals

Sorry i dont understand the question can you rephase it?

They are all solids.