How much Iron (III) oxide was produced, if 223.4 grams of Iron reacted with 96.0 grams of Oxygen? Fe + O2 —> Fe2O3
a. 96.0
b. 127.4 g
c. 223.4 g
d. 319.4 g

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

What is the mass of 0.46 mil of mgcl2

Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?