PLEASE DO ASAP!! When aluminum oxidizes in air, it forms aluminum oxide
(Al2O3):4Al(s)+3O2(g)→2Al2O3(s)

A 51 g sheet of aluminum oxide formed completely in excess oxygen.
How many grams of aluminum were oxidized?

A. 27g
B.51g
C.54g
D.102g

Which of the following is true about a carbonated soft drink? . the carbon dioxide is the solvent, and water is the solute.. the water is the solution, and carbon dioxide is the solvent.. the carbon dioxide is the solution, and the water is the solvent.. the water is the solvent, and the carbon dioxide is the solute.. .

Consider the story you just read. all but one of the choices below indicate that something is living.

In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.