PLEASE HELP FAST!! NO LINKS! In the equation:

2H₂ + 1O₂ →→ 2H₂O

If you change the 2H₂ to 3H₂ molecules and balance the equation, which statement is correct?

A. The result of the equation will be the same.

B. The equation will produce three molecules of water.

C. It is not possible to produce water without leftover molecules.

D. Each oxygen molecule will combine with 2 hydrogen molecules with no leftover molecules.

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Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn

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.