Are my answers to these Chemistry problems correct?

Question

For the following questions, use the following: Tungsten metal is manufactured by the reaction of Tungsten Trioxide (WO₃) with Hydrogen (H₂). Water is a byproduct of this reaction.

*What is the balanced equation for this reaction?

A. WO3 + H2 → W + H2O

B. WO3 + 3H2 → W + 3H2O

C. WO3 + 3H2 → W + H2O

D. 2WO3 + 3H2 → 2W + 6H2O

E. None of the Above

 *How many grams of Tungsten can be produced from 3.0 × 10⁵ g of Hydrogen with excess Tungsten Trioxide?

A. 183.8 g W

B. 1.9 × 105 g W

C. 1.9 × 106 g W

D. 9.1 × 105 g W

E. 9.1 × 106 g W

 

*How many grams of WO₃ would be required under the terms of question 19?

A. 183.8 g WO3

B. 231.9 g WO3

C. 5.5 × 104 g WO3

D. 5.5 × 105 g WO3

E. 1.1 × 107 g WO3

Answer 1

Just one correction: I get 9.1 x 10⁶ for the grams of W. (3.0 x 10⁵ g H₂) * (1 mol H₂ /2.02g H₂) * (1 mol W /3 mol H₂) * (183.8g W /1 mol W) = 9.1 x 10⁶ g W.

I can't check the last response, not knowing the terms.