Explanation Reason for correct answer: Option b. is given as, “ 1 , 6 , 4 ”. The corresponding chemical reaction is shown below. P 4 ( s ) + H 2 ( g ) → PH 3 ( g ) To balance the above chemical equation, the number of phosphorous atoms and hydrogen atoms should be same on both sides. In the reactant side, there are four phosphorous atoms. So, on the product side, there should be four atoms of phosphorous. Therefore, a coefficient of 4 is placed before PH 3 as shown below. P 4 ( s ) + H 2 ( g ) → 4 PH 3 ( g ) In the reactant side, there are two hydrogen atoms and on the product side, there are 12 hydrogen atoms. Therefore, a coefficient of 6 is placed before H 2 as shown below. 1P 4 ( s ) + 6 H 2 ( g ) → 4 PH 3 ( g ) The balanced chemical reaction is shown below. 1P 4 ( s ) + 6 H 2 ( g ) → 4 PH 3 ( g ) Reason for incorrect answer: Option a

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Chapter 13, Problem 1RAT

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The coefficients that balance the equation _P4(s)+_H2(g)→_PH3(g).

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Chapter 13 Solutions

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To choose: The coefficients that balance the equation _P 4 ( s ) + _ H 2 ( g ) → _ PH 3 ( g ) .

Solution Summary: The author explains that the correct answer is option b. The number of phosphorous and hydrogen atoms should be the same on both sides.

Concept explainers

To choose:

The coefficients that balance the equation _P4(s)+_H2(g)→_PH3(g).

Want to see the full answer?

Chapter 13 Solutions

To choose: The coefficients that balance the equation _P 4 ( s ) + _ H 2 ( g ) → _ PH 3 ( g ) .

Solution Summary: The author explains that the correct answer is option b. The number of phosphorous and hydrogen atoms should be the same on both sides.

Concept explainers

To choose: The coefficients that balance the equation _P4(s)+_H2(g)→_PH3(g).

Want to see the full answer?

Chapter 13 Solutions

To choose:

The coefficients that balance the equation _P4(s)+_H2(g)→_PH3(g).